fix: clear mainWindow reference on window destroy (#587)

The mainWindow variable was never cleared when the window was destroyed,
unlike settingsWindow which had a proper 'closed' handler. This caused
getMainWindow() to return a destroyed window object, preventing the
activate handler from correctly detecting the main window was gone and
creating a new one.

Fixes #587

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/build.yml

@@ -93,6 +93,8 @@ jobs:
     name: build-linux-x64
     runs-on: ubuntu-22.04
     env:
+      npm_config_arch: x64
+      npm_config_target_arch: x64
       VITE_SYNC_GITHUB_CLIENT_ID: ${{ secrets.VITE_SYNC_GITHUB_CLIENT_ID }}
       VITE_SYNC_GOOGLE_CLIENT_ID: ${{ secrets.VITE_SYNC_GOOGLE_CLIENT_ID }}
       VITE_SYNC_GOOGLE_CLIENT_SECRET: ${{ secrets.VITE_SYNC_GOOGLE_CLIENT_SECRET }}
@@ -121,11 +123,23 @@ jobs:
           echo "Setting version to ${VERSION}"
           npm pkg set version="${VERSION}"
 
+      - name: Prepare node-pty Linux runtime
+        env:
+          npm_config_arch: x64
+        run: bash scripts/ensure-node-pty-linux.sh prepare x64
+
       - name: Build package
         env:
+          npm_config_arch: x64
           ELECTRON_BUILDER_PUBLISH: "never"
         run: npm run pack:linux-x64
 
+      - name: Verify packaged node-pty Linux runtime
+        run: bash scripts/ensure-node-pty-linux.sh verify x64
+
+      - name: Verify packaged deb artifact
+        run: bash scripts/verify-linux-deb-artifact.sh amd64
+
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
@@ -147,6 +161,8 @@ jobs:
     container:
       image: debian:bullseye
     env:
+      npm_config_arch: arm64
+      npm_config_target_arch: arm64
       VITE_SYNC_GITHUB_CLIENT_ID: ${{ secrets.VITE_SYNC_GITHUB_CLIENT_ID }}
       VITE_SYNC_GOOGLE_CLIENT_ID: ${{ secrets.VITE_SYNC_GOOGLE_CLIENT_ID }}
       VITE_SYNC_GOOGLE_CLIENT_SECRET: ${{ secrets.VITE_SYNC_GOOGLE_CLIENT_SECRET }}
@@ -155,7 +171,9 @@ jobs:
       - name: Install build dependencies
         run: |
           apt-get update
-          apt-get install -y curl build-essential python3 git libfuse2 file rpm
+          apt-get install -y curl build-essential python3 git libfuse2 file rpm \
+            libglib2.0-0 libgtk-3-0 libnss3 libxss1 libxtst6 libasound2 \
+            libatk-bridge2.0-0 libdrm2 libgbm1 libx11-xcb1 libxcb-dri3-0
           curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
           apt-get install -y nodejs
 
@@ -176,12 +194,23 @@ jobs:
           echo "Setting version to ${VERSION}"
           npm pkg set version="${VERSION}"
 
+      - name: Prepare node-pty Linux runtime
+        env:
+          npm_config_arch: arm64
+        run: bash scripts/ensure-node-pty-linux.sh prepare arm64
+
       - name: Build package
         env:
           npm_config_arch: arm64
           ELECTRON_BUILDER_PUBLISH: "never"
         run: npm run pack:linux-arm64
 
+      - name: Verify packaged node-pty Linux runtime
+        run: bash scripts/ensure-node-pty-linux.sh verify arm64
+
+      - name: Verify packaged deb artifact
+        run: bash scripts/verify-linux-deb-artifact.sh arm64
+
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
@@ -201,6 +230,7 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/') || (github.event_name == 'workflow_dispatch' && inputs.publish_release)
     permissions:
       contents: write
+      actions: read
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -214,6 +244,54 @@ jobs:
       - name: List artifacts
         run: ls -la artifacts/
 
+      - name: Verify update metadata files
+        run: |
+          missing=0
+          for f in latest-mac.yml latest.yml latest-linux.yml latest-linux-arm64.yml; do
+            if [ ! -f "artifacts/$f" ]; then
+              echo "::warning::Missing $f in merged artifacts, attempting recovery..."
+              missing=1
+            fi
+          done
+          if [ "$missing" = "1" ]; then
+            echo "Re-downloading individual artifacts to recover missing files..."
+            for name in netcatty-macos netcatty-windows netcatty-linux-x64 netcatty-linux-arm64; do
+              tmpdir="/tmp/artifact-${name}"
+              gh run download ${{ github.run_id }} --name "${name}" --dir "${tmpdir}" 2>/dev/null || true
+              if [ -d "${tmpdir}" ]; then
+                for yml in "${tmpdir}"/latest*.yml; do
+                  [ -f "$yml" ] && cp -v "$yml" artifacts/
+                done
+              fi
+            done
+            echo "After recovery:"
+            ls -la artifacts/*.yml
+          fi
+          # Final check — fail if any update yml is still missing
+          for f in latest-mac.yml latest.yml latest-linux.yml latest-linux-arm64.yml; do
+            if [ ! -f "artifacts/$f" ]; then
+              echo "::error::$f is still missing after recovery attempt"
+              exit 1
+            fi
+          done
+          echo "All update metadata files present."
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Verify downloaded Linux amd64 deb artifact
+        run: |
+          deb_file="$(find artifacts -maxdepth 1 -type f -name '*-linux-amd64.deb' -print | sort | head -n 1)"
+          test -n "${deb_file}"
+          bash scripts/verify-linux-deb-artifact.sh amd64 "${deb_file}"
+
+      - name: Verify downloaded Linux arm64 deb artifact metadata
+        env:
+          VERIFY_LOAD: "0"
+        run: |
+          deb_file="$(find artifacts -maxdepth 1 -type f -name '*-linux-arm64.deb' -print | sort | head -n 1)"
+          test -n "${deb_file}"
+          bash scripts/verify-linux-deb-artifact.sh arm64 "${deb_file}"
+
       - name: Generate Release Body
         run: node .github/scripts/generate-release-note.js
         env:

App.tsx

@@ -1,6 +1,7 @@
-import React, { Suspense, lazy, useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import React, { Suspense, lazy, useCallback, useEffect, useEffectEvent, useMemo, useRef, useState } from 'react';
 import { activeTabStore, useActiveTabId, useIsSftpActive, useIsTerminalLayerVisible, useIsVaultActive } from './application/state/activeTabStore';
 import { useAutoSync } from './application/state/useAutoSync';
+import { useImmersiveMode } from './application/state/useImmersiveMode';
 import { useManagedSourceSync } from './application/state/useManagedSourceSync';
 import { usePortForwardingAutoStart } from './application/state/usePortForwardingAutoStart';
 import { usePortForwardingState } from './application/state/usePortForwardingState';
@@ -14,10 +15,15 @@ import { initializeUIFonts } from './application/state/uiFontStore';
 import { I18nProvider, useI18n } from './application/i18n/I18nProvider';
 import { matchesKeyBinding } from './domain/models';
 import { resolveHostAuth } from './domain/sshAuth';
-import { applySyncPayload } from './domain/syncPayload';
+import { resolveHostTerminalThemeId } from './domain/terminalAppearance';
+import { collectSessionIds } from './domain/workspace';
+import { TERMINAL_THEMES } from './infrastructure/config/terminalThemes';
+import { useCustomThemes } from './application/state/customThemeStore';
+import { applySyncPayload } from './application/syncPayload';
 import { getCredentialProtectionAvailability } from './infrastructure/services/credentialProtection';
 import { netcattyBridge } from './infrastructure/services/netcattyBridge';
 import { localStorageAdapter } from './infrastructure/persistence/localStorageAdapter';
+import { STORAGE_KEY_DEBUG_HOTKEYS } from './infrastructure/config/storageKeys';
 import { TopTabs } from './components/TopTabs';
 import { Button } from './components/ui/button';
 import { Dialog, DialogContent, DialogFooter, DialogHeader, DialogTitle } from './components/ui/dialog';
@@ -28,7 +34,8 @@ import { VaultView, VaultSection } from './components/VaultView';
 import { KeyboardInteractiveModal, KeyboardInteractiveRequest } from './components/KeyboardInteractiveModal';
 import { PassphraseModal, PassphraseRequest } from './components/PassphraseModal';
 import { cn } from './lib/utils';
-import { ConnectionLog, Host, HostProtocol, SerialConfig, TerminalTheme } from './types';
+import { classifyLocalShellType } from './lib/localShell';
+import { ConnectionLog, Host, HostProtocol, SerialConfig, TerminalSession, TerminalTheme } from './types';
 import { LogView as LogViewType } from './application/state/useSessionState';
 import type { SftpView as SftpViewComponent } from './components/SftpView';
 import type { TerminalLayer as TerminalLayerComponent } from './components/TerminalLayer';
@@ -97,8 +104,7 @@ const LazyCreateWorkspaceDialog = lazy(() =>
 const IS_DEV = import.meta.env.DEV;
 const HOTKEY_DEBUG =
   IS_DEV &&
-  typeof window !== "undefined" &&
-  window.localStorage?.getItem("debug.hotkeys") === "1";
+  localStorageAdapter.readString(STORAGE_KEY_DEBUG_HOTKEYS) === "1";
 
 const LazySftpView = lazy(() =>
   import('./components/SftpView').then((m) => ({ default: m.SftpView })),
@@ -171,6 +177,7 @@ function App({ settings }: { settings: SettingsState }) {
   const {
     setTheme,
     resolvedTheme,
+    terminalThemeId,
     setTerminalThemeId,
     currentTerminalTheme,
     terminalFontFamilyId,
@@ -186,13 +193,26 @@ function App({ settings }: { settings: SettingsState }) {
     sftpShowHiddenFiles,
     sftpUseCompressedUpload,
     sftpAutoOpenSidebar,
+    sftpDefaultViewMode,
     editorWordWrap,
     setEditorWordWrap,
     sessionLogsEnabled,
     sessionLogsDir,
     sessionLogsFormat,
+    reapplyCurrentTheme,
+    immersiveMode,
+    workspaceFocusStyle,
   } = settings;
 
+  // Sync workspace focus indicator style to DOM for CSS targeting
+  useEffect(() => {
+    if (workspaceFocusStyle === 'border') {
+      document.documentElement.setAttribute('data-workspace-focus', 'border');
+    } else {
+      document.documentElement.removeAttribute('data-workspace-focus');
+    }
+  }, [workspaceFocusStyle]);
+
   const {
     hosts,
     keys,
@@ -270,6 +290,74 @@ function App({ settings }: { settings: SettingsState }) {
   // isMacClient is used for window controls styling
   const isMacClient = typeof navigator !== 'undefined' && /Mac|Macintosh/.test(navigator.userAgent);
 
+  // ---------------------------------------------------------------------------
+  // Immersive Mode — derive UI chrome colors from the active terminal's theme
+  // ---------------------------------------------------------------------------
+  const activeTabId = useActiveTabId();
+  const customThemes = useCustomThemes();
+
+  // Resolve the effective TerminalTheme for the currently focused terminal tab
+  const hostById = useMemo(
+    () => new Map(hosts.map((host) => [host.id, host])),
+    [hosts],
+  );
+  const sessionById = useMemo(
+    () => new Map(sessions.map((session) => [session.id, session])),
+    [sessions],
+  );
+  const workspaceById = useMemo(
+    () => new Map(workspaces.map((workspace) => [workspace.id, workspace])),
+    [workspaces],
+  );
+  const themeById = useMemo(
+    () => new Map([...customThemes, ...TERMINAL_THEMES].map((theme) => [theme.id, theme])),
+    [customThemes],
+  );
+  const activeTerminalTheme = useMemo<TerminalTheme | null>(() => {
+    if (activeTabId === 'vault' || activeTabId === 'sftp') return null;
+
+    const resolveTheme = (s: TerminalSession): TerminalTheme => {
+      const host = hostById.get(s.hostId) ?? null;
+      const themeId = resolveHostTerminalThemeId(host, currentTerminalTheme.id);
+      return themeById.get(themeId) || currentTerminalTheme;
+    };
+
+    // Workspace
+    const workspace = workspaceById.get(activeTabId);
+    if (workspace) {
+      // Focus mode: use the focused (or first remaining) session's theme
+      if (workspace.viewMode === 'focus') {
+        const wsSessionIds = collectSessionIds(workspace.root);
+        const focused = (workspace.focusedSessionId
+          ? sessionById.get(workspace.focusedSessionId)
+          : null)
+          ?? wsSessionIds.map((id) => sessionById.get(id)).find(Boolean);
+        return focused ? resolveTheme(focused) : null;
+      }
+      // Split mode: require all sessions to share the same theme
+      const sessionIds = collectSessionIds(workspace.root);
+      const wsSessions = sessionIds
+        .map((id) => sessionById.get(id))
+        .filter(Boolean) as TerminalSession[];
+      if (wsSessions.length === 0) return null;
+      const firstTheme = resolveTheme(wsSessions[0]);
+      const allSame = wsSessions.every(s => resolveTheme(s).id === firstTheme.id);
+      return allSame ? firstTheme : null;
+    }
+
+    // Single session tab
+    const session = sessionById.get(activeTabId);
+    if (!session) return null;
+    return resolveTheme(session);
+  }, [activeTabId, currentTerminalTheme, hostById, sessionById, themeById, workspaceById]);
+
+  useImmersiveMode({
+    isImmersive: immersiveMode,
+    activeTabId,
+    activeTerminalTheme,
+    restoreOriginalTheme: reapplyCurrentTheme,
+  });
+
   // Get port forwarding rules and import function
   const { rules: portForwardingRules, importRules: importPortForwardingRules, startTunnel, stopTunnel } = usePortForwardingState();
 
@@ -315,10 +403,148 @@ function App({ settings }: { settings: SettingsState }) {
   }, [handleSyncNow]);
 
   // Update check hook - checks for new versions on startup
-  const { updateState, dismissUpdate, openReleasePage, installUpdate } = useUpdateCheck();
+  const { updateState, dismissUpdate, installUpdate } = useUpdateCheck();
 
   // Window controls - must be before update toast effect which uses openSettingsWindow
   const { openSettingsWindow } = useWindowControls();
+  const _handleTrayJumpToSession = useEffectEvent((sessionId: string) => {
+    const session = sessions.find((item) => item.id === sessionId);
+    if (session?.workspaceId) {
+      setActiveTabId(session.workspaceId);
+      setWorkspaceFocusedSession(session.workspaceId, sessionId);
+      return;
+    }
+    setActiveTabId(sessionId);
+  });
+  const _handleTrayTogglePortForward = useEffectEvent((ruleId: string, start: boolean) => {
+    const rule = portForwardingRules.find((item) => item.id === ruleId);
+    if (!rule) return;
+    const host = rule.hostId ? hosts.find((item) => item.id === rule.hostId) : undefined;
+    if (!host) {
+      toast.error(t("pf.error.hostNotFound"));
+      return;
+    }
+
+    if (start) {
+      void startTunnel(rule, host, hosts, keys, identities, (status, error) => {
+        if (status === "error" && error) toast.error(error);
+      }, rule.autoStart);
+      return;
+    }
+
+    void stopTunnel(ruleId);
+  });
+  const _handleTrayPanelConnect = useEffectEvent((hostId: string) => {
+    const host = hosts.find((item) => item.id === hostId);
+    if (!host) {
+      toast.error(t("pf.error.hostNotFound"));
+      return;
+    }
+
+    const { username, hostname: localHost } = systemInfoRef.current;
+    if (host.protocol === 'serial') {
+      const portName = host.hostname.split('/').pop() || host.hostname;
+      const sessionId = connectToHost(host);
+      addConnectionLog({
+        sessionId,
+        hostId: host.id,
+        hostLabel: host.label || `Serial: ${portName}`,
+        hostname: host.hostname,
+        username,
+        protocol: 'serial',
+        startTime: Date.now(),
+        localUsername: username,
+        localHostname: localHost,
+        saved: false,
+      });
+      return;
+    }
+
+    const protocol = host.moshEnabled ? 'mosh' : (host.protocol || 'ssh');
+    const resolvedAuth = resolveHostAuth({ host, keys, identities });
+    const sessionId = connectToHost(host);
+    addConnectionLog({
+      sessionId,
+      hostId: host.id,
+      hostLabel: host.label,
+      hostname: host.hostname,
+      username: resolvedAuth.username || 'root',
+      protocol: protocol as 'ssh' | 'telnet' | 'local' | 'mosh',
+      startTime: Date.now(),
+      localUsername: username,
+      localHostname: localHost,
+      saved: false,
+    });
+  });
+  const _handleGlobalHotkeyKeyDown = useEffectEvent((e: KeyboardEvent) => {
+    const isMac = hotkeyScheme === 'mac';
+    const target = e.target as HTMLElement;
+    const isFormElement = target.tagName === 'INPUT' || target.tagName === 'TEXTAREA' || target.isContentEditable;
+    const isMonacoElement =
+      target instanceof HTMLElement &&
+      !!target.closest?.('.monaco-editor, .monaco-diff-editor, .monaco-inputbox');
+    const isXtermInput =
+      target instanceof HTMLElement &&
+      !!target.closest?.(".xterm, .xterm-helper-textarea, .xterm-screen, .xterm-viewport");
+
+    if ((isFormElement || isMonacoElement) && !isXtermInput && e.key !== 'Escape') {
+      return;
+    }
+
+    const isTerminalElement =
+      target instanceof HTMLElement &&
+      !!target.closest?.(".xterm, .xterm-helper-textarea, .xterm-screen, .xterm-viewport");
+    const isTerminalInPath = Boolean(
+      e.composedPath?.().some(
+        (node) =>
+          node instanceof HTMLElement &&
+          (node.classList.contains("xterm") ||
+            node.classList.contains("xterm-helper-textarea") ||
+            node.classList.contains("xterm-screen") ||
+            node.classList.contains("xterm-viewport") ||
+            node.hasAttribute("data-session-id")),
+      ),
+    );
+
+    for (const binding of keyBindings) {
+      const keyStr = isMac ? binding.mac : binding.pc;
+      if (!matchesKeyBinding(e, keyStr, isMac)) continue;
+      if (HOTKEY_DEBUG) console.log('[Hotkeys] Matched binding:', binding.action, keyStr);
+      if (binding.category === 'sftp') {
+        continue;
+      }
+      const terminalActions = ['copy', 'paste', 'selectAll', 'clearBuffer', 'searchTerminal'];
+      if (terminalActions.includes(binding.action)) {
+        if (isTerminalElement) {
+          return;
+        }
+        continue;
+      }
+
+      e.preventDefault();
+      e.stopPropagation();
+      if (HOTKEY_DEBUG) {
+        console.log('[Hotkeys] Global handle', {
+          action: binding.action,
+          key: e.key,
+          meta: e.metaKey,
+          ctrl: e.ctrlKey,
+          alt: e.altKey,
+          shift: e.shiftKey,
+          targetTag: target?.tagName,
+          isTerminalElement,
+          isTerminalInPath,
+        });
+      }
+      executeHotkeyAction(binding.action, e);
+      return;
+    }
+  });
+  const _handleEscapeKeyDown = useEffectEvent((e: KeyboardEvent) => {
+    if (e.key === 'Escape' && isQuickSwitcherOpen) {
+      setIsQuickSwitcherOpen(false);
+    }
+  });
 
   // Show toast notification when update is available (only when auto-download is idle)
   useEffect(() => {
@@ -350,7 +576,7 @@ function App({ settings }: { settings: SettingsState }) {
   }, [updateState.hasUpdate, updateState.latestRelease, updateState.autoDownloadStatus, t, openSettingsWindow, dismissUpdate]);
 
   // Track previous autoDownloadStatus so toast effects fire only on actual transitions,
-  // not when unrelated deps (openReleasePage, installUpdate) change their reference.
+  // not when unrelated deps (installUpdate, openSettingsWindow) change their reference.
   const prevAutoDownloadStatusRef = useRef(updateState.autoDownloadStatus);
   useEffect(() => {
     const prev = prevAutoDownloadStatusRef.current;
@@ -373,23 +599,18 @@ function App({ settings }: { settings: SettingsState }) {
         t('update.downloadFailed.message'),
         {
           title: t('update.downloadFailed.title'),
-          actionLabel: t('update.openReleases'),
-          onClick: () => openReleasePage(),
+          actionLabel: t('update.viewInSettings'),
+          onClick: () => void openSettingsWindow(),
         }
       );
     }
-  }, [updateState.autoDownloadStatus, updateState.latestRelease?.version, t, installUpdate, openReleasePage]);
-
-  // Memoize keys for port forwarding to prevent unnecessary re-renders
-  const portForwardingKeys = useMemo(
-    () => keys.map((k) => ({ id: k.id, privateKey: k.privateKey, passphrase: k.passphrase, })),
-    [keys]
-  );
+  }, [updateState.autoDownloadStatus, updateState.latestRelease?.version, t, installUpdate, openSettingsWindow]);
 
   // Auto-start port forwarding rules on app launch
   usePortForwardingAutoStart({
     hosts,
-    keys: portForwardingKeys,
+    keys,
+    identities,
   });
 
   // Sync tray menu data + handle tray actions
@@ -430,111 +651,34 @@ function App({ settings }: { settings: SettingsState }) {
     if (!bridge?.onTrayFocusSession || !bridge?.onTrayTogglePortForward) return;
 
     const unsubscribeFocus = bridge.onTrayFocusSession((sessionId) => {
-      // Find the session to check if it belongs to a workspace
-      const session = sessions.find((s) => s.id === sessionId);
-      if (session?.workspaceId) {
-        // Session is in a workspace - navigate to workspace and focus the session
-        setActiveTabId(session.workspaceId);
-        setWorkspaceFocusedSession(session.workspaceId, sessionId);
-      } else {
-        // Standalone session or session not found - just set tab
-        setActiveTabId(sessionId);
-      }
+      _handleTrayJumpToSession(sessionId);
     });
-
     const unsubscribeToggle = bridge.onTrayTogglePortForward((ruleId, start) => {
-      const rule = portForwardingRules.find((r) => r.id === ruleId);
-      if (!rule) return;
-      const host = rule.hostId ? hosts.find((h) => h.id === rule.hostId) : undefined;
-      if (!host) {
-        toast.error(t("pf.error.hostNotFound"));
-        return;
-      }
-
-      const keysForPf = keys.map((k) => ({ id: k.id, privateKey: k.privateKey, passphrase: k.passphrase }));
-      if (start) {
-        void startTunnel(rule, host, keysForPf, (status, error) => {
-          if (status === "error" && error) toast.error(error);
-        }, rule.autoStart);
-      } else {
-        void stopTunnel(ruleId);
-      }
+      _handleTrayTogglePortForward(ruleId, start);
     });
 
     return () => {
       unsubscribeFocus?.();
       unsubscribeToggle?.();
     };
-  }, [hosts, keys, portForwardingRules, sessions, setActiveTabId, setWorkspaceFocusedSession, startTunnel, stopTunnel, t]);
+  }, []);
 
   // Tray panel actions (from main process)
   useEffect(() => {
-    const handlerJump = (sessionId: string) => {
-      // Find the session to check if it belongs to a workspace
-      const session = sessions.find((s) => s.id === sessionId);
-      if (session?.workspaceId) {
-        // Session is in a workspace - navigate to workspace and focus the session
-        setActiveTabId(session.workspaceId);
-        setWorkspaceFocusedSession(session.workspaceId, sessionId);
-      } else {
-        // Standalone session or session not found - just set tab
-        setActiveTabId(sessionId);
-      }
-    };
-
-    const handlerConnect = (hostId: string) => {
-      const host = hosts.find((h) => h.id === hostId);
-      if (!host) {
-        toast.error(t("pf.error.hostNotFound"));
-        return;
-      }
-
-      const { username, hostname: localHost } = systemInfoRef.current;
-      if (host.protocol === 'serial') {
-        const portName = host.hostname.split('/').pop() || host.hostname;
-        const sessionId = connectToHost(host);
-        addConnectionLog({
-          sessionId,
-          hostId: host.id,
-          hostLabel: host.label || `Serial: ${portName}`,
-          hostname: host.hostname,
-          username,
-          protocol: 'serial',
-          startTime: Date.now(),
-          localUsername: username,
-          localHostname: localHost,
-          saved: false,
-        });
-        return;
-      }
-
-      const protocol = host.moshEnabled ? 'mosh' : (host.protocol || 'ssh');
-      const resolvedAuth = resolveHostAuth({ host, keys, identities });
-      const sessionId = connectToHost(host);
-      addConnectionLog({
-        sessionId,
-        hostId: host.id,
-        hostLabel: host.label,
-        hostname: host.hostname,
-        username: resolvedAuth.username || 'root',
-        protocol: protocol as 'ssh' | 'telnet' | 'local' | 'mosh',
-        startTime: Date.now(),
-        localUsername: username,
-        localHostname: localHost,
-        saved: false,
-      });
-    };
-
     const bridge = netcattyBridge.get();
     if (!bridge?.onTrayPanelJumpToSession || !bridge?.onTrayPanelConnectToHost) return;
 
-    const unsubscribeJump = bridge.onTrayPanelJumpToSession(handlerJump);
-    const unsubscribeConnect = bridge.onTrayPanelConnectToHost(handlerConnect);
+    const unsubscribeJump = bridge.onTrayPanelJumpToSession((sessionId) => {
+      _handleTrayJumpToSession(sessionId);
+    });
+    const unsubscribeConnect = bridge.onTrayPanelConnectToHost((hostId) => {
+      _handleTrayPanelConnect(hostId);
+    });
     return () => {
       unsubscribeJump?.();
       unsubscribeConnect?.();
     };
-  }, [addConnectionLog, connectToHost, hosts, identities, keys, sessions, setActiveTabId, setWorkspaceFocusedSession, t]);
+  }, []);
 
   // Keyboard-interactive authentication (2FA/MFA) event listener
   useEffect(() => {
@@ -657,6 +801,24 @@ function App({ settings }: { settings: SettingsState }) {
   const addConnectionLogRef = useRef(addConnectionLog);
   addConnectionLogRef.current = addConnectionLog;
 
+  const createLocalTerminalWithCurrentShell = useCallback(() => {
+    return createLocalTerminal({
+      shellType: classifyLocalShellType(terminalSettings.localShell, navigator.userAgent),
+    });
+  }, [createLocalTerminal, terminalSettings.localShell]);
+
+  const splitSessionWithCurrentShell = useCallback((sessionId: string, direction: 'horizontal' | 'vertical') => {
+    return splitSession(sessionId, direction, {
+      localShellType: classifyLocalShellType(terminalSettings.localShell, navigator.userAgent),
+    });
+  }, [splitSession, terminalSettings.localShell]);
+
+  const copySessionWithCurrentShell = useCallback((sessionId: string) => {
+    return copySession(sessionId, {
+      localShellType: classifyLocalShellType(terminalSettings.localShell, navigator.userAgent),
+    });
+  }, [copySession, terminalSettings.localShell]);
+
   // Shared hotkey action handler - used by both global handler and terminal callback
   const executeHotkeyAction = useCallback((action: string, e: KeyboardEvent) => {
     switch (action) {
@@ -728,7 +890,7 @@ function App({ settings }: { settings: SettingsState }) {
           localHostname: systemInfoRef.current.hostname,
           saved: false,
         });
-        createLocalTerminal();
+        createLocalTerminalWithCurrentShell();
         break;
       case 'openHosts':
         setActiveTabId('vault');
@@ -767,7 +929,7 @@ function App({ settings }: { settings: SettingsState }) {
         const activeWs = workspaces.find(w => w.id === currentId);
         if (activeSession && !activeSession.workspaceId) {
           // Standalone session - split it
-          splitSession(activeSession.id, 'horizontal');
+          splitSessionWithCurrentShell(activeSession.id, 'horizontal');
         } else if (activeWs) {
           // In a workspace - need to determine focused session
           // For now, we'll need the terminal to handle this via context menu
@@ -782,7 +944,7 @@ function App({ settings }: { settings: SettingsState }) {
         const activeWs = workspaces.find(w => w.id === currentId);
         if (activeSession && !activeSession.workspaceId) {
           // Standalone session - split it
-          splitSession(activeSession.id, 'vertical');
+          splitSessionWithCurrentShell(activeSession.id, 'vertical');
         } else if (activeWs) {
           // In a workspace - need to determine focused session
           if (IS_DEV) console.log('[Hotkey] Split vertical in workspace - use context menu on specific terminal');
@@ -822,7 +984,7 @@ function App({ settings }: { settings: SettingsState }) {
         break;
       }
     }
-  }, [orderedTabs, sessions, workspaces, setActiveTabId, closeSession, closeWorkspace, createLocalTerminal, splitSession, moveFocusInWorkspace, toggleBroadcast]);
+  }, [orderedTabs, sessions, workspaces, setActiveTabId, closeSession, closeWorkspace, createLocalTerminalWithCurrentShell, splitSessionWithCurrentShell, moveFocusInWorkspace, toggleBroadcast]);
 
   // Callback for terminal to invoke app-level hotkey actions
   const handleHotkeyAction = useCallback((action: string, e: KeyboardEvent) => {
@@ -833,96 +995,21 @@ function App({ settings }: { settings: SettingsState }) {
   useEffect(() => {
     if (hotkeyScheme === 'disabled' || isHotkeyRecording) return;
 
-    const isMac = hotkeyScheme === 'mac';
-    if (HOTKEY_DEBUG) {
-      console.log('[Hotkeys] Registering global hotkey handler, scheme:', hotkeyScheme, 'bindings count:', keyBindings.length);
-    }
-
     const handleGlobalKeyDown = (e: KeyboardEvent) => {
-      // Don't handle if we're in an input or textarea (except for Escape)
-      // Note: xterm terminal handles its own key interception via attachCustomKeyEventHandler
-      const target = e.target as HTMLElement;
-      const isFormElement = target.tagName === 'INPUT' || target.tagName === 'TEXTAREA' || target.isContentEditable;
-      const isMonacoElement =
-        target instanceof HTMLElement &&
-        !!target.closest?.('.monaco-editor, .monaco-diff-editor, .monaco-inputbox');
-      const isXtermInput =
-        target instanceof HTMLElement &&
-        !!target.closest?.(".xterm, .xterm-helper-textarea, .xterm-screen, .xterm-viewport");
-
-      // Monaco is not always contentEditable/input, so treat it as an editor surface.
-      if ((isFormElement || isMonacoElement) && !isXtermInput && e.key !== 'Escape') {
-        return;
-      }
-
-      const isTerminalElement =
-        target instanceof HTMLElement &&
-        !!target.closest?.(".xterm, .xterm-helper-textarea, .xterm-screen, .xterm-viewport");
-      const isTerminalInPath = Boolean(
-        e.composedPath?.().some(
-          (node) =>
-            node instanceof HTMLElement &&
-            (node.classList.contains("xterm") ||
-              node.classList.contains("xterm-helper-textarea") ||
-              node.classList.contains("xterm-screen") ||
-              node.classList.contains("xterm-viewport") ||
-              node.hasAttribute("data-session-id")),
-        ),
-      );
-
-      // Check each key binding
-      for (const binding of keyBindings) {
-        const keyStr = isMac ? binding.mac : binding.pc;
-        if (matchesKeyBinding(e, keyStr, isMac)) {
-          if (HOTKEY_DEBUG) console.log('[Hotkeys] Matched binding:', binding.action, keyStr);
-          // SFTP shortcuts are handled by SFTP-specific hooks.
-          if (binding.category === 'sftp') {
-            continue;
-          }
-          // Terminal-specific actions should be handled by the terminal
-          // Don't handle them at app level
-          const terminalActions = ['copy', 'paste', 'selectAll', 'clearBuffer', 'searchTerminal'];
-          if (terminalActions.includes(binding.action)) {
-            if (isTerminalElement) {
-              return; // Let terminal handle it
-            }
-            continue; // Ignore terminal actions outside terminal
-          }
-
-          e.preventDefault();
-          e.stopPropagation();
-          if (HOTKEY_DEBUG) {
-            console.log('[Hotkeys] Global handle', {
-              action: binding.action,
-              key: e.key,
-              meta: e.metaKey,
-              ctrl: e.ctrlKey,
-              alt: e.altKey,
-              shift: e.shiftKey,
-              targetTag: target?.tagName,
-              isTerminalElement,
-              isTerminalInPath,
-            });
-          }
-          executeHotkeyAction(binding.action, e);
-          return;
-        }
-      }
+      _handleGlobalHotkeyKeyDown(e);
     };
 
     window.addEventListener('keydown', handleGlobalKeyDown, true);
     return () => window.removeEventListener('keydown', handleGlobalKeyDown, true);
-  }, [hotkeyScheme, keyBindings, isHotkeyRecording, executeHotkeyAction]);
+  }, [hotkeyScheme, isHotkeyRecording]);
 
   useEffect(() => {
     const onKeyDown = (e: KeyboardEvent) => {
-      if (e.key === 'Escape' && isQuickSwitcherOpen) {
-        setIsQuickSwitcherOpen(false);
-      }
+      _handleEscapeKeyDown(e);
     };
     window.addEventListener('keydown', onKeyDown);
     return () => window.removeEventListener('keydown', onKeyDown);
-  }, [isQuickSwitcherOpen]);
+  }, []);
 
   const quickResults = useMemo(() => {
     if (!isQuickSwitcherOpen) return [];
@@ -935,7 +1022,7 @@ function App({ settings }: { settings: SettingsState }) {
       )
       : hosts;
     return filtered;
-  }, [hosts, quickSearch, isQuickSwitcherOpen]);
+  }, [quickSearch, hosts, isQuickSwitcherOpen]);
 
   const handleDeleteHost = useCallback((hostId: string) => {
     const target = hosts.find(h => h.id === hostId);
@@ -968,7 +1055,7 @@ function App({ settings }: { settings: SettingsState }) {
   // Wrapper to create local terminal with logging
   const handleCreateLocalTerminal = useCallback(() => {
     const { username, hostname } = systemInfoRef.current;
-    const sessionId = createLocalTerminal();
+    const sessionId = createLocalTerminalWithCurrentShell();
     addConnectionLog({
       sessionId,
       hostId: '',
@@ -981,7 +1068,7 @@ function App({ settings }: { settings: SettingsState }) {
       localHostname: hostname,
       saved: false,
     });
-  }, [addConnectionLog, createLocalTerminal]);
+  }, [addConnectionLog, createLocalTerminalWithCurrentShell]);
 
   // Wrapper to connect to host with logging
   const handleConnectToHost = useCallback((host: Host) => {
@@ -1024,10 +1111,10 @@ function App({ settings }: { settings: SettingsState }) {
   }, [addConnectionLog, connectToHost, identities, keys]);
 
   // Wrapper to create serial session with logging
-  const handleConnectSerial = useCallback((config: SerialConfig) => {
+  const handleConnectSerial = useCallback((config: SerialConfig, options?: { charset?: string }) => {
     const { username, hostname } = systemInfoRef.current;
     const portName = config.path.split('/').pop() || config.path;
-    const sessionId = createSerialSession(config);
+    const sessionId = createSerialSession(config, options);
     addConnectionLog({
       sessionId,
       hostId: '',
@@ -1191,7 +1278,7 @@ function App({ settings }: { settings: SettingsState }) {
   }, []);
 
   return (
-    <div className="flex flex-col h-screen text-foreground font-sans netcatty-shell" onContextMenu={handleRootContextMenu}>
+    <div className={cn("flex flex-col h-screen text-foreground font-sans netcatty-shell", immersiveMode && activeTerminalTheme && "immersive-transition")} onContextMenu={handleRootContextMenu}>
       <TopTabs
         theme={resolvedTheme}
         hosts={hosts}
@@ -1204,7 +1291,7 @@ function App({ settings }: { settings: SettingsState }) {
         isMacClient={isMacClient}
         onCloseSession={closeSession}
         onRenameSession={startSessionRename}
-        onCopySession={copySession}
+        onCopySession={copySessionWithCurrentShell}
         onRenameWorkspace={startWorkspaceRename}
         onCloseWorkspace={closeWorkspace}
         onCloseLogView={closeLogView}
@@ -1212,6 +1299,7 @@ function App({ settings }: { settings: SettingsState }) {
         onToggleTheme={handleToggleTheme}
         onOpenSettings={handleOpenSettings}
         onSyncNow={handleSyncNowManual}
+        isImmersiveActive={immersiveMode && activeTerminalTheme !== null}
         onStartSessionDrag={setDraggingSessionId}
         onEndSessionDrag={handleEndSessionDrag}
         onReorderTabs={reorderTabs}
@@ -1233,6 +1321,8 @@ function App({ settings }: { settings: SettingsState }) {
             sessions={sessions}
             hotkeyScheme={hotkeyScheme}
             keyBindings={keyBindings}
+            terminalThemeId={terminalThemeId}
+            terminalFontSize={terminalFontSize}
             onOpenSettings={handleOpenSettings}
             onOpenQuickSwitcher={handleOpenQuickSwitcher}
             onCreateLocalTerminal={handleCreateLocalTerminal}
@@ -1261,7 +1351,21 @@ function App({ settings }: { settings: SettingsState }) {
           />
         </VaultViewContainer>
 
-        <SftpViewMount hosts={hosts} keys={keys} identities={identities} updateHosts={updateHosts} />
+        <SftpViewMount
+          hosts={hosts}
+          keys={keys}
+          identities={identities}
+          updateHosts={updateHosts}
+          sftpDefaultViewMode={sftpDefaultViewMode}
+          sftpDoubleClickBehavior={sftpDoubleClickBehavior}
+          sftpAutoSync={sftpAutoSync}
+          sftpShowHiddenFiles={sftpShowHiddenFiles}
+          sftpUseCompressedUpload={sftpUseCompressedUpload}
+          hotkeyScheme={hotkeyScheme}
+          keyBindings={keyBindings}
+          editorWordWrap={editorWordWrap}
+          setEditorWordWrap={setEditorWordWrap}
+        />
 
         <TerminalLayerMount
           hosts={hosts}
@@ -1298,10 +1402,11 @@ function App({ settings }: { settings: SettingsState }) {
           onSetDraggingSessionId={setDraggingSessionId}
           onToggleWorkspaceViewMode={toggleWorkspaceViewMode}
           onSetWorkspaceFocusedSession={setWorkspaceFocusedSession}
-          onSplitSession={splitSession}
+          onSplitSession={splitSessionWithCurrentShell}
           isBroadcastEnabled={isBroadcastEnabled}
           onToggleBroadcast={toggleBroadcast}
           updateHosts={updateHosts}
+          sftpDefaultViewMode={sftpDefaultViewMode}
           sftpDoubleClickBehavior={sftpDoubleClickBehavior}
           sftpAutoSync={sftpAutoSync}
           sftpShowHiddenFiles={sftpShowHiddenFiles}

README.md

@@ -5,13 +5,13 @@
 <h1 align="center">Netcatty</h1>
 
 <p align="center">
-  <strong>Modern SSH Client, SFTP Browser & Terminal Manager</strong><br/>
+  <strong>🔥 AI-Powered SSH Client, SFTP Browser & Terminal Manager 🚀</strong><br/>
   <a href="https://netcatty.app"><strong>netcatty.app</strong></a>
 </p>
 
 <p align="center">
   A beautiful, feature-rich SSH workspace built with Electron, React, and xterm.js.<br/>
-  Split terminals, Vault views, SFTP workflows, custom themes, and keyword highlighting — all in one.
+  🔥 Built-in AI Agent · Split terminals · Vault views · SFTP workflows · Custom themes — all in one.
 </p>
 
 <p align="center">
@@ -42,10 +42,52 @@
 
 [![Netcatty Main Interface](screenshots/main-window-dark.png)](screenshots/main-window-dark.png)
 
+---
+
+<a name="catty-agent"></a>
+# 🔥 Catty Agent — Your IT Ops AI Partner
+
+> 🚀 **Boost your IT ops daily work with AI power.** Catty Agent is the built-in AI assistant that understands your servers, executes commands, and handles complex multi-host operations — all through natural conversation.
+
+<p align="center">
+  <img src="screenshots/ai-feature.png" alt="Catty Agent Interface" width="800">
+</p>
+
+### 🔥 What can Catty Agent do?
+
+- 🚀 **Natural language server management** — just tell it what you need, no more memorizing commands
+- 🔥 **Real-time server diagnostics** — check status, inspect logs, monitor resources through conversation
+- 🚀 **Multi-host orchestration** — coordinate tasks across multiple servers simultaneously
+- 🔥 **Intelligent context awareness** — understands your server environment and provides tailored responses
+- 🚀 **One-click complex operations** — set up clusters, deploy services, and more with simple instructions
+
+### 🎬 AI in Action
+
+#### 🔥 Single Host — Intelligent Server Diagnostics
+
+Ask Catty Agent to check a server's health, and it runs the right commands, analyzes the output, and gives you a clear summary — all in seconds.
+
+
+https://github.com/user-attachments/assets/eecf08f1-80bd-49db-886d-b36e93388865
+
+
+
+
+#### 🚀 Multi-Host — Docker Swarm Cluster Setup
+
+Watch Catty Agent orchestrate a Docker Swarm cluster across two servers in one conversation. It handles the init, token exchange, and node joining — you just tell it what you want.
+
+
+
+https://github.com/user-attachments/assets/282027aa-5c9e-4bb1-b2c3-5eea9df2b203
+
+
+
 ---
 
 # Contents <!-- omit in toc -->
 
+- [🔥 Catty Agent — AI Partner](#catty-agent)
 - [What is Netcatty](#what-is-netcatty)
 - [Why Netcatty](#why-netcatty)
 - [Features](#features)

application/i18n/locales/en.ts

@@ -5,6 +5,9 @@ const en: Messages = {
   'common.save': 'Save',
   'common.cancel': 'Cancel',
   'common.close': 'Close',
+  'common.reset': 'Reset',
+  'common.zoomIn': 'Zoom in',
+  'common.zoomOut': 'Zoom out',
   'common.settings': 'Settings',
   'common.search': 'Search',
   'common.searchPlaceholder': 'Search...',
@@ -30,6 +33,7 @@ const en: Messages = {
   'common.back': 'Back',
   'common.apply': 'Apply',
   'common.use': 'Use',
+  'common.useGlobal': 'Use global',
   'common.saveChanges': 'Save Changes',
   'common.advanced': 'Advanced',
   'common.left': 'Left',
@@ -95,6 +99,21 @@ const en: Messages = {
   'settings.system.credentials.unavailableHint': 'Credentials encrypted on another user profile or machine cannot be decrypted here. Re-enter and save credentials on this device.',
   'settings.system.credentials.portabilityHint': 'Cloud Sync is portable because it uses your master key encryption. Local safeStorage encryption is device/user scoped.',
 
+  // Settings > System > Crash Logs
+  'settings.system.crashLogs.title': 'Crash Logs',
+  'settings.system.crashLogs.description': 'View error logs from the main process to help diagnose unexpected behavior.',
+  'settings.system.crashLogs.noLogs': 'No crash logs found.',
+  'settings.system.crashLogs.entries': '{count} entries',
+  'settings.system.crashLogs.clear': 'Clear all logs',
+  'settings.system.crashLogs.cleared': 'Cleared {count} log file(s).',
+  'settings.system.crashLogs.source': 'Source',
+  'settings.system.crashLogs.time': 'Time',
+  'settings.system.crashLogs.message': 'Message',
+  'settings.system.crashLogs.stack': 'Stack Trace',
+  'settings.system.crashLogs.hint': 'Crash logs are retained for 30 days and automatically rotated.',
+  'settings.system.crashLogs.collapse': 'Collapse',
+  'settings.system.crashLogs.expand': 'Show details',
+
   // Settings > System > Software Update
   'settings.update.title': 'Software Update',
   'settings.update.currentVersion': 'Current version',
@@ -212,6 +231,9 @@ const en: Messages = {
   'settings.appearance.themeColor.desc': 'Pick a preset palette for each theme',
   'settings.appearance.themeColor.light': 'Light palette',
   'settings.appearance.themeColor.dark': 'Dark palette',
+  'settings.appearance.immersiveMode': 'Immersive Mode',
+  'settings.appearance.immersiveMode.desc':
+    'When enabled, the UI chrome (tab bar, sidebar, status bar) adapts its colors to match the active terminal theme for a visually cohesive experience.',
   'settings.appearance.customCss': 'Custom CSS',
   'settings.appearance.customCss.desc':
     'Add custom CSS to personalize the app appearance. Changes apply immediately.',
@@ -292,6 +314,9 @@ const en: Messages = {
   'settings.terminal.behavior.scrollOnPaste': 'Scroll on paste',
   'settings.terminal.behavior.scrollOnPaste.desc':
     'Scroll terminal to bottom when pasting text',
+  'settings.terminal.behavior.smoothScrolling': 'Smooth scrolling',
+  'settings.terminal.behavior.smoothScrolling.desc':
+    'Animate terminal viewport scrolling instead of jumping instantly',
   'settings.terminal.behavior.linkModifier': 'Link modifier key',
   'settings.terminal.behavior.linkModifier.desc': 'Hold this key to click on links in terminal',
   'settings.terminal.behavior.linkModifier.none': 'None (click directly)',
@@ -330,6 +355,22 @@ const en: Messages = {
   'settings.terminal.rendering.renderer.desc': 'Choose the terminal rendering technology. Auto will use Canvas on low-memory devices. Changes take effect on new terminal sessions.',
   'settings.terminal.rendering.auto': 'Auto',
 
+  // Settings > Terminal > Workspace Focus Indicator
+  'settings.terminal.section.workspaceFocus': 'Workspace Focus Indicator',
+  'settings.terminal.workspaceFocus.style': 'Focus indicator style',
+  'settings.terminal.workspaceFocus.style.desc': 'How to indicate which pane is focused in split view.',
+  'settings.terminal.workspaceFocus.dim': 'Dim unfocused panes',
+  'settings.terminal.workspaceFocus.border': 'Border on focused pane',
+
+  // Settings > Terminal > Autocomplete
+  'settings.terminal.section.autocomplete': 'Autocomplete',
+  'settings.terminal.autocomplete.enabled': 'Enable autocomplete',
+  'settings.terminal.autocomplete.enabled.desc': 'Show command suggestions based on history and command specs as you type.',
+  'settings.terminal.autocomplete.ghostText': 'Ghost text',
+  'settings.terminal.autocomplete.ghostText.desc': 'Show inline gray suggestion text after the cursor (like fish shell).',
+  'settings.terminal.autocomplete.popupMenu': 'Popup menu',
+  'settings.terminal.autocomplete.popupMenu.desc': 'Show a floating list of multiple suggestions.',
+
   // Settings > Shortcuts
   'settings.shortcuts.section.scheme': 'Hotkey Scheme',
   'settings.shortcuts.scheme.label': 'Keyboard shortcuts',
@@ -579,6 +620,8 @@ const en: Messages = {
   'sftp.filter.placeholder': 'Filter by filename...',
   'sftp.bookmark.add': 'Bookmark this path',
   'sftp.bookmark.remove': 'Remove bookmark',
+  'sftp.bookmark.addGlobal': '+Global',
+  'sftp.bookmark.addGlobalTooltip': 'Save as global bookmark (shared across all hosts)',
   'sftp.bookmark.empty': 'No bookmarks yet',
   'sftp.columns.name': 'Name',
   'sftp.columns.modified': 'Modified',
@@ -595,8 +638,21 @@ const en: Messages = {
   'sftp.dragDropToUpload': 'Drag and drop files here to upload',
   'sftp.retry': 'Retry',
   'sftp.context.open': 'Open',
+  'sftp.context.navigateTo': 'Navigate to',
+  'sftp.context.moveTo': 'Move to...',
+  'sftp.context.moveToParent': 'Move to parent directory',
+  'sftp.moveTo.title': 'Move to directory',
+  'sftp.moveTo.placeholder': 'Enter target directory path',
+  'sftp.moveTo.confirm': 'Move',
+  'sftp.moveTo.pathNotFound': 'Directory not found or inaccessible',
   'sftp.context.download': 'Download',
   'sftp.context.copyToOtherPane': 'Copy to other pane',
+  'sftp.viewMode.label': 'View mode',
+  'sftp.viewMode.list': 'List view',
+  'sftp.viewMode.tree': 'Tree view',
+  'sftp.tree.loadError': 'Failed to load directory',
+  'sftp.tree.loading': 'Loading...',
+  'sftp.kind.folder': 'Folder',
   'sftp.context.rename': 'Rename',
   'sftp.context.permissions': 'Permissions',
   'sftp.context.delete': 'Delete',
@@ -609,12 +665,21 @@ const en: Messages = {
   'sftp.path.doubleClickToEdit': 'Double-click to edit path',
   'sftp.showHiddenPaths': 'Hidden paths',
   'sftp.task.waiting': 'Waiting...',
+  'sftp.transfer.preparing': 'preparing...',
   'sftp.status.loading': 'Loading...',
   'sftp.status.uploading': 'Uploading...',
   'sftp.status.ready': 'Ready',
   'sftp.transfers': 'Transfers',
   'sftp.transfers.active': '{count} active',
   'sftp.transfers.clearCompleted': 'Clear completed',
+  'sftp.transfers.calculatingTotal': 'Calculating total size...',
+  'sftp.transfers.filesCount': '{count} files',
+  'sftp.transfers.filesProgress': '{current}/{total} files',
+  'sftp.transfers.expandChildren': 'Show files',
+  'sftp.transfers.collapseChildren': 'Hide files',
+  'sftp.transfers.expandChildList': 'Show detail',
+  'sftp.transfers.collapseChildList': 'Hide',
+  'sftp.transfers.dragToResize': 'Drag to resize',
   'sftp.goUp': 'Go up',
   'sftp.goToTerminalCwd': 'Go to terminal directory',
   'sftp.encoding.label': 'Filename Encoding',
@@ -634,6 +699,9 @@ const en: Messages = {
   'sftp.deleteConfirm.single': 'Delete "{name}"?',
   'sftp.deleteConfirm.title': 'Delete {count} item(s)?',
   'sftp.deleteConfirm.desc': 'This action cannot be undone. The following will be deleted:',
+  'sftp.deleteConfirm.descSingle': 'This action cannot be undone.',
+  'sftp.deleteConfirm.host': 'Host',
+  'sftp.deleteConfirm.path': 'Path',
   'sftp.error.loadFailed': 'Failed to load directory',
   'sftp.error.downloadFailed': 'Download failed',
   'sftp.error.uploadFailed': 'Upload failed',
@@ -688,6 +756,7 @@ const en: Messages = {
   'sftp.upload.phase.compressed': 'Compressed',
 
   // SFTP File Opener
+  'sftp.context.copyPath': 'Copy file path',
   'sftp.context.openWith': 'Open with...',
   'sftp.context.edit': 'Edit',
   'sftp.context.preview': 'Preview',
@@ -724,6 +793,15 @@ const en: Messages = {
 
   // Settings > SFTP File Associations
   'settings.tab.sftpFileAssociations': 'SFTP',
+  'settings.sftp.transferConcurrency': 'Transfer Concurrency',
+  'settings.sftp.transferConcurrency.desc': 'Number of files to transfer in parallel when uploading or downloading folders. Higher values may improve speed but can overwhelm some servers.',
+  'settings.sftp.defaultOpener': 'Default File Opener',
+  'settings.sftp.defaultOpener.desc': 'Choose the default application for opening files without a specific file association',
+  'settings.sftp.defaultOpener.ask': 'Always ask',
+  'settings.sftp.defaultOpener.askDesc': 'Show a dialog to choose an application each time',
+  'settings.sftp.defaultOpener.builtInDesc': 'Open text files in the built-in editor by default',
+  'settings.sftp.defaultOpener.systemApp': 'Choose Application...',
+  'settings.sftp.defaultOpener.systemAppDesc': 'Open files with a specific application by default',
   'settings.sftpFileAssociations.title': 'SFTP File Associations',
   'settings.sftpFileAssociations.desc': 'Configure default applications for opening files by extension',
   'settings.sftpFileAssociations.extension': 'Extension',
@@ -752,6 +830,13 @@ const en: Messages = {
   'settings.sftp.autoOpenSidebar.enable': 'Enable auto-open sidebar',
   'settings.sftp.autoOpenSidebar.enableDesc': 'The SFTP sidebar will open automatically when a terminal session connects to a remote host',
 
+  'settings.sftp.defaultViewMode': 'Default View Mode',
+  'settings.sftp.defaultViewMode.desc': 'Choose the default view mode when opening a new SFTP tab. Per-host preferences override this setting.',
+  'settings.sftp.defaultViewMode.list': 'List View',
+  'settings.sftp.defaultViewMode.listDesc': 'Display files in a flat list for the current directory',
+  'settings.sftp.defaultViewMode.tree': 'Tree View',
+  'settings.sftp.defaultViewMode.treeDesc': 'Display files in a hierarchical tree structure',
+
   'sftp.autoSync.success': 'File synced to remote: {fileName}',
   'sftp.autoSync.error': 'Failed to sync file: {error}',
 
@@ -839,6 +924,29 @@ const en: Messages = {
   'hostDetails.section.credentials': 'Credentials',
   'hostDetails.section.portCredentials': 'Port & Credentials',
   'hostDetails.section.appearance': 'Appearance',
+  'hostDetails.distro.title': 'Linux Distribution',
+  'hostDetails.distro.desc': 'Auto-detect on connect, or override the distro icon manually.',
+  'hostDetails.distro.mode': 'Source',
+  'hostDetails.distro.mode.auto': 'Auto-detect',
+  'hostDetails.distro.mode.manual': 'Manual override',
+  'hostDetails.distro.detectedLabel': 'Current',
+  'hostDetails.distro.manualLabel': 'Override',
+  'hostDetails.distro.pending': 'Detect after first connection',
+  'hostDetails.distro.unknown': 'Unknown',
+  'hostDetails.distro.option.linux': 'Generic Linux',
+  'hostDetails.distro.option.ubuntu': 'Ubuntu',
+  'hostDetails.distro.option.debian': 'Debian',
+  'hostDetails.distro.option.centos': 'CentOS',
+  'hostDetails.distro.option.rocky': 'Rocky Linux',
+  'hostDetails.distro.option.fedora': 'Fedora',
+  'hostDetails.distro.option.arch': 'Arch Linux',
+  'hostDetails.distro.option.alpine': 'Alpine',
+  'hostDetails.distro.option.amazon': 'Amazon Linux',
+  'hostDetails.distro.option.opensuse': 'openSUSE / SLES',
+  'hostDetails.distro.option.redhat': 'Red Hat / RHEL',
+  'hostDetails.distro.option.almalinux': 'AlmaLinux',
+  'hostDetails.distro.option.oracle': 'Oracle Linux',
+  'hostDetails.distro.option.kali': 'Kali Linux',
   'hostDetails.section.mosh': 'Mosh',
   'hostDetails.username.placeholder': 'Username',
   'hostDetails.password.placeholder': 'Password',
@@ -847,9 +955,12 @@ const en: Messages = {
   'hostDetails.password.save': 'Save password',
   'hostDetails.identity.suggestions': 'Identities',
   'hostDetails.identity.missing': 'Identity not found',
-  'hostDetails.credential.keyCertificate': 'Key, Certificate',
+  'hostDetails.credential.keyCertificate': 'Key, Certificate, Local Key File',
   'hostDetails.credential.key': 'Key',
   'hostDetails.credential.certificate': 'Certificate',
+  'hostDetails.credential.localKeyFile': 'Local Key File',
+  'hostDetails.credential.localKeyFilePlaceholder': '~/.ssh/id_ed25519',
+  'hostDetails.credential.browseKeyFile': 'Browse...',
   'hostDetails.credential.missing': 'Credential not found',
   'hostDetails.keys.search': 'Search keys...',
   'hostDetails.keys.empty': 'No keys available',
@@ -860,6 +971,10 @@ const en: Messages = {
   'hostDetails.agentForwarding.agentNotRunning': 'SSH Agent is not available',
   'hostDetails.agentForwarding.agentNotRunningHint': 'No SSH agent detected. Enable OpenSSH Authentication Agent in Windows Services, or use a compatible agent such as Bitwarden, 1Password, or gpg-agent.',
   'hostDetails.section.agentForwarding': 'SSH Agent',
+  'hostDetails.section.deviceType': 'Device Type',
+  'hostDetails.deviceType': 'Network Device Mode',
+  'hostDetails.deviceType.desc': 'Enable for network equipment (switches, routers, firewalls) connected via SSH. Commands are sent as-is without shell wrapping, compatible with vendor CLIs like Huawei VRP and Cisco IOS.',
+  'hostDetails.deviceType.warning': 'AI agent commands will be sent directly without exit code tracking. Only enable for devices that do not run a standard shell.',
   'hostDetails.section.legacyAlgorithms': 'Legacy Algorithms',
   'hostDetails.legacyAlgorithms': 'Allow Legacy Algorithms',
   'hostDetails.legacyAlgorithms.desc': 'Enable deprecated SSH algorithms (diffie-hellman-group1, ssh-dss, 3des-cbc, etc.) for connecting to older network equipment.',
@@ -1055,6 +1170,7 @@ const en: Messages = {
   'terminal.progress.disconnected': 'Disconnected',
   'terminal.progress.cancelling': 'Cancelling...',
   'terminal.progress.startOver': 'Start over',
+  'terminal.connection.dismissDisconnectedDialog': 'Dismiss disconnected notice',
   'terminal.connection.chainOf': 'Chain {current} of {total}',
   'terminal.connection.showLogs': 'Show logs',
   'terminal.connection.hideLogs': 'Hide logs',
@@ -1067,6 +1183,8 @@ const en: Messages = {
   'terminal.themeModal.tab.theme': 'Theme',
   'terminal.themeModal.tab.font': 'Font',
   'terminal.themeModal.tab.custom': 'Custom',
+  'terminal.themeModal.globalTheme': 'Global Theme',
+  'terminal.themeModal.globalFont': 'Global Font',
   'terminal.themeModal.fontSize': 'Font Size',
   'terminal.themeModal.livePreview': 'Live Preview',
   'terminal.themeModal.themeType': '{type} theme',
@@ -1465,6 +1583,7 @@ const en: Messages = {
   'serial.field.localEchoDesc': 'Echo typed characters locally (for devices without remote echo)',
   'serial.field.lineMode': 'Line Mode',
   'serial.field.lineModeDesc': 'Buffer input and send on Enter (instead of character-by-character)',
+  'serial.field.charset': 'Charset',
   'serial.connectionError': 'Failed to connect to serial port',
   'serial.field.baudRatePlaceholder': 'Select or enter baud rate...',
   'serial.field.baudRateEmpty': 'Enter a custom baud rate',
@@ -1531,6 +1650,10 @@ const en: Messages = {
   'ai.providers.noMatchingModels': 'No matching models',
   'ai.providers.clickToLoadModels': 'Click to load models',
   'ai.providers.showingModels': 'Showing first 100 of {count} models. Type to filter.',
+  'ai.providers.advancedParams': 'Advanced Parameters',
+  'ai.providers.advancedParams.hint': 'Leave blank to use provider defaults.',
+  'ai.providers.advancedParams.maxTokens.placeholder': 'e.g. 4096',
+  'ai.providers.advancedParams.default': 'Provider default',
 
   // AI Codex
   'ai.codex': 'Codex',
@@ -1555,7 +1678,7 @@ const en: Messages = {
 
   // AI Claude Code
   'ai.claude.title': 'Claude Code',
-  'ai.claude.description': "Anthropic's agentic coding assistant. Uses claude-code-acp for ACP protocol streaming.",
+  'ai.claude.description': "Anthropic's agentic coding assistant. Uses claude-agent-acp for ACP protocol streaming.",
   'ai.claude.detecting': 'Detecting...',
   'ai.claude.detected': 'Detected',
   'ai.claude.notFound': 'Not found',
@@ -1564,6 +1687,17 @@ const en: Messages = {
   'ai.claude.customPathPlaceholder': 'e.g. /usr/local/bin/claude',
   'ai.claude.check': 'Check',
 
+  // AI GitHub Copilot CLI
+  'ai.copilot.title': 'GitHub Copilot CLI',
+  'ai.copilot.description': 'Uses GitHub Copilot CLI via ACP over stdio (`copilot --acp --stdio`). Once detected, it can be selected as an external coding agent.',
+  'ai.copilot.detecting': 'Detecting...',
+  'ai.copilot.detected': 'Detected',
+  'ai.copilot.notFound': 'Not found',
+  'ai.copilot.path': 'Path:',
+  'ai.copilot.notFoundHint': 'Could not find copilot in PATH. Install it or specify the executable path below.',
+  'ai.copilot.customPathPlaceholder': 'e.g. /usr/local/bin/copilot',
+  'ai.copilot.check': 'Check',
+
   // AI Default Agent
   'ai.defaultAgent': 'Default Agent',
   'ai.defaultAgent.description': 'Agent to use when starting a new AI session',
@@ -1572,7 +1706,6 @@ const en: Messages = {
   // AI Chat
   'ai.chat.noProvider': 'No AI provider is configured. Go to **Settings → AI → Providers** to add and enable a provider.',
   'ai.chat.toolDenied': 'Action was rejected by the user.',
-  'ai.chat.toolApprovalTitle': 'Permission Required',
   'ai.chat.toolApproved': 'Approved',
   'ai.chat.toolApprovalHint': 'Press Enter to approve, Escape to reject',
   'ai.chat.approve': 'Approve',

application/i18n/locales/zh-CN.ts

@@ -5,6 +5,9 @@ const zhCN: Messages = {
   'common.save': '保存',
   'common.cancel': '取消',
   'common.close': '关闭',
+  'common.reset': '重置',
+  'common.zoomIn': '放大',
+  'common.zoomOut': '缩小',
   'common.settings': '设置',
   'common.search': '搜索',
   'common.connect': '连接',
@@ -20,6 +23,7 @@ const zhCN: Messages = {
   'common.back': '返回',
   'common.apply': '应用',
   'common.use': '使用',
+  'common.useGlobal': '跟随全局',
   'common.left': '左侧',
   'common.right': '右侧',
   'common.more': '更多',
@@ -79,6 +83,21 @@ const zhCN: Messages = {
   'settings.system.credentials.unavailableHint': '在其他用户或机器上加密的凭据无法在此处解密。请在当前设备重新输入并保存凭据。',
   'settings.system.credentials.portabilityHint': '云同步可跨设备，因为使用主密钥加密；本地 safeStorage 加密仅绑定当前系统用户/设备。',
 
+  // Settings > System > Crash Logs
+  'settings.system.crashLogs.title': '崩溃日志',
+  'settings.system.crashLogs.description': '查看主进程错误日志，帮助诊断异常行为。',
+  'settings.system.crashLogs.noLogs': '未找到崩溃日志。',
+  'settings.system.crashLogs.entries': '{count} 条记录',
+  'settings.system.crashLogs.clear': '清除所有日志',
+  'settings.system.crashLogs.cleared': '已清除 {count} 个日志文件。',
+  'settings.system.crashLogs.source': '来源',
+  'settings.system.crashLogs.time': '时间',
+  'settings.system.crashLogs.message': '消息',
+  'settings.system.crashLogs.stack': '堆栈跟踪',
+  'settings.system.crashLogs.hint': '崩溃日志保留 30 天，超期自动清理。',
+  'settings.system.crashLogs.collapse': '收起',
+  'settings.system.crashLogs.expand': '查看详情',
+
   // Settings > System > Software Update
   'settings.update.title': '软件更新',
   'settings.update.currentVersion': '当前版本',
@@ -196,6 +215,9 @@ const zhCN: Messages = {
   'settings.appearance.themeColor.desc': '为浅色与深色主题选择预设配色',
   'settings.appearance.themeColor.light': '浅色主题',
   'settings.appearance.themeColor.dark': '深色主题',
+  'settings.appearance.immersiveMode': '沉浸模式',
+  'settings.appearance.immersiveMode.desc':
+    '启用后，UI 外观（标签栏、侧边栏、状态栏）会自动适配当前终端主题的配色，营造视觉一体化的沉浸体验。',
   'settings.appearance.customCss': '自定义 CSS',
   'settings.appearance.customCss.desc': '使用自定义 CSS 个性化界面，修改会立即生效。',
   'settings.appearance.customCss.placeholder':
@@ -406,6 +428,8 @@ const zhCN: Messages = {
   'sftp.filter.placeholder': '按文件名筛选...',
   'sftp.bookmark.add': '收藏此路径',
   'sftp.bookmark.remove': '取消收藏',
+  'sftp.bookmark.addGlobal': '+全局',
+  'sftp.bookmark.addGlobalTooltip': '保存为全局收藏（所有主机共享）',
   'sftp.bookmark.empty': '暂无收藏路径',
   'sftp.columns.name': '名称',
   'sftp.columns.modified': '修改时间',
@@ -422,8 +446,21 @@ const zhCN: Messages = {
   'sftp.dragDropToUpload': '拖拽文件到这里上传',
   'sftp.retry': '重试',
   'sftp.context.open': '打开',
+  'sftp.context.navigateTo': '跳转到这里',
+  'sftp.context.moveTo': '移动到...',
+  'sftp.context.moveToParent': '移动到上级目录',
+  'sftp.moveTo.title': '移动到目录',
+  'sftp.moveTo.placeholder': '输入目标目录路径',
+  'sftp.moveTo.confirm': '移动',
+  'sftp.moveTo.pathNotFound': '目录不存在或无法访问',
   'sftp.context.download': '下载',
   'sftp.context.copyToOtherPane': '复制到另一侧',
+  'sftp.viewMode.label': '视图模式',
+  'sftp.viewMode.list': '列表视图',
+  'sftp.viewMode.tree': '树形视图',
+  'sftp.tree.loadError': '加载目录失败',
+  'sftp.tree.loading': '加载中...',
+  'sftp.kind.folder': '文件夹',
   'sftp.context.rename': '重命名',
   'sftp.context.permissions': '权限',
   'sftp.context.delete': '删除',
@@ -436,12 +473,21 @@ const zhCN: Messages = {
   'sftp.path.doubleClickToEdit': '双击编辑路径',
   'sftp.showHiddenPaths': '隐藏的路径',
   'sftp.task.waiting': '等待中...',
+  'sftp.transfer.preparing': '准备中...',
   'sftp.status.loading': '加载中...',
   'sftp.status.uploading': '上传中...',
   'sftp.status.ready': '就绪',
   'sftp.transfers': '传输',
   'sftp.transfers.active': '{count} 个进行中',
   'sftp.transfers.clearCompleted': '清除已完成',
+  'sftp.transfers.calculatingTotal': '正在统计总大小...',
+  'sftp.transfers.filesCount': '{count} 个文件',
+  'sftp.transfers.filesProgress': '{current}/{total} 个文件',
+  'sftp.transfers.expandChildren': '展开文件',
+  'sftp.transfers.collapseChildren': '收起文件',
+  'sftp.transfers.expandChildList': '展开详情',
+  'sftp.transfers.collapseChildList': '收起',
+  'sftp.transfers.dragToResize': '拖拽调整高度',
   'sftp.goUp': '上一级',
   'sftp.goToTerminalCwd': '定位到终端当前目录',
   'sftp.encoding.label': '文件名编码',
@@ -461,6 +507,9 @@ const zhCN: Messages = {
   'sftp.deleteConfirm.single': '删除 "{name}"？',
   'sftp.deleteConfirm.title': '删除 {count} 个项目？',
   'sftp.deleteConfirm.desc': '此操作不可撤销，将删除以下内容：',
+  'sftp.deleteConfirm.descSingle': '此操作不可撤销。',
+  'sftp.deleteConfirm.host': '主机',
+  'sftp.deleteConfirm.path': '路径',
   'sftp.error.loadFailed': '加载目录失败',
   'sftp.error.downloadFailed': '下载失败',
   'sftp.error.uploadFailed': '上传失败',
@@ -531,6 +580,29 @@ const zhCN: Messages = {
   'hostDetails.section.credentials': '凭据',
   'hostDetails.section.portCredentials': '端口与凭据',
   'hostDetails.section.appearance': '外观',
+  'hostDetails.distro.title': 'Linux 发行版',
+  'hostDetails.distro.desc': '可在连接后自动探测，也可以手动覆盖图标所用的发行版。',
+  'hostDetails.distro.mode': '来源',
+  'hostDetails.distro.mode.auto': '自动探测',
+  'hostDetails.distro.mode.manual': '手动覆盖',
+  'hostDetails.distro.detectedLabel': '当前值',
+  'hostDetails.distro.manualLabel': '手动指定',
+  'hostDetails.distro.pending': '首次连接后自动探测',
+  'hostDetails.distro.unknown': '未知',
+  'hostDetails.distro.option.linux': '通用 Linux',
+  'hostDetails.distro.option.ubuntu': 'Ubuntu',
+  'hostDetails.distro.option.debian': 'Debian',
+  'hostDetails.distro.option.centos': 'CentOS',
+  'hostDetails.distro.option.rocky': 'Rocky Linux',
+  'hostDetails.distro.option.fedora': 'Fedora',
+  'hostDetails.distro.option.arch': 'Arch Linux',
+  'hostDetails.distro.option.alpine': 'Alpine',
+  'hostDetails.distro.option.amazon': 'Amazon Linux',
+  'hostDetails.distro.option.opensuse': 'openSUSE / SLES',
+  'hostDetails.distro.option.redhat': 'Red Hat / RHEL',
+  'hostDetails.distro.option.almalinux': 'AlmaLinux',
+  'hostDetails.distro.option.oracle': 'Oracle Linux',
+  'hostDetails.distro.option.kali': 'Kali Linux',
   'hostDetails.section.mosh': 'Mosh',
   'hostDetails.username.placeholder': '用户名',
   'hostDetails.password.placeholder': '密码',
@@ -539,9 +611,12 @@ const zhCN: Messages = {
   'hostDetails.password.save': '保存密码',
   'hostDetails.identity.suggestions': '身份',
   'hostDetails.identity.missing': '身份不存在',
-  'hostDetails.credential.keyCertificate': '密钥 / 证书',
+  'hostDetails.credential.keyCertificate': '密钥 / 证书 / 本地密钥',
   'hostDetails.credential.key': '密钥',
   'hostDetails.credential.certificate': '证书',
+  'hostDetails.credential.localKeyFile': '本地密钥文件',
+  'hostDetails.credential.localKeyFilePlaceholder': '~/.ssh/id_ed25519',
+  'hostDetails.credential.browseKeyFile': '浏览…',
   'hostDetails.credential.missing': '凭据不存在',
   'hostDetails.keys.search': '搜索密钥…',
   'hostDetails.keys.empty': '暂无密钥',
@@ -552,6 +627,10 @@ const zhCN: Messages = {
   'hostDetails.agentForwarding.agentNotRunning': 'SSH Agent 不可用',
   'hostDetails.agentForwarding.agentNotRunningHint': '未检测到 SSH Agent。请启用 Windows OpenSSH Authentication Agent 服务，或使用兼容的 Agent（如 Bitwarden、1Password、gpg-agent）。',
   'hostDetails.section.agentForwarding': 'SSH 代理',
+  'hostDetails.section.deviceType': '设备类型',
+  'hostDetails.deviceType': '网络设备模式',
+  'hostDetails.deviceType.desc': '适用于通过 SSH 连接的网络设备（交换机、路由器、防火墙）。命令将原样发送，不进行 Shell 包装，兼容华为 VRP、Cisco IOS 等厂商 CLI。',
+  'hostDetails.deviceType.warning': 'AI 代理命令将直接发送，无法获取退出码。仅建议在设备不运行标准 Shell 时启用。',
   'hostDetails.section.legacyAlgorithms': '旧版算法',
   'hostDetails.legacyAlgorithms': '允许旧版算法',
   'hostDetails.legacyAlgorithms.desc': '启用已弃用的 SSH 算法（diffie-hellman-group1、ssh-dss、3des-cbc 等）以连接老旧网络设备。',
@@ -719,6 +798,7 @@ const zhCN: Messages = {
   'terminal.progress.disconnected': '已断开',
   'terminal.progress.cancelling': '正在取消...',
   'terminal.progress.startOver': '重新开始',
+  'terminal.connection.dismissDisconnectedDialog': '关闭断连提示',
   'terminal.connection.chainOf': 'Chain {current} / {total}',
   'terminal.connection.showLogs': '显示日志',
   'terminal.connection.hideLogs': '隐藏日志',
@@ -731,6 +811,8 @@ const zhCN: Messages = {
   'terminal.themeModal.tab.theme': '主题',
   'terminal.themeModal.tab.font': '字体',
   'terminal.themeModal.tab.custom': '自定义',
+  'terminal.themeModal.globalTheme': '全局主题',
+  'terminal.themeModal.globalFont': '全局字体',
   'terminal.themeModal.fontSize': '字体大小',
   'terminal.themeModal.livePreview': '实时预览',
   'terminal.themeModal.themeType': '{type} 主题',
@@ -1003,6 +1085,7 @@ const zhCN: Messages = {
   'sftp.upload.phase.compressed': '压缩传输',
 
   // SFTP File Opener
+  'sftp.context.copyPath': '复制文件路径',
   'sftp.context.openWith': '打开方式...',
   'sftp.context.edit': '编辑',
   'sftp.context.preview': '预览',
@@ -1039,6 +1122,15 @@ const zhCN: Messages = {
 
   // Settings > SFTP File Associations
   'settings.tab.sftpFileAssociations': 'SFTP',
+  'settings.sftp.transferConcurrency': '传输并发数',
+  'settings.sftp.transferConcurrency.desc': '上传或下载文件夹时并行传输的文件数量。较高的值可能提高速度，但可能导致某些服务器过载。',
+  'settings.sftp.defaultOpener': '默认文件打开方式',
+  'settings.sftp.defaultOpener.desc': '选择没有特定文件关联时的默认打开方式',
+  'settings.sftp.defaultOpener.ask': '每次询问',
+  'settings.sftp.defaultOpener.askDesc': '每次打开文件时弹出选择对话框',
+  'settings.sftp.defaultOpener.builtInDesc': '默认使用内置编辑器打开文本文件',
+  'settings.sftp.defaultOpener.systemApp': '选择应用程序...',
+  'settings.sftp.defaultOpener.systemAppDesc': '默认使用指定的外部应用程序打开文件',
   'settings.sftpFileAssociations.title': 'SFTP 文件关联',
   'settings.sftpFileAssociations.desc': '配置按扩展名打开文件的默认应用程序',
   'settings.sftpFileAssociations.extension': '扩展名',
@@ -1067,6 +1159,13 @@ const zhCN: Messages = {
   'settings.sftp.autoOpenSidebar.enable': '启用自动打开侧栏',
   'settings.sftp.autoOpenSidebar.enableDesc': '当终端会话连接到远程主机时，SFTP 侧栏将自动打开',
 
+  'settings.sftp.defaultViewMode': '默认视图模式',
+  'settings.sftp.defaultViewMode.desc': '选择打开新 SFTP 标签页时的默认视图模式。每个主机的偏好设置会覆盖此全局设置。',
+  'settings.sftp.defaultViewMode.list': '列表视图',
+  'settings.sftp.defaultViewMode.listDesc': '以平面列表显示当前目录的文件',
+  'settings.sftp.defaultViewMode.tree': '树形视图',
+  'settings.sftp.defaultViewMode.treeDesc': '以层级树形结构显示文件',
+
   'sftp.autoSync.success': '文件已同步到远程：{fileName}',
   'sftp.autoSync.error': '同步文件失败：{error}',
 
@@ -1172,6 +1271,8 @@ const zhCN: Messages = {
   'settings.terminal.behavior.scrollOnKeyPress.desc': '按键（例如 Enter）时将终端滚动到底部',
   'settings.terminal.behavior.scrollOnPaste': '粘贴时自动滚动',
   'settings.terminal.behavior.scrollOnPaste.desc': '粘贴文本时将终端滚动到底部',
+  'settings.terminal.behavior.smoothScrolling': '平滑滚动',
+  'settings.terminal.behavior.smoothScrolling.desc': '滚动终端视口时使用平滑动画',
   'settings.terminal.behavior.linkModifier': '链接修饰键',
   'settings.terminal.behavior.linkModifier.desc': '按住此键再点击终端中的链接',
   'settings.terminal.behavior.linkModifier.none': '无（直接点击）',
@@ -1210,6 +1311,15 @@ const zhCN: Messages = {
   'settings.terminal.rendering.renderer.desc': '选择终端渲染技术。自动模式会在低内存设备上使用 Canvas。更改将在新终端会话中生效。',
   'settings.terminal.rendering.auto': '自动',
 
+  // Settings > Terminal > Autocomplete
+  'settings.terminal.section.autocomplete': '自动补全',
+  'settings.terminal.autocomplete.enabled': '启用自动补全',
+  'settings.terminal.autocomplete.enabled.desc': '输入时根据历史命令和命令规范显示补全建议。',
+  'settings.terminal.autocomplete.ghostText': '行内建议',
+  'settings.terminal.autocomplete.ghostText.desc': '在光标后显示灰色的建议文本（类似 fish shell）。',
+  'settings.terminal.autocomplete.popupMenu': '弹出菜单',
+  'settings.terminal.autocomplete.popupMenu.desc': '显示包含多个建议的浮动列表。',
+
   // Settings > Shortcuts
   'settings.shortcuts.section.scheme': '快捷键方案',
   'settings.shortcuts.scheme.label': '键盘快捷键',
@@ -1480,6 +1590,7 @@ const zhCN: Messages = {
   'serial.field.localEchoDesc': '本地回显输入字符（用于没有远程回显的设备）',
   'serial.field.lineMode': '行模式',
   'serial.field.lineModeDesc': '缓冲输入，按回车后发送（而不是逐字符发送）',
+  'serial.field.charset': '字符编码',
   'serial.connectionError': '连接串口失败',
   'serial.field.baudRatePlaceholder': '选择或输入波特率...',
   'serial.field.baudRateEmpty': '输入自定义波特率',
@@ -1546,6 +1657,10 @@ const zhCN: Messages = {
   'ai.providers.noMatchingModels': '没有匹配的模型',
   'ai.providers.clickToLoadModels': '点击加载模型',
   'ai.providers.showingModels': '显示前 100 个，共 {count} 个模型。输入以筛选。',
+  'ai.providers.advancedParams': '高级参数',
+  'ai.providers.advancedParams.hint': '留空则使用提供商默认值。',
+  'ai.providers.advancedParams.maxTokens.placeholder': '例如 4096',
+  'ai.providers.advancedParams.default': '提供商默认',
 
   // AI Codex
   'ai.codex': 'Codex',
@@ -1570,7 +1685,7 @@ const zhCN: Messages = {
 
   // AI Claude Code
   'ai.claude.title': 'Claude Code',
-  'ai.claude.description': 'Anthropic 的智能编程助手。使用 claude-code-acp 进行 ACP 协议流式传输。',
+  'ai.claude.description': 'Anthropic 的智能编程助手。使用 claude-agent-acp 进行 ACP 协议流式传输。',
   'ai.claude.detecting': '检测中...',
   'ai.claude.detected': '已检测到',
   'ai.claude.notFound': '未找到',
@@ -1579,6 +1694,17 @@ const zhCN: Messages = {
   'ai.claude.customPathPlaceholder': '例如 /usr/local/bin/claude',
   'ai.claude.check': '检查',
 
+  // AI GitHub Copilot CLI
+  'ai.copilot.title': 'GitHub Copilot CLI',
+  'ai.copilot.description': '通过 ACP over stdio（`copilot --acp --stdio`）接入 GitHub Copilot CLI。检测到后即可作为外部编程 Agent 使用。',
+  'ai.copilot.detecting': '检测中...',
+  'ai.copilot.detected': '已检测到',
+  'ai.copilot.notFound': '未找到',
+  'ai.copilot.path': '路径：',
+  'ai.copilot.notFoundHint': '在 PATH 中未找到 copilot。请安装或在下方指定可执行文件路径。',
+  'ai.copilot.customPathPlaceholder': '例如 /usr/local/bin/copilot',
+  'ai.copilot.check': '检查',
+
   // AI Default Agent
   'ai.defaultAgent': '默认 Agent',
   'ai.defaultAgent.description': '创建新 AI 会话时使用的 Agent',
@@ -1587,7 +1713,6 @@ const zhCN: Messages = {
   // AI Chat
   'ai.chat.noProvider': '尚未配置 AI 提供商。请前往 **设置 → AI → 提供商** 添加并启用一个提供商。',
   'ai.chat.toolDenied': '操作已被用户拒绝。',
-  'ai.chat.toolApprovalTitle': '需要权限确认',
   'ai.chat.toolApproved': '已批准',
   'ai.chat.toolApprovalHint': '按回车批准，按 Esc 拒绝',
   'ai.chat.approve': '批准',

application/notification.ts

@@ -0,0 +1,38 @@
+/**
+ * Application-layer notification port.
+ *
+ * UI layers (e.g. toast) register their implementation via `setNotify`.
+ * Application code calls `notify.*` without importing any UI module.
+ */
+
+export interface NotifyOptions {
+  title?: string;
+  duration?: number;
+  onClick?: () => void;
+  actionLabel?: string;
+}
+
+type NotifyFn = (message: string, titleOrOptions?: string | NotifyOptions) => void;
+
+interface Notify {
+  success: NotifyFn;
+  error: NotifyFn;
+  warning: NotifyFn;
+  info: NotifyFn;
+}
+
+const noop: NotifyFn = () => {};
+
+let _impl: Notify = { success: noop, error: noop, warning: noop, info: noop };
+
+/** Called once by the UI layer to wire up the real implementation. */
+export function setNotify(impl: Notify): void {
+  _impl = impl;
+}
+
+export const notify: Notify = {
+  success: (...args) => _impl.success(...args),
+  error: (...args) => _impl.error(...args),
+  warning: (...args) => _impl.warning(...args),
+  info: (...args) => _impl.info(...args),
+};

application/state/activeTabStore.ts

@@ -6,6 +6,7 @@ type Listener = () => void;
 class ActiveTabStore {
   private activeTabId: string = 'vault';
   private listeners = new Set<Listener>();
+  private pendingNotify = false;
 
   getActiveTabId = () => this.activeTabId;
 
@@ -13,7 +14,10 @@ class ActiveTabStore {
     if (this.activeTabId !== id) {
       this.activeTabId = id;
       // Defer listener notification to avoid "setState during render" if called from a render phase
+      if (this.pendingNotify) return;
+      this.pendingNotify = true;
       Promise.resolve().then(() => {
+        this.pendingNotify = false;
         this.listeners.forEach(listener => listener());
       });
     }

application/state/sessionActivity.ts

@@ -0,0 +1,46 @@
+import { TerminalSession } from '../../types';
+
+type SessionActivityMap = Record<string, boolean>;
+
+export const getValidSessionActivityIds = (sessions: TerminalSession[]): Set<string> => {
+  return new Set(sessions.map((session) => session.id));
+};
+
+export const shouldMarkSessionActivity = (
+  activeTabId: string | null,
+  session: Pick<TerminalSession, 'id' | 'workspaceId'>,
+): boolean => {
+  return activeTabId !== session.id && activeTabId !== session.workspaceId;
+};
+
+export const getSessionActivityIdsToClear = (
+  activeTabId: string | null,
+  sessions: TerminalSession[],
+): string[] => {
+  if (!activeTabId || activeTabId === 'vault' || activeTabId === 'sftp') {
+    return [];
+  }
+
+  const activeSession = sessions.find((session) => session.id === activeTabId);
+  if (activeSession) {
+    return [activeSession.id];
+  }
+
+  return sessions
+    .filter((session) => session.workspaceId === activeTabId)
+    .map((session) => session.id);
+};
+
+export const buildWorkspaceActivityMap = (
+  sessions: TerminalSession[],
+  sessionActivityMap: SessionActivityMap,
+): Map<string, boolean> => {
+  const workspaceActivityMap = new Map<string, boolean>();
+
+  for (const session of sessions) {
+    if (!session.workspaceId || !sessionActivityMap[session.id]) continue;
+    workspaceActivityMap.set(session.workspaceId, true);
+  }
+
+  return workspaceActivityMap;
+};

application/state/sessionActivityStore.ts

@@ -0,0 +1,78 @@
+import { useSyncExternalStore } from 'react';
+
+type Listener = () => void;
+
+class SessionActivityStore {
+  private snapshot: Record<string, boolean> = {};
+  private listeners = new Set<Listener>();
+
+  getSnapshot = () => this.snapshot;
+
+  subscribe = (listener: Listener) => {
+    this.listeners.add(listener);
+    return () => this.listeners.delete(listener);
+  };
+
+  private emit() {
+    this.listeners.forEach((listener) => listener());
+  }
+
+  setTabActive = (tabId: string, hasActivity: boolean) => {
+    const alreadyActive = !!this.snapshot[tabId];
+    if (alreadyActive === hasActivity) return;
+
+    if (hasActivity) {
+      this.snapshot = { ...this.snapshot, [tabId]: true };
+    } else {
+      const { [tabId]: _removed, ...rest } = this.snapshot;
+      this.snapshot = rest;
+    }
+
+    this.emit();
+  };
+
+  clearTab = (tabId: string) => {
+    this.setTabActive(tabId, false);
+  };
+
+  clearTabs = (tabIds: Iterable<string>) => {
+    let changed = false;
+    const next = { ...this.snapshot };
+
+    for (const tabId of tabIds) {
+      if (!next[tabId]) continue;
+      delete next[tabId];
+      changed = true;
+    }
+
+    if (!changed) return;
+    this.snapshot = next;
+    this.emit();
+  };
+
+  prune = (validTabIds: Set<string>) => {
+    let changed = false;
+    const next: Record<string, boolean> = {};
+
+    for (const tabId of Object.keys(this.snapshot)) {
+      if (validTabIds.has(tabId)) {
+        next[tabId] = true;
+      } else {
+        changed = true;
+      }
+    }
+
+    if (!changed) return;
+    this.snapshot = next;
+    this.emit();
+  };
+}
+
+export const sessionActivityStore = new SessionActivityStore();
+
+export const useSessionActivityMap = () => {
+  return useSyncExternalStore(
+    sessionActivityStore.subscribe,
+    sessionActivityStore.getSnapshot,
+  );
+};

application/state/sftp/types.ts

@@ -7,10 +7,12 @@ export interface SftpPane {
   loading: boolean;
   reconnecting: boolean;
   error: string | null;
+  connectionLogs: string[];
   selectedFiles: Set<string>;
   filter: string;
   filenameEncoding: SftpFilenameEncoding;
   showHiddenFiles: boolean;
+  transferMutationToken: number;
 }
 
 // Multi-tab state for left and right sides
@@ -33,10 +35,12 @@ export const createEmptyPane = (
   loading: false,
   reconnecting: false,
   error: null,
+  connectionLogs: [],
   selectedFiles: new Set(),
   filter: "",
   filenameEncoding: "auto",
   showHiddenFiles,
+  transferMutationToken: 0,
 });
 
 // File watch event types

application/state/sftp/useSftpConnections.ts

@@ -34,7 +34,7 @@ interface UseSftpConnectionsParams {
 }
 
 interface UseSftpConnectionsResult {
-  connect: (side: "left" | "right", host: Host | "local", options?: { forceNewTab?: boolean }) => Promise<void>;
+  connect: (side: "left" | "right", host: Host | "local", options?: { forceNewTab?: boolean; onTabCreated?: (tabId: string) => void }) => Promise<void>;
   disconnect: (side: "left" | "right") => Promise<void>;
   listLocalFiles: (path: string) => Promise<SftpFileEntry[]>;
   listRemoteFiles: (sftpId: string, path: string, encoding?: SftpFilenameEncoding) => Promise<SftpFileEntry[]>;
@@ -69,7 +69,7 @@ export const useSftpConnections = ({
   const { listLocalFiles, listRemoteFiles } = useSftpDirectoryListing();
 
   const connect = useCallback(
-    async (side: "left" | "right", host: Host | "local", options?: { forceNewTab?: boolean }) => {
+    async (side: "left" | "right", host: Host | "local", options?: { forceNewTab?: boolean; onTabCreated?: (tabId: string) => void }) => {
       const setTabs = side === "left" ? setLeftTabs : setRightTabs;
 
       let activeTabId: string | null = null;
@@ -88,6 +88,13 @@ export const useSftpConnections = ({
 
       if (!activeTabId) return;
 
+      const isReconnectAttempt = reconnectingRef.current[side];
+
+      // Notify caller of the tab ID synchronously, before any async work.
+      // This allows callers to map metadata (e.g. connection keys) to the tab
+      // immediately, avoiding race conditions with deferred effects.
+      options?.onTabCreated?.(activeTabId);
+
       const connectionId = `${side}-${Date.now()}`;
 
       navSeqRef.current[side] += 1;
@@ -118,12 +125,15 @@ export const useSftpConnections = ({
         if (currentPane?.connection && !currentPane.connection.isLocal) {
           const oldSftpId = sftpSessionsRef.current.get(currentPane.connection.id);
           if (oldSftpId) {
+            // Delete the mapping BEFORE the async closeSftp call to prevent
+            // concurrent code from using a stale sftpId that the backend may
+            // have already removed during the await.
+            sftpSessionsRef.current.delete(currentPane.connection.id);
             try {
               await netcattyBridge.get()?.closeSftp(oldSftpId);
             } catch {
               // Ignore errors when closing stale SFTP sessions
             }
-            sftpSessionsRef.current.delete(currentPane.connection.id);
           }
         }
       }
@@ -151,6 +161,7 @@ export const useSftpConnections = ({
           loading: true,
           reconnecting: false,
           error: null,
+          connectionLogs: [],
           filenameEncoding, // Reset encoding for new connection
         }));
 
@@ -205,13 +216,57 @@ export const useSftpConnections = ({
           loading: true,
           reconnecting: prev.reconnecting,
           error: null,
+          connectionLogs: [],
           files: prev.reconnecting ? prev.files : (sharedHostCache?.files ?? []),
           filenameEncoding, // Reset encoding for new connection
         }));
 
+        // Subscribe to SFTP connection progress events for auth logging
+        const sftpSessionId = `sftp-${connectionId}`;
+        let unsubSftpProgress: (() => void) | undefined;
+        const bridge = netcattyBridge.get();
+        if (bridge?.onSftpConnectionProgress) {
+          unsubSftpProgress = bridge.onSftpConnectionProgress((sid, label, status, detail) => {
+            if (sid !== sftpSessionId) return;
+            let logLine: string;
+            switch (status) {
+              case 'connecting':
+                logLine = `Connecting to ${label}...`;
+                break;
+              case 'authenticating':
+                logLine = `${label} - Key exchange complete`;
+                break;
+              case 'auth-attempt':
+                if (detail?.endsWith('rejected')) {
+                  logLine = `${label} - ✗ ${detail}`;
+                } else if (detail === 'all methods exhausted') {
+                  logLine = `${label} - ✗ All authentication methods exhausted`;
+                } else if (detail === 'waiting for user input...' || detail === 'user responded') {
+                  logLine = `${label} - ${detail}`;
+                } else {
+                  logLine = `${label} - Trying ${detail}...`;
+                }
+                break;
+              case 'connected':
+                logLine = `${label} - Connected`;
+                break;
+              case 'error':
+                logLine = `${label} - Error${detail ? `: ${detail}` : ''}`;
+                break;
+              default:
+                logLine = `${label} - ${status}${detail ? `: ${detail}` : ''}`;
+            }
+            // Only update if this is still the active request (avoids stale logs leaking)
+            if (navSeqRef.current[side] !== connectRequestId) return;
+            updateTab(side, activeTabId, (prev) => ({
+              ...prev,
+              connectionLogs: [...prev.connectionLogs, logLine],
+            }));
+          });
+        }
+
         try {
           const credentials = getHostCredentials(host);
-          const bridge = netcattyBridge.get();
           const openSftp = bridge?.openSftp;
           if (!openSftp) throw new Error("SFTP bridge unavailable");
 
@@ -270,8 +325,24 @@ export const useSftpConnections = ({
           let homeDir = sharedHostCache?.homeDir ?? startPath;
 
           if (!sharedHostCache) {
-            const statSftp = netcattyBridge.get()?.statSftp;
-            if (statSftp) {
+            // Detect home directory: SSH exec `echo ~` → SFTP realpath('.') → hardcoded fallback
+            const bridge = netcattyBridge.get();
+            let detected = false;
+
+            if (bridge?.getSftpHomeDir) {
+              try {
+                const result = await bridge.getSftpHomeDir(sftpId);
+                if (result?.success && result.homeDir) {
+                  startPath = result.homeDir;
+                  homeDir = result.homeDir;
+                  detected = true;
+                }
+              } catch {
+                // Fall through to hardcoded candidates
+              }
+            }
+
+            if (!detected) {
               const candidates: string[] = [];
               if (credentials.username === "root") {
                 candidates.push("/root");
@@ -281,63 +352,33 @@ export const useSftpConnections = ({
               } else {
                 candidates.push("/root");
               }
-              for (const candidate of candidates) {
-                try {
-                  const stat = await statSftp(sftpId, candidate, filenameEncoding);
-                  if (stat?.type === "directory") {
-                    startPath = candidate;
-                    homeDir = candidate;
-                    break;
-                  }
-                } catch {
-                  // Ignore missing/permission errors
-                }
-              }
-            } else {
-              if (credentials.username === "root") {
-                try {
-                  const rootFiles = await netcattyBridge.get()?.listSftp(sftpId, "/root", filenameEncoding);
-                  if (rootFiles) {
-                    startPath = "/root";
-                    homeDir = "/root";
-                  }
-                } catch {
-                  // Fallback path not available
-                }
-              } else if (credentials.username) {
-                try {
-                  const homeFiles = await netcattyBridge.get()?.listSftp(
-                    sftpId,
-                    `/home/${credentials.username}`,
-                    filenameEncoding,
-                  );
-                  if (homeFiles) {
-                    startPath = `/home/${credentials.username}`;
-                    homeDir = startPath;
-                  }
-                } catch {
-                  // Fall through to /root check
-                }
-                if (startPath === "/") {
+              const statSftp = bridge?.statSftp;
+              if (statSftp) {
+                for (const candidate of candidates) {
                   try {
-                    const rootFiles = await netcattyBridge.get()?.listSftp(sftpId, "/root", filenameEncoding);
-                    if (rootFiles) {
-                      startPath = "/root";
-                      homeDir = "/root";
+                    const stat = await statSftp(sftpId, candidate, filenameEncoding);
+                    if (stat?.type === "directory") {
+                      startPath = candidate;
+                      homeDir = candidate;
+                      break;
                     }
                   } catch {
-                    // Fallback path not available
+                    // Ignore missing/permission errors
                   }
                 }
               } else {
-                try {
-                  const rootFiles = await netcattyBridge.get()?.listSftp(sftpId, "/root", filenameEncoding);
-                  if (rootFiles) {
-                    startPath = "/root";
-                    homeDir = "/root";
+                // Fallback: probe candidates via listSftp when statSftp is unavailable
+                for (const candidate of candidates) {
+                  try {
+                    const files = await bridge?.listSftp(sftpId, candidate, filenameEncoding);
+                    if (files) {
+                      startPath = candidate;
+                      homeDir = candidate;
+                      break;
+                    }
+                  } catch {
+                    // Ignore missing/permission errors
                   }
-                } catch {
-                  // Fallback path not available
                 }
               }
             }
@@ -413,6 +454,7 @@ export const useSftpConnections = ({
             files,
             loading: false,
             reconnecting: false,
+            connectionLogs: [], // Clear after successful connect to avoid replay during navigation
           }));
         } catch (err) {
           if (navSeqRef.current[side] !== connectRequestId) return;
@@ -426,10 +468,16 @@ export const useSftpConnections = ({
                   error: err instanceof Error ? err.message : "Connection failed",
                 }
               : null,
-            error: err instanceof Error ? err.message : "Connection failed",
+            files: isReconnectAttempt ? [] : prev.files,
+            selectedFiles: isReconnectAttempt ? new Set<string>() : prev.selectedFiles,
+            error: isReconnectAttempt
+              ? "sftp.error.reconnectFailed"
+              : (err instanceof Error ? err.message : "Connection failed"),
             loading: false,
             reconnecting: false,
           }));
+        } finally {
+          unsubSftpProgress?.();
         }
       }
     },
@@ -454,32 +502,39 @@ export const useSftpConnections = ({
       !initialConnectDoneRef.current &&
       leftTabs.tabs.length === 0
     ) {
-      initialConnectDoneRef.current = true;
-      setTimeout(() => {
+      const timer = window.setTimeout(() => {
+        initialConnectDoneRef.current = true;
         connect("left", "local");
       }, 0);
+      return () => window.clearTimeout(timer);
     }
   }, [autoConnectLocalOnMount, connect, leftTabs.tabs.length]);
 
   useEffect(() => {
-    const attemptReconnect = async (side: "left" | "right") => {
+    const reconnectTimers: number[] = [];
+
+    const scheduleReconnect = (side: "left" | "right") => {
       const lastHost = lastConnectedHostRef.current[side];
-      if (lastHost && reconnectingRef.current[side]) {
-        await new Promise((resolve) => setTimeout(resolve, 1000));
-        if (reconnectingRef.current[side]) {
-          connect(side, lastHost);
-        }
-      }
+      if (!lastHost || !reconnectingRef.current[side]) return;
+
+      const timer = window.setTimeout(() => {
+        if (!reconnectingRef.current[side]) return;
+        void connect(side, lastHost);
+      }, 1000);
+      reconnectTimers.push(timer);
     };
 
     if (leftPane.reconnecting && reconnectingRef.current.left) {
-      attemptReconnect("left");
+      scheduleReconnect("left");
     }
     if (rightPane.reconnecting && reconnectingRef.current.right) {
-      attemptReconnect("right");
+      scheduleReconnect("right");
     }
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [leftPane.reconnecting, rightPane.reconnecting, connect]);
+
+    return () => {
+      reconnectTimers.forEach((timer) => window.clearTimeout(timer));
+    };
+  }, [leftPane.reconnecting, rightPane.reconnecting, connect, lastConnectedHostRef, reconnectingRef]);
 
   const disconnect = useCallback(
     async (side: "left" | "right") => {

application/state/sftp/useSftpDirectoryListing.ts

@@ -49,6 +49,7 @@ export const useSftpDirectoryListing = () => {
           sizeFormatted: formatFileSize(size),
           lastModified,
           lastModifiedFormatted: formatDate(lastModified),
+          permissions: f.permissions,
           linkTarget: f.linkTarget as "file" | "directory" | null | undefined,
         };
       });

application/state/sftp/useSftpExternalOperations.ts

@@ -20,7 +20,7 @@ export type { UploadResult };
 
 interface UseSftpExternalOperationsParams {
   getActivePane: (side: "left" | "right") => SftpPane | null;
-  refresh: (side: "left" | "right") => Promise<void>;
+  refresh: (side: "left" | "right", options?: { tabId?: string }) => Promise<void>;
   sftpSessionsRef: React.MutableRefObject<Map<string, string>>;
   connectionCacheKeyMapRef: React.MutableRefObject<Map<string, string>>;
   clearDirCacheEntry?: (connectionId: string, path: string) => void;
@@ -45,7 +45,8 @@ interface SftpExternalOperationsResult {
   activeFileWatchCountRef: React.MutableRefObject<number>;
   uploadExternalFiles: (
     side: "left" | "right",
-    dataTransfer: DataTransfer
+    dataTransfer: DataTransfer,
+    targetPath?: string
   ) => Promise<UploadResult[]>;
   uploadExternalEntries: (
     side: "left" | "right",
@@ -377,6 +378,7 @@ export const useSftpExternalOperations = (
             speed: 0,
             startTime: Date.now(),
             isDirectory: true,
+            progressMode: "bytes",
           };
           addExternalUpload(scanningTask);
         }
@@ -404,6 +406,8 @@ export const useSftpExternalOperations = (
             speed: 0,
             startTime: Date.now(),
             isDirectory: task.isDirectory,
+            progressMode: task.progressMode ?? "bytes",
+            parentTaskId: task.parentTaskId,
           };
           addExternalUpload(transferTask);
         }
@@ -505,7 +509,7 @@ export const useSftpExternalOperations = (
   }, []);
 
   const uploadExternalFiles = useCallback(
-    async (side: "left" | "right", dataTransfer: DataTransfer): Promise<UploadResult[]> => {
+    async (side: "left" | "right", dataTransfer: DataTransfer, targetPath?: string): Promise<UploadResult[]> => {
       const pane = getActivePane(side);
       if (!pane?.connection) {
         throw new Error("No active connection");
@@ -524,13 +528,15 @@ export const useSftpExternalOperations = (
         throw new Error("SFTP session not found");
       }
 
+      const uploadPaneId = pane.id;
+      const uploadTargetPath = targetPath || pane.connection.currentPath;
       // Create a new upload controller for this upload
       const controller = new UploadController();
       uploadControllerRef.current = controller;
 
       const callbacks = createUploadCallbacks(
         pane.connection.id,
-        pane.connection.currentPath,
+        uploadTargetPath,
         pane.connection.isLocal ? undefined : pane.connection.hostId,
         pane.connection.isLocal ? undefined : connectionCacheKeyMapRef.current.get(pane.connection.id),
       );
@@ -539,7 +545,7 @@ export const useSftpExternalOperations = (
         const results = await uploadFromDataTransfer(
           dataTransfer,
           {
-            targetPath: pane.connection.currentPath,
+            targetPath: uploadTargetPath,
             sftpId,
             isLocal: pane.connection.isLocal,
             bridge: createUploadBridge,
@@ -550,7 +556,14 @@ export const useSftpExternalOperations = (
           controller
         );
 
-        await refresh(side);
+        // Invalidate cache for the upload target so returning to that path
+        // triggers a fresh listing.
+        if (clearDirCacheEntry && targetPath) {
+          clearDirCacheEntry(pane.connection.id, uploadTargetPath);
+        }
+        if (uploadTargetPath === pane.connection.currentPath) {
+          await refresh(side, { tabId: uploadPaneId });
+        }
         return results;
       } catch (error) {
         logger.error("[SFTP] Upload failed:", error);
@@ -560,6 +573,7 @@ export const useSftpExternalOperations = (
       }
     },
     [
+      clearDirCacheEntry,
       connectionCacheKeyMapRef,
       getActivePane,
       refresh,
@@ -594,6 +608,9 @@ export const useSftpExternalOperations = (
         throw new Error("SFTP session not found");
       }
 
+      // Capture the pane ID now so we can refresh the correct tab after
+      // upload, even if focus switches during the transfer.
+      const uploadPaneId = pane.id;
       const controller = new UploadController();
       uploadControllerRef.current = controller;
       const uploadTargetPath = options?.targetPath || pane.connection.currentPath;
@@ -623,16 +640,15 @@ export const useSftpExternalOperations = (
           controller,
         );
 
-        // Refresh the current directory and invalidate the upload target's
-        // cache entry.  If the user navigated away during the upload, the
-        // invalidation ensures returning to the target path triggers a fresh
-        // listing instead of serving stale cached data.
-        const livePane = getActivePane(side);
-        if (livePane?.connection) {
-          if (livePane.connection.currentPath !== uploadTargetPath && clearDirCacheEntry) {
-            clearDirCacheEntry(livePane.connection.id, uploadTargetPath);
-          }
-          await refresh(side);
+        // Refresh the specific tab that initiated the upload (not whichever
+        // tab is active now — focus may have switched during the transfer).
+        // Also invalidate the upload target's cache entry so returning to
+        // that path triggers a fresh listing.
+        if (clearDirCacheEntry) {
+          clearDirCacheEntry(pane.connection.id, uploadTargetPath);
+        }
+        if (uploadTargetPath === pane.connection.currentPath) {
+          await refresh(side, { tabId: uploadPaneId });
         }
         return results;
       } catch (error) {

application/state/sftp/useSftpHostCredentials.ts

@@ -1,5 +1,6 @@
 import { useCallback } from "react";
 import type { Host, Identity, SSHKey } from "../../../domain/models";
+import { isEncryptedCredentialPlaceholder, sanitizeCredentialValue } from "../../../domain/credentials";
 import { resolveHostAuth } from "../../../domain/sshAuth";
 
 interface UseSftpHostCredentialsParams {
@@ -24,22 +25,32 @@ export const useSftpHostCredentials = ({
           host: host.proxyConfig.host,
           port: host.proxyConfig.port,
           username: host.proxyConfig.username,
-          password: host.proxyConfig.password,
+          password: sanitizeCredentialValue(host.proxyConfig.password),
         }
         : undefined;
-
       let jumpHosts: NetcattyJumpHost[] | undefined;
       if (host.hostChain?.hostIds && host.hostChain.hostIds.length > 0) {
         jumpHosts = host.hostChain.hostIds
           .map((hostId) => hosts.find((h) => h.id === hostId))
           .filter((h): h is Host => !!h)
-          .map((jumpHost) => {
+          .map((jumpHost, index) => {
             const jumpAuth = resolveHostAuth({
               host: jumpHost,
               keys,
               identities,
             });
             const jumpKey = jumpAuth.key;
+            const hasConfiguredJumpProxyEndpoint =
+              index === 0 &&
+              !!(jumpHost.proxyConfig?.host && jumpHost.proxyConfig?.port);
+            if (
+              hasConfiguredJumpProxyEndpoint &&
+              jumpHost.proxyConfig?.username &&
+              isEncryptedCredentialPlaceholder(jumpHost.proxyConfig.password) &&
+              !sanitizeCredentialValue(jumpHost.proxyConfig.password)
+            ) {
+              throw new Error(`Proxy credentials for jump host "${jumpHost.label || jumpHost.hostname}" cannot be decrypted on this device. Open host settings and re-enter the proxy password.`);
+            }
             return {
               hostname: jumpHost.hostname,
               port: jumpHost.port || 22,
@@ -52,9 +63,23 @@ export const useSftpHostCredentials = ({
               keyId: jumpAuth.keyId,
               keySource: jumpKey?.source,
               label: jumpHost.label,
+              proxy: jumpHost.proxyConfig?.host && jumpHost.proxyConfig?.port
+                ? {
+                  type: jumpHost.proxyConfig.type,
+                  host: jumpHost.proxyConfig.host,
+                  port: jumpHost.proxyConfig.port,
+                  username: jumpHost.proxyConfig.username,
+                  password: sanitizeCredentialValue(jumpHost.proxyConfig.password),
+                }
+                : undefined,
+              identityFilePaths: jumpHost.identityFilePaths,
             };
           });
       }
+      const usesTargetProxyForFirstHop = !!proxyConfig && !jumpHosts?.[0]?.proxy;
+      if (usesTargetProxyForFirstHop && host.proxyConfig?.username && isEncryptedCredentialPlaceholder(host.proxyConfig.password) && !proxyConfig?.password) {
+        throw new Error("Proxy credentials cannot be decrypted on this device. Open host settings and re-enter the proxy password.");
+      }
 
       return {
         hostname: host.hostname,
@@ -70,6 +95,7 @@ export const useSftpHostCredentials = ({
         proxy: proxyConfig,
         jumpHosts: jumpHosts && jumpHosts.length > 0 ? jumpHosts : undefined,
         sudo: host.sftpSudo,
+        identityFilePaths: host.identityFilePaths,
       };
     },
     [hosts, identities, keys],

application/state/sftp/useSftpPaneActions.ts

@@ -3,9 +3,12 @@ import type { Host, SftpFileEntry, SftpFilenameEncoding } from "../../../domain/
 import { netcattyBridge } from "../../../infrastructure/services/netcattyBridge";
 import { logger } from "../../../lib/logger";
 import { SftpPane } from "./types";
-import { getParentPath, isNavigableDirectory, isWindowsRoot, joinPath } from "./utils";
+import { getFileName, getParentPath, isNavigableDirectory, isWindowsRoot, joinPath } from "./utils";
 import { buildCacheKey, setSharedRemoteHostCache } from "./sharedRemoteHostCache";
 
+/** Shared empty set for navigation resets — never mutate this. */
+const EMPTY_SET = new Set<string>();
+
 interface UseSftpPaneActionsParams {
   hosts: Host[];
   getActivePane: (side: "left" | "right") => SftpPane | null;
@@ -25,12 +28,13 @@ interface UseSftpPaneActionsParams {
   listRemoteFiles: (sftpId: string, path: string, encoding?: SftpFilenameEncoding) => Promise<SftpFileEntry[]>;
   handleSessionError: (side: "left" | "right", error: Error) => void;
   isSessionError: (err: unknown) => boolean;
+  clearSelectionsExcept: (target: { side: "left" | "right"; tabId: string } | null) => void;
   dirCacheTtlMs: number;
 }
 
 interface UseSftpPaneActionsResult {
-  navigateTo: (side: "left" | "right", path: string, options?: { force?: boolean }) => Promise<void>;
-  refresh: (side: "left" | "right") => Promise<void>;
+  navigateTo: (side: "left" | "right", path: string, options?: { force?: boolean; tabId?: string }) => Promise<void>;
+  refresh: (side: "left" | "right", options?: { tabId?: string }) => Promise<void>;
   navigateUp: (side: "left" | "right") => Promise<void>;
   openEntry: (side: "left" | "right", entry: SftpFileEntry) => Promise<void>;
   toggleSelection: (side: "left" | "right", fileName: string, multiSelect: boolean) => void;
@@ -40,7 +44,9 @@ interface UseSftpPaneActionsResult {
   setFilter: (side: "left" | "right", filter: string) => void;
   getFilteredFiles: (pane: SftpPane) => SftpFileEntry[];
   createDirectory: (side: "left" | "right", name: string) => Promise<void>;
+  createDirectoryAtPath: (side: "left" | "right", path: string, name: string) => Promise<void>;
   createFile: (side: "left" | "right", name: string) => Promise<void>;
+  createFileAtPath: (side: "left" | "right", path: string, name: string) => Promise<void>;
   deleteFiles: (side: "left" | "right", fileNames: string[]) => Promise<void>;
   deleteFilesAtPath: (
     side: "left" | "right",
@@ -49,6 +55,8 @@ interface UseSftpPaneActionsResult {
     fileNames: string[],
   ) => Promise<void>;
   renameFile: (side: "left" | "right", oldName: string, newName: string) => Promise<void>;
+  renameFileAtPath: (side: "left" | "right", oldPath: string, newName: string) => Promise<void>;
+  moveEntriesToPath: (side: "left" | "right", sourcePaths: string[], targetPath: string) => Promise<void>;
   changePermissions: (side: "left" | "right", filePath: string, mode: string) => Promise<void>;
 }
 
@@ -71,8 +79,39 @@ export const useSftpPaneActions = ({
   listRemoteFiles,
   handleSessionError,
   isSessionError,
+  clearSelectionsExcept,
   dirCacheTtlMs,
 }: UseSftpPaneActionsParams): UseSftpPaneActionsResult => {
+  const normalizePathForCompare = useCallback((path: string): string => {
+    if (isWindowsRoot(path)) return path.replace(/\//g, "\\").toLowerCase();
+    if (/^[A-Za-z]:/.test(path)) {
+      return path.replace(/\//g, "\\").replace(/[\\]+$/, "").toLowerCase();
+    }
+    if (path === "/") return "/";
+    return path.replace(/\/+$/, "");
+  }, []);
+
+  const isSamePath = useCallback((a: string, b: string): boolean => {
+    return normalizePathForCompare(a) === normalizePathForCompare(b);
+  }, [normalizePathForCompare]);
+
+  const isDescendantPath = useCallback((candidate: string, parent: string): boolean => {
+    const normalizedCandidate = normalizePathForCompare(candidate);
+    const normalizedParent = normalizePathForCompare(parent);
+    if (normalizedCandidate === normalizedParent) return false;
+
+    if (/^[a-z]:\\$/.test(normalizedParent)) {
+      return normalizedCandidate.startsWith(normalizedParent);
+    }
+
+    if (normalizedParent === "/") {
+      return normalizedCandidate.startsWith("/");
+    }
+
+    const separator = normalizedParent.includes("\\") ? "\\" : "/";
+    return normalizedCandidate.startsWith(`${normalizedParent}${separator}`);
+  }, [normalizePathForCompare]);
+
   // Build the shared cache key for the active pane. Prefer the last connected
   // host (which includes session-time overrides), fall back to the vault hosts list.
   const hostsRef = useRef(hosts);
@@ -114,23 +153,18 @@ export const useSftpPaneActions = ({
     async (
       side: "left" | "right",
       path: string,
-      options?: { force?: boolean },
+      options?: { force?: boolean; tabId?: string },
     ) => {
-      console.log("[SFTP navigateTo] called", { side, path, force: options?.force });
-
-      const pane = getActivePane(side);
       const sideTabs = side === "left" ? leftTabsRef.current : rightTabsRef.current;
-      const activeTabId = sideTabs.activeTabId;
+      // When tabId is specified, target that specific tab instead of the active one.
+      // This allows refreshing a background tab (e.g. after a transfer completes
+      // while focus has switched to another host).
+      const targetTabId = options?.tabId ?? sideTabs.activeTabId;
+      const pane = options?.tabId
+        ? sideTabs.tabs.find((t) => t.id === options.tabId) ?? null
+        : getActivePane(side);
 
-      console.log("[SFTP navigateTo] state check", {
-        paneId: pane?.id,
-        hasConnection: !!pane?.connection,
-        activeTabId,
-        currentPath: pane?.connection?.currentPath,
-      });
-
-      if (!pane?.connection || !activeTabId) {
-        console.log("[SFTP navigateTo] No pane/connection/activeTabId, returning early");
+      if (!pane?.connection || !targetTabId) {
         return;
       }
 
@@ -146,15 +180,14 @@ export const useSftpPaneActions = ({
         Date.now() - cached.timestamp < dirCacheTtlMs &&
         cached.files
       ) {
-        console.log("[SFTP navigateTo] Using cached files for path", { path, cacheKey });
-        tabNavSeqRef.current.set(activeTabId, requestId);
-        lastConfirmedRef.current.set(activeTabId, {
+        tabNavSeqRef.current.set(targetTabId, requestId);
+        lastConfirmedRef.current.set(targetTabId, {
           connectionId,
           path,
           files: cached.files,
-          selectedFiles: new Set(),
+          selectedFiles: EMPTY_SET,
         });
-        updateTab(side, activeTabId, (prev) => ({
+        updateTab(side, targetTabId, (prev) => ({
           ...prev,
           connection: prev.connection
             ? { ...prev.connection, currentPath: path }
@@ -162,7 +195,7 @@ export const useSftpPaneActions = ({
           files: cached.files,
           loading: false,
           error: null,
-          selectedFiles: new Set(),
+          selectedFiles: EMPTY_SET,
         }));
         if (!pane.connection.isLocal) {
           // Use hostId as the shared cache key — this is safe because the
@@ -180,34 +213,33 @@ export const useSftpPaneActions = ({
         return;
       }
 
-      console.log("[SFTP navigateTo] Fetching files from server for path", { path });
       // Re-seed confirmed state whenever the pane is settled (not loading), or
       // when the connection has changed. This captures post-mutation state from
       // optimistic updates (e.g. deleteFilesAtPath) so that a failed refresh
       // doesn't resurrect deleted items.
-      const existing = lastConfirmedRef.current.get(activeTabId);
+      const existing = lastConfirmedRef.current.get(targetTabId);
       if (!existing || existing.connectionId !== connectionId || !pane.loading) {
-        lastConfirmedRef.current.set(activeTabId, {
+        lastConfirmedRef.current.set(targetTabId, {
           connectionId,
           path: pane.connection.currentPath,
           files: pane.files,
           selectedFiles: pane.selectedFiles,
         });
       }
-      const confirmed = lastConfirmedRef.current.get(activeTabId)!;
+      const confirmed = lastConfirmedRef.current.get(targetTabId)!;
       const previousPath = confirmed.path;
       const previousFiles = confirmed.files;
       const previousSelection = confirmed.selectedFiles;
-      tabNavSeqRef.current.set(activeTabId, requestId);
+      tabNavSeqRef.current.set(targetTabId, requestId);
       // Keep existing files visible during loading — the loading overlay
       // (pointer-events-none) prevents interaction. This avoids blanking a tab
       // that gets superseded by another tab navigating on the same side.
-      updateTab(side, activeTabId, (prev) => ({
+      updateTab(side, targetTabId, (prev) => ({
         ...prev,
         connection: prev.connection
           ? { ...prev.connection, currentPath: path }
           : null,
-        selectedFiles: new Set(),
+        selectedFiles: EMPTY_SET,
         loading: true,
         error: null,
       }));
@@ -221,16 +253,17 @@ export const useSftpPaneActions = ({
           const sftpId = sftpSessionsRef.current.get(pane.connection.id);
           if (!sftpId) {
             clearCacheForConnection(pane.connection.id);
-            updateTab(side, activeTabId, (prev) => ({
-              ...prev,
-              connection: null,
-              files: [],
-              loading: false,
-              reconnecting: false,
-              error: "SFTP session lost. Please reconnect.",
-              selectedFiles: new Set(),
-              filter: "",
-            }));
+            // For background tabs (explicit tabId), update that tab directly
+            // instead of handleSessionError which targets the active tab.
+            if (options?.tabId) {
+              updateTab(side, targetTabId, (prev) => ({
+                ...prev,
+                error: "sftp.error.sessionLost",
+                loading: false,
+              }));
+            } else {
+              handleSessionError(side, new Error("SFTP session lost"));
+            }
             return;
           }
 
@@ -240,16 +273,15 @@ export const useSftpPaneActions = ({
             if (isSessionError(err)) {
               sftpSessionsRef.current.delete(pane.connection.id);
               clearCacheForConnection(pane.connection.id);
-              updateTab(side, activeTabId, (prev) => ({
-                ...prev,
-                connection: null,
-                files: [],
-                loading: false,
-                reconnecting: false,
-                error: "SFTP session expired. Please reconnect.",
-                selectedFiles: new Set(),
-                filter: "",
-              }));
+              if (options?.tabId) {
+                updateTab(side, targetTabId, (prev) => ({
+                  ...prev,
+                  error: "sftp.error.sessionLost",
+                  loading: false,
+                }));
+              } else {
+                handleSessionError(side, err as Error);
+              }
               return;
             }
             throw err as Error;
@@ -257,27 +289,15 @@ export const useSftpPaneActions = ({
         }
 
         if (navSeqRef.current[side] !== requestId) {
-          // Another navigation on this side superseded this request.
-          // Only restore if no newer navigation has occurred on this specific tab
-          // AND the tab still belongs to the same connection (connect/disconnect
-          // bump navSeqRef but not tabNavSeqRef).
-          if (tabNavSeqRef.current.get(activeTabId) !== requestId) {
+          // Side-level sequence was bumped by another tab's navigation or
+          // a connect/disconnect. Check if THIS tab's request is still current.
+          if (tabNavSeqRef.current.get(targetTabId) !== requestId) {
+            // This tab also has a newer navigation — drop completely.
             return;
           }
-          updateTab(side, activeTabId, (prev) => {
-            if (prev.connection?.id !== connectionId) {
-              // Tab was reconnected or disconnected; don't restore stale state.
-              return prev;
-            }
-            return {
-              ...prev,
-              connection: { ...prev.connection, currentPath: previousPath },
-              files: previousFiles,
-              selectedFiles: previousSelection,
-              loading: false,
-            };
-          });
-          return;
+          // Side was superseded by another tab, but this tab's request is
+          // still current. The fetched files are valid — fall through to
+          // apply them instead of restoring previousPath.
         }
 
         dirCacheRef.current.set(cacheKey, {
@@ -285,21 +305,21 @@ export const useSftpPaneActions = ({
           timestamp: Date.now(),
         });
 
-        lastConfirmedRef.current.set(activeTabId, {
+        lastConfirmedRef.current.set(targetTabId, {
           connectionId,
           path,
           files,
-          selectedFiles: new Set(),
+          selectedFiles: EMPTY_SET,
         });
 
-        updateTab(side, activeTabId, (prev) => ({
+        updateTab(side, targetTabId, (prev) => ({
           ...prev,
           connection: prev.connection
             ? { ...prev.connection, currentPath: path }
             : null,
           files,
           loading: false,
-          selectedFiles: new Set(),
+          selectedFiles: EMPTY_SET,
         }));
         if (!pane.connection.isLocal) {
           setSharedRemoteHostCache(getActivePaneCacheKey(side, pane.connection.hostId, pane.connection.id), {
@@ -311,24 +331,13 @@ export const useSftpPaneActions = ({
         }
       } catch (err) {
         if (navSeqRef.current[side] !== requestId) {
-          if (tabNavSeqRef.current.get(activeTabId) !== requestId) {
+          if (tabNavSeqRef.current.get(targetTabId) !== requestId) {
             return;
           }
-          updateTab(side, activeTabId, (prev) => {
-            if (prev.connection?.id !== connectionId) {
-              return prev;
-            }
-            return {
-              ...prev,
-              connection: { ...prev.connection, currentPath: previousPath },
-              files: previousFiles,
-              selectedFiles: previousSelection,
-              loading: false,
-            };
-          });
-          return;
+          // Side superseded by another tab, but this tab's request is
+          // current — fall through to show the error on this tab.
         }
-        updateTab(side, activeTabId, (prev) => {
+        updateTab(side, targetTabId, (prev) => {
           if (prev.connection?.id !== connectionId) {
             return prev;
           }
@@ -358,16 +367,43 @@ export const useSftpPaneActions = ({
       listRemoteFiles,
       sftpSessionsRef,
       clearCacheForConnection,
+      handleSessionError,
       isSessionError,
     ],
   );
 
   const refresh = useCallback(
-    async (side: "left" | "right") => {
-      const pane = getActivePane(side);
+    async (side: "left" | "right", options?: { tabId?: string }) => {
+      const sideTabs = side === "left" ? leftTabsRef.current : rightTabsRef.current;
+      const pane = options?.tabId
+        ? sideTabs.tabs.find((t) => t.id === options.tabId) ?? null
+        : getActivePane(side);
       if (pane?.connection) {
-        await navigateTo(side, pane.connection.currentPath, { force: true });
+        const hasRemoteSession = pane.connection.isLocal || sftpSessionsRef.current.has(pane.connection.id);
+        if (!hasRemoteSession) {
+          if (options?.tabId) return;
+          const lastHost = lastConnectedHostRef.current[side];
+          if (lastHost && !reconnectingRef.current[side]) {
+            reconnectingRef.current[side] = true;
+            updateActiveTab(side, (prev) => ({
+              ...prev,
+              reconnecting: true,
+              error: "sftp.reconnecting.title",
+            }));
+          } else if (!lastHost) {
+            updateActiveTab(side, (prev) => ({
+              ...prev,
+              error: "sftp.error.connectionLostManual",
+            }));
+          }
+          return;
+        }
+        await navigateTo(side, pane.connection.currentPath, { force: true, tabId: options?.tabId });
       } else if (!pane?.connection && pane?.error) {
+        // For background tabs, don't trigger reconnection (it operates on
+        // the active tab). Just leave the error state for the user to see
+        // when they switch back to that tab.
+        if (options?.tabId) return;
         const lastHost = lastConnectedHostRef.current[side];
         if (lastHost && !reconnectingRef.current[side]) {
           reconnectingRef.current[side] = true;
@@ -384,7 +420,7 @@ export const useSftpPaneActions = ({
         }
       }
     },
-    [getActivePane, navigateTo, updateActiveTab, lastConnectedHostRef, reconnectingRef],
+    [getActivePane, leftTabsRef, rightTabsRef, navigateTo, updateActiveTab, lastConnectedHostRef, reconnectingRef, sftpSessionsRef],
   );
 
   const navigateUp = useCallback(
@@ -405,42 +441,24 @@ export const useSftpPaneActions = ({
 
   const openEntry = useCallback(
     async (side: "left" | "right", entry: SftpFileEntry) => {
-      console.log("[SFTP openEntry] called", { side, entryName: entry.name, entryType: entry.type });
-
       const pane = getActivePane(side);
-      console.log("[SFTP openEntry] getActivePane result", {
-        paneId: pane?.id,
-        hasConnection: !!pane?.connection,
-        currentPath: pane?.connection?.currentPath,
-      });
 
       if (!pane?.connection) {
-        console.log("[SFTP openEntry] No pane or connection, returning early");
         return;
       }
 
       if (entry.name === "..") {
         const currentPath = pane.connection.currentPath;
         const isAtRoot = currentPath === "/" || isWindowsRoot(currentPath);
-        console.log("[SFTP openEntry] Navigating up from '..'", {
-          currentPath,
-          isAtRoot,
-          isWindowsRoot: isWindowsRoot(currentPath),
-        });
-
         if (!isAtRoot) {
           const parentPath = getParentPath(currentPath);
-          console.log("[SFTP openEntry] Calculated parent path", { currentPath, parentPath });
           await navigateTo(side, parentPath);
-        } else {
-          console.log("[SFTP openEntry] Already at root, not navigating");
         }
         return;
       }
 
       if (isNavigableDirectory(entry)) {
         const newPath = joinPath(pane.connection.currentPath, entry.name);
-        console.log("[SFTP openEntry] Navigating into directory", { currentPath: pane.connection.currentPath, entryName: entry.name, newPath });
         await navigateTo(side, newPath);
       }
     },
@@ -449,6 +467,10 @@ export const useSftpPaneActions = ({
 
   const toggleSelection = useCallback(
     (side: "left" | "right", fileName: string, multiSelect: boolean) => {
+      const activeTabId = (side === "left" ? leftTabsRef : rightTabsRef).current.activeTabId;
+      if (activeTabId) {
+        clearSelectionsExcept({ side, tabId: activeTabId });
+      }
       updateActiveTab(side, (prev) => {
         const newSelection = new Set(multiSelect ? prev.selectedFiles : []);
         if (newSelection.has(fileName)) {
@@ -459,11 +481,15 @@ export const useSftpPaneActions = ({
         return { ...prev, selectedFiles: newSelection };
       });
     },
-    [updateActiveTab],
+    [updateActiveTab, clearSelectionsExcept, leftTabsRef, rightTabsRef],
   );
 
   const rangeSelect = useCallback(
     (side: "left" | "right", fileNames: string[]) => {
+      const activeTabId = (side === "left" ? leftTabsRef : rightTabsRef).current.activeTabId;
+      if (activeTabId) {
+        clearSelectionsExcept({ side, tabId: activeTabId });
+      }
       const newSelection = new Set<string>();
       for (const name of fileNames) {
         if (name && name !== "..") {
@@ -473,11 +499,11 @@ export const useSftpPaneActions = ({
 
       updateActiveTab(side, (prev) => ({ ...prev, selectedFiles: newSelection }));
     },
-    [updateActiveTab],
+    [updateActiveTab, clearSelectionsExcept, leftTabsRef, rightTabsRef],
   );
 
   const clearSelection = useCallback((side: "left" | "right") => {
-    updateActiveTab(side, (prev) => ({ ...prev, selectedFiles: new Set() }));
+    updateActiveTab(side, (prev) => ({ ...prev, selectedFiles: EMPTY_SET }));
   }, [updateActiveTab]);
 
   const selectAll = useCallback(
@@ -507,12 +533,12 @@ export const useSftpPaneActions = ({
     );
   }, []);
 
-  const createDirectory = useCallback(
-    async (side: "left" | "right", name: string) => {
+  const createDirectoryAtPath = useCallback(
+    async (side: "left" | "right", path: string, name: string) => {
       const pane = getActivePane(side);
       if (!pane?.connection) return;
 
-      const fullPath = joinPath(pane.connection.currentPath, name);
+      const fullPath = joinPath(path, name);
 
       try {
         if (pane.connection.isLocal) {
@@ -525,7 +551,9 @@ export const useSftpPaneActions = ({
           }
           await netcattyBridge.get()?.mkdirSftp(sftpId, fullPath, pane.filenameEncoding);
         }
-        await refresh(side);
+        if (pane.connection.currentPath === path) {
+          await refresh(side);
+        }
       } catch (err) {
         if (isSessionError(err)) {
           handleSessionError(side, err as Error);
@@ -537,12 +565,21 @@ export const useSftpPaneActions = ({
     [getActivePane, refresh, handleSessionError, sftpSessionsRef, isSessionError],
   );
 
-  const createFile = useCallback(
+  const createDirectory = useCallback(
     async (side: "left" | "right", name: string) => {
       const pane = getActivePane(side);
       if (!pane?.connection) return;
+      await createDirectoryAtPath(side, pane.connection.currentPath, name);
+    },
+    [createDirectoryAtPath, getActivePane],
+  );
 
-      const fullPath = joinPath(pane.connection.currentPath, name);
+  const createFileAtPath = useCallback(
+    async (side: "left" | "right", path: string, name: string) => {
+      const pane = getActivePane(side);
+      if (!pane?.connection) return;
+
+      const fullPath = joinPath(path, name);
 
       try {
         if (pane.connection.isLocal) {
@@ -569,7 +606,9 @@ export const useSftpPaneActions = ({
             throw new Error("No write method available");
           }
         }
-        await refresh(side);
+        if (pane.connection.currentPath === path) {
+          await refresh(side);
+        }
       } catch (err) {
         if (isSessionError(err)) {
           handleSessionError(side, err as Error);
@@ -581,6 +620,15 @@ export const useSftpPaneActions = ({
     [getActivePane, refresh, handleSessionError, sftpSessionsRef, isSessionError],
   );
 
+  const createFile = useCallback(
+    async (side: "left" | "right", name: string) => {
+      const pane = getActivePane(side);
+      if (!pane?.connection) return;
+      await createFileAtPath(side, pane.connection.currentPath, name);
+    },
+    [createFileAtPath, getActivePane],
+  );
+
   const deleteFiles = useCallback(
     async (side: "left" | "right", fileNames: string[]) => {
       const pane = getActivePane(side);
@@ -726,6 +774,139 @@ export const useSftpPaneActions = ({
     [getActivePane, refresh, handleSessionError, sftpSessionsRef, isSessionError],
   );
 
+  // Rename using a full source path (for tree view where entryPath is already absolute).
+  // newName is still a basename; the new path is built as joinPath(parent, newName).
+  const renameFileAtPath = useCallback(
+    async (side: "left" | "right", oldPath: string, newName: string) => {
+      const pane = getActivePane(side);
+      if (!pane?.connection) return;
+
+      const parentPath = getParentPath(oldPath);
+      const newPath = joinPath(parentPath, newName);
+
+      try {
+        if (pane.connection.isLocal) {
+          await netcattyBridge.get()?.renameLocalFile?.(oldPath, newPath);
+        } else {
+          const sftpId = sftpSessionsRef.current.get(pane.connection.id);
+          if (!sftpId) {
+            handleSessionError(side, new Error("SFTP session not found"));
+            return;
+          }
+          await netcattyBridge.get()?.renameSftp?.(sftpId, oldPath, newPath, pane.filenameEncoding);
+        }
+        if (pane.connection.currentPath === parentPath) {
+          await refresh(side);
+        }
+      } catch (err) {
+        if (isSessionError(err)) {
+          handleSessionError(side, err as Error);
+          return;
+        }
+        throw err;
+      }
+    },
+    [getActivePane, refresh, handleSessionError, sftpSessionsRef, isSessionError],
+  );
+
+  const moveEntriesToPath = useCallback(
+    async (side: "left" | "right", sourcePaths: string[], targetPath: string) => {
+      const pane = getActivePane(side);
+      if (!pane?.connection || sourcePaths.length === 0) return;
+
+      const uniqueSources = Array.from(new Set(sourcePaths.filter(Boolean)));
+      const filteredSources = uniqueSources
+        .sort((a, b) => a.length - b.length)
+        .filter((path, index, arr) =>
+          !arr.slice(0, index).some((otherPath) => isSamePath(path, otherPath) || isDescendantPath(path, otherPath)),
+        );
+
+      const movableSources = filteredSources.filter((sourcePath) => {
+        if (isSamePath(sourcePath, targetPath)) return false;
+        if (isDescendantPath(targetPath, sourcePath)) return false;
+        const destinationPath = joinPath(targetPath, getFileName(sourcePath));
+        return !isSamePath(destinationPath, sourcePath);
+      });
+
+      if (movableSources.length === 0) return;
+
+      const sourceParentNames = new Map<string, string[]>();
+      for (const sourcePath of movableSources) {
+        const parentPath = getParentPath(sourcePath);
+        const names = sourceParentNames.get(parentPath) ?? [];
+        names.push(getFileName(sourcePath));
+        sourceParentNames.set(parentPath, names);
+      }
+
+      try {
+        if (pane.connection.isLocal) {
+          const renameLocalFile = netcattyBridge.get()?.renameLocalFile;
+          if (!renameLocalFile) {
+            throw new Error("Local rename unavailable");
+          }
+          for (const sourcePath of movableSources) {
+            const destinationPath = joinPath(targetPath, getFileName(sourcePath));
+            await renameLocalFile(sourcePath, destinationPath);
+          }
+        } else {
+          const sftpId = sftpSessionsRef.current.get(pane.connection.id);
+          if (!sftpId) {
+            handleSessionError(side, new Error("SFTP session not found"));
+            return;
+          }
+          const renameSftp = netcattyBridge.get()?.renameSftp;
+          if (!renameSftp) {
+            throw new Error("SFTP rename unavailable");
+          }
+          for (const sourcePath of movableSources) {
+            const destinationPath = joinPath(targetPath, getFileName(sourcePath));
+            await renameSftp(sftpId, sourcePath, destinationPath, pane.filenameEncoding);
+          }
+        }
+        clearCacheForConnection(pane.connection.id);
+        const currentPath = pane.connection.currentPath;
+        const sourceParents = Array.from(sourceParentNames.keys());
+        const currentPathAffected =
+          sourceParents.some((path) => isSamePath(path, currentPath)) ||
+          isSamePath(targetPath, currentPath);
+
+        if (currentPathAffected) {
+          await refresh(side);
+        } else {
+          updateActiveTab(side, (prev) => {
+            if (!prev.connection || prev.connection.id !== pane.connection?.id) {
+              return prev;
+            }
+
+            const namesInCurrentPath = sourceParentNames.get(prev.connection.currentPath);
+            if (!namesInCurrentPath || namesInCurrentPath.length === 0) {
+              return prev;
+            }
+
+            const removeSet = new Set(namesInCurrentPath);
+            const nextSelection = new Set(prev.selectedFiles);
+            for (const name of removeSet) {
+              nextSelection.delete(name);
+            }
+
+            return {
+              ...prev,
+              files: prev.files.filter((file) => !removeSet.has(file.name)),
+              selectedFiles: nextSelection,
+            };
+          });
+        }
+      } catch (err) {
+        if (isSessionError(err)) {
+          handleSessionError(side, err as Error);
+          return;
+        }
+        throw err;
+      }
+    },
+    [clearCacheForConnection, getActivePane, handleSessionError, isDescendantPath, isSamePath, isSessionError, refresh, sftpSessionsRef, updateActiveTab],
+  );
+
   const changePermissions = useCallback(
     async (
       side: "left" | "right",
@@ -770,10 +951,14 @@ export const useSftpPaneActions = ({
     setFilter,
     getFilteredFiles,
     createDirectory,
+    createDirectoryAtPath,
     createFile,
+    createFileAtPath,
     deleteFiles,
     deleteFilesAtPath,
     renameFile,
+    renameFileAtPath,
+    moveEntriesToPath,
     changePermissions,
   };
 };

application/state/sftp/useSftpTabsState.ts

@@ -2,7 +2,7 @@ import React, { useCallback, useMemo, useRef, useState } from "react";
 import { createEmptyPane, EMPTY_LEFT_PANE_ID, EMPTY_RIGHT_PANE_ID, SftpPane, SftpSideTabs } from "./types";
 import { logger } from "../../../lib/logger";
 
-export interface SftpTabsState {
+interface SftpTabsState {
   leftTabs: SftpSideTabs;
   rightTabs: SftpSideTabs;
   leftTabsRef: React.MutableRefObject<SftpSideTabs>;
@@ -14,6 +14,7 @@ export interface SftpTabsState {
   getActivePane: (side: "left" | "right") => SftpPane | null;
   updateTab: (side: "left" | "right", tabId: string, updater: (pane: SftpPane) => SftpPane) => void;
   updateActiveTab: (side: "left" | "right", updater: (pane: SftpPane) => SftpPane) => void;
+  clearSelectionsExcept: (target: { side: "left" | "right"; tabId: string } | null) => void;
   setTabShowHiddenFiles: (side: "left" | "right", tabId: string, showHiddenFiles: boolean) => void;
   addTab: (side: "left" | "right") => string;
   closeTab: (side: "left" | "right", tabId: string) => void;
@@ -34,6 +35,8 @@ export interface SftpTabsState {
   getActiveTabId: (side: "left" | "right") => string | null;
 }
 
+const EMPTY_SELECTION = new Set<string>();
+
 export const useSftpTabsState = ({
   defaultShowHiddenFiles = false,
 }: {
@@ -95,6 +98,31 @@ export const useSftpTabsState = ({
     [updateTab],
   );
 
+  const clearSelectionsExcept = useCallback(
+    (target: { side: "left" | "right"; tabId: string } | null) => {
+      const clearSideSelections = (
+        prev: SftpSideTabs,
+        side: "left" | "right",
+      ): SftpSideTabs => {
+        let changed = false;
+        const tabs = prev.tabs.map((tab) => {
+          const shouldKeepSelection =
+            target?.side === side && target.tabId === tab.id;
+          if (shouldKeepSelection || tab.selectedFiles.size === 0) {
+            return tab;
+          }
+          changed = true;
+          return { ...tab, selectedFiles: EMPTY_SELECTION };
+        });
+        return changed ? { ...prev, tabs } : prev;
+      };
+
+      setLeftTabs((prev) => clearSideSelections(prev, "left"));
+      setRightTabs((prev) => clearSideSelections(prev, "right"));
+    },
+    [],
+  );
+
   const setTabShowHiddenFiles = useCallback(
     (side: "left" | "right", tabId: string, showHiddenFiles: boolean) => {
       updateTab(side, tabId, (prev) => {
@@ -258,6 +286,7 @@ export const useSftpTabsState = ({
     getActivePane,
     updateTab,
     updateActiveTab,
+    clearSelectionsExcept,
     setTabShowHiddenFiles,
     addTab,
     closeTab,

application/state/sftp/utils.ts

@@ -48,39 +48,31 @@ export const joinPath = (base: string, name: string): string => {
     return `${normalizedBase}\\${name}`;
   }
   if (base === "/") return `/${name}`;
-  return `${base}/${name}`;
+  return `${base.replace(/\/+$/, "")}/${name}`;
 };
 
 export const getParentPath = (path: string): string => {
-  console.log("[SFTP getParentPath] input", { path, isWindows: isWindowsPath(path) });
-
   if (isWindowsPath(path)) {
     const normalized = normalizeWindowsRoot(path).replace(/[\\]+$/, "");
     const drive = normalized.slice(0, 2);
     if (/^[A-Za-z]:$/.test(normalized) || /^[A-Za-z]:\\$/.test(normalized)) {
-      console.log("[SFTP getParentPath] Windows root, returning", { result: `${drive}\\` });
       return `${drive}\\`;
     }
     const rest = normalized.slice(2).replace(/^[\\]+/, "");
     const parts = rest ? rest.split(/[\\]+/).filter(Boolean) : [];
     if (parts.length <= 1) {
-      console.log("[SFTP getParentPath] Windows near root, returning", { result: `${drive}\\` });
       return `${drive}\\`;
     }
     parts.pop();
     const result = `${drive}\\${parts.join("\\")}`;
-    console.log("[SFTP getParentPath] Windows result", { result });
     return result;
   }
   if (path === "/") {
-    console.log("[SFTP getParentPath] Unix root, returning /");
     return "/";
   }
   const parts = path.split("/").filter(Boolean);
-  console.log("[SFTP getParentPath] Unix parts before pop", { parts: [...parts] });
   parts.pop();
   const result = parts.length ? `/${parts.join("/")}` : "/";
-  console.log("[SFTP getParentPath] Unix result", { result, partsAfterPop: parts });
   return result;
 };
 

application/state/useAIState.ts

@@ -12,6 +12,7 @@ import {
   STORAGE_KEY_AI_COMMAND_TIMEOUT,
   STORAGE_KEY_AI_MAX_ITERATIONS,
   STORAGE_KEY_AI_SESSIONS,
+  STORAGE_KEY_AI_ACTIVE_SESSION_MAP,
   STORAGE_KEY_AI_AGENT_MODEL_MAP,
   STORAGE_KEY_AI_WEB_SEARCH,
 } from '../../infrastructure/config/storageKeys';
@@ -32,6 +33,12 @@ function getAIBridge() {
   return (window as unknown as { netcatty?: Record<string, (...args: unknown[]) => unknown> }).netcatty;
 }
 
+const AI_STATE_CHANGED_EVENT = 'netcatty:ai-state-changed';
+
+function emitAIStateChanged(key: string) {
+  window.dispatchEvent(new CustomEvent<{ key: string }>(AI_STATE_CHANGED_EVENT, { detail: { key } }));
+}
+
 function cleanupAcpSessions(sessionIds: string[]) {
   const bridge = getAIBridge();
   if (!bridge?.aiAcpCleanup || sessionIds.length === 0) return;
@@ -40,6 +47,83 @@ function cleanupAcpSessions(sessionIds: string[]) {
   }
 }
 
+function isScopeKeyActive(scopeKey: string, activeTargetIds: Set<string>) {
+  const separatorIndex = scopeKey.indexOf(':');
+  if (separatorIndex === -1) return true;
+
+  const targetId = scopeKey.slice(separatorIndex + 1);
+  if (!targetId) return true;
+
+  return activeTargetIds.has(targetId);
+}
+
+export function cleanupOrphanedAISessions(activeTargetIds: Set<string>) {
+  const currentSessions = latestAISessionsSnapshot
+    ?? localStorageAdapter.read<AISession[]>(STORAGE_KEY_AI_SESSIONS)
+    ?? [];
+  const orphanedSessionIds = currentSessions
+    .filter((session) => session.scope.targetId && !activeTargetIds.has(session.scope.targetId))
+    .map((session) => session.id);
+
+  if (orphanedSessionIds.length > 0) {
+    const orphanedSessionIdSet = new Set(orphanedSessionIds);
+
+    // Determine which sessions can be restored via host-based matching
+    const preservedIds = new Set<string>();
+    for (const session of currentSessions) {
+      if (!orphanedSessionIdSet.has(session.id)) continue;
+      // Only preserve remote terminal sessions with real hostIds
+      const isRestorable = session.scope.type === 'terminal'
+        && session.scope.hostIds?.length
+        && session.scope.hostIds.some((id) => !id.startsWith('local-') && !id.startsWith('serial-'));
+      if (isRestorable) {
+        preservedIds.add(session.id);
+      }
+    }
+
+    // Cleanup ACP sessions for all orphans (both deleted and preserved).
+    // Preserved sessions will get a new externalSessionId on next use,
+    // so cleaning the old one is safe and prevents subprocess leaks.
+    cleanupAcpSessions(orphanedSessionIds);
+
+    const nextSessions = currentSessions
+      .filter((session) => !orphanedSessionIdSet.has(session.id) || preservedIds.has(session.id))
+      .map((session) => {
+        if (!preservedIds.has(session.id) || !session.externalSessionId) {
+          return session;
+        }
+        // Drop transient ACP session handles so the next turn starts cleanly.
+        return { ...session, externalSessionId: undefined };
+      });
+
+    const sessionsChanged = nextSessions.length !== currentSessions.length
+      || nextSessions.some((session, index) => session !== currentSessions[index]);
+    if (sessionsChanged) {
+      setLatestAISessionsSnapshot(nextSessions);
+      localStorageAdapter.write(STORAGE_KEY_AI_SESSIONS, pruneSessionsForStorage(nextSessions));
+      emitAIStateChanged(STORAGE_KEY_AI_SESSIONS);
+    }
+  }
+
+  const activeSessionIdMap = latestAIActiveSessionMapSnapshot
+    ?? localStorageAdapter.read<Record<string, string | null>>(STORAGE_KEY_AI_ACTIVE_SESSION_MAP)
+    ?? {};
+  let activeSessionMapChanged = false;
+  const nextActiveSessionIdMap = { ...activeSessionIdMap };
+
+  for (const scopeKey of Object.keys(activeSessionIdMap)) {
+    if (isScopeKeyActive(scopeKey, activeTargetIds)) continue;
+    delete nextActiveSessionIdMap[scopeKey];
+    activeSessionMapChanged = true;
+  }
+
+  if (activeSessionMapChanged) {
+    setLatestAIActiveSessionMapSnapshot(nextActiveSessionIdMap);
+    localStorageAdapter.write(STORAGE_KEY_AI_ACTIVE_SESSION_MAP, nextActiveSessionIdMap);
+    emitAIStateChanged(STORAGE_KEY_AI_ACTIVE_SESSION_MAP);
+  }
+}
+
 
 /** Maximum number of sessions to keep in localStorage. */
 const MAX_STORED_SESSIONS = 50;
@@ -66,6 +150,30 @@ function pruneSessionsForStorage(sessions: AISession[]): AISession[] {
   });
 }
 
+let latestAISessionsSnapshot: AISession[] | null = null;
+let latestAIActiveSessionMapSnapshot: Record<string, string | null> | null = null;
+
+function setLatestAISessionsSnapshot(sessions: AISession[]) {
+  latestAISessionsSnapshot = sessions;
+}
+
+function setLatestAIActiveSessionMapSnapshot(activeSessionIdMap: Record<string, string | null>) {
+  latestAIActiveSessionMapSnapshot = activeSessionIdMap;
+}
+
+function buildScopeKey(scope: AISessionScope) {
+  return `${scope.type}:${scope.targetId ?? ''}`;
+}
+
+function areHostIdsEqual(left?: string[], right?: string[]) {
+  const leftIds = left ?? [];
+  const rightIds = right ?? [];
+  if (leftIds.length !== rightIds.length) return false;
+
+  const rightSet = new Set(rightIds);
+  return leftIds.every((hostId) => rightSet.has(hostId));
+}
+
 export function useAIState() {
   // ── Provider Config ──
   const [providers, setProvidersRaw] = useState<ProviderConfig[]>(() =>
@@ -117,7 +225,9 @@ export function useAIState() {
     sessionsRef.current = sessions;
   }, [sessions]);
   // Per-scope active session: keyed by `${scopeType}:${scopeTargetId}`
-  const [activeSessionIdMap, setActiveSessionIdMapRaw] = useState<Record<string, string | null>>({});
+  const [activeSessionIdMap, setActiveSessionIdMapRaw] = useState<Record<string, string | null>>(() =>
+    localStorageAdapter.read<Record<string, string | null>>(STORAGE_KEY_AI_ACTIVE_SESSION_MAP) ?? {}
+  );
 
   // Per-agent model selection: remembers last selected model per agent
   const [agentModelMap, setAgentModelMapRaw] = useState<Record<string, string>>(() =>
@@ -129,8 +239,43 @@ export function useAIState() {
     localStorageAdapter.read<WebSearchConfig>(STORAGE_KEY_AI_WEB_SEARCH) ?? null
   );
 
+  useEffect(() => {
+    setLatestAISessionsSnapshot(sessions);
+  }, [sessions]);
+
+  useEffect(() => {
+    setLatestAIActiveSessionMapSnapshot(activeSessionIdMap);
+  }, [activeSessionIdMap]);
+
+  useEffect(() => {
+    const validSessionIds = new Set(sessions.map((session) => session.id));
+    let changed = false;
+    const nextActiveSessionIdMap: Record<string, string | null> = {};
+
+    for (const [scopeKey, sessionId] of Object.entries(activeSessionIdMap)) {
+      const nextSessionId = sessionId && validSessionIds.has(sessionId) ? sessionId : null;
+      nextActiveSessionIdMap[scopeKey] = nextSessionId;
+      if (nextSessionId !== sessionId) {
+        changed = true;
+      }
+    }
+
+    if (!changed) return;
+
+    setLatestAIActiveSessionMapSnapshot(nextActiveSessionIdMap);
+    localStorageAdapter.write(STORAGE_KEY_AI_ACTIVE_SESSION_MAP, nextActiveSessionIdMap);
+    setActiveSessionIdMapRaw(nextActiveSessionIdMap);
+    emitAIStateChanged(STORAGE_KEY_AI_ACTIVE_SESSION_MAP);
+  }, [sessions, activeSessionIdMap]);
+
   const setActiveSessionId = useCallback((scopeKey: string, id: string | null) => {
-    setActiveSessionIdMapRaw(prev => ({ ...prev, [scopeKey]: id }));
+    setActiveSessionIdMapRaw(prev => {
+      const next = { ...prev, [scopeKey]: id };
+      setLatestAIActiveSessionMapSnapshot(next);
+      localStorageAdapter.write(STORAGE_KEY_AI_ACTIVE_SESSION_MAP, next);
+      emitAIStateChanged(STORAGE_KEY_AI_ACTIVE_SESSION_MAP);
+      return next;
+    });
   }, []);
 
   const setAgentModel = useCallback((agentId: string, modelId: string) => {
@@ -303,9 +448,22 @@ export function useAIState() {
             setHostPermissionsRaw(perms ?? []);
             break;
           }
+          case STORAGE_KEY_AI_SESSIONS: {
+            const nextSessions = localStorageAdapter.read<AISession[]>(STORAGE_KEY_AI_SESSIONS) ?? [];
+            setLatestAISessionsSnapshot(nextSessions);
+            setSessionsRaw(nextSessions);
+            break;
+          }
           case STORAGE_KEY_AI_AGENT_MODEL_MAP:
             setAgentModelMapRaw(localStorageAdapter.read<Record<string, string>>(STORAGE_KEY_AI_AGENT_MODEL_MAP) ?? {});
             break;
+          case STORAGE_KEY_AI_ACTIVE_SESSION_MAP: {
+            const nextActiveSessionIdMap =
+              localStorageAdapter.read<Record<string, string | null>>(STORAGE_KEY_AI_ACTIVE_SESSION_MAP) ?? {};
+            setLatestAIActiveSessionMapSnapshot(nextActiveSessionIdMap);
+            setActiveSessionIdMapRaw(nextActiveSessionIdMap);
+            break;
+          }
           case STORAGE_KEY_AI_WEB_SEARCH:
             setWebSearchConfigRaw(localStorageAdapter.read<WebSearchConfig>(STORAGE_KEY_AI_WEB_SEARCH) ?? null);
             break;
@@ -315,7 +473,33 @@ export function useAIState() {
       }
     };
     window.addEventListener('storage', handleStorage);
-    return () => window.removeEventListener('storage', handleStorage);
+    const handleLocalStateChanged = (event: Event) => {
+      const key = (event as CustomEvent<{ key?: string }>).detail?.key;
+      if (!key) return;
+      switch (key) {
+        case STORAGE_KEY_AI_SESSIONS:
+          setSessionsRaw(
+            latestAISessionsSnapshot
+              ?? localStorageAdapter.read<AISession[]>(STORAGE_KEY_AI_SESSIONS)
+              ?? [],
+          );
+          return;
+        case STORAGE_KEY_AI_ACTIVE_SESSION_MAP:
+          setActiveSessionIdMapRaw(
+            latestAIActiveSessionMapSnapshot
+              ?? localStorageAdapter.read<Record<string, string | null>>(STORAGE_KEY_AI_ACTIVE_SESSION_MAP)
+              ?? {},
+          );
+          return;
+        default:
+          handleStorage({ key } as StorageEvent);
+      }
+    };
+    window.addEventListener(AI_STATE_CHANGED_EVENT, handleLocalStateChanged);
+    return () => {
+      window.removeEventListener('storage', handleStorage);
+      window.removeEventListener(AI_STATE_CHANGED_EVENT, handleLocalStateChanged);
+    };
   }, []);
 
   // ── Sync initial safety settings to MCP Server on mount ──
@@ -375,6 +559,7 @@ export function useAIState() {
     };
     setSessionsRaw(prev => {
       const next = [session, ...prev];
+      setLatestAISessionsSnapshot(next);
       persistSessions(next);
       return next;
     });
@@ -391,12 +576,19 @@ export function useAIState() {
     }
     setSessionsRaw(prev => {
       const next = prev.filter(s => s.id !== sessionId);
+      setLatestAISessionsSnapshot(next);
       persistSessions(next);
       return next;
     });
     if (scopeKey) {
       setActiveSessionIdMapRaw(prev => {
-        if (prev[scopeKey] === sessionId) return { ...prev, [scopeKey]: null };
+        if (prev[scopeKey] === sessionId) {
+          const next = { ...prev, [scopeKey]: null };
+          setLatestAIActiveSessionMapSnapshot(next);
+          localStorageAdapter.write(STORAGE_KEY_AI_ACTIVE_SESSION_MAP, next);
+          emitAIStateChanged(STORAGE_KEY_AI_ACTIVE_SESSION_MAP);
+          return next;
+        }
         return prev;
       });
     }
@@ -415,12 +607,19 @@ export function useAIState() {
       const next = prev.filter(s => {
         return !(s.scope.type === scopeType && s.scope.targetId === targetId);
       });
+      setLatestAISessionsSnapshot(next);
       persistSessions(next);
       return next;
     });
     const scopeKey = `${scopeType}:${targetId}`;
     setActiveSessionIdMapRaw(prev => {
-      if (prev[scopeKey] != null) return { ...prev, [scopeKey]: null };
+      if (prev[scopeKey] != null) {
+        const next = { ...prev, [scopeKey]: null };
+        setLatestAIActiveSessionMapSnapshot(next);
+        localStorageAdapter.write(STORAGE_KEY_AI_ACTIVE_SESSION_MAP, next);
+        emitAIStateChanged(STORAGE_KEY_AI_ACTIVE_SESSION_MAP);
+        return next;
+      }
       return prev;
     });
   }, [persistSessions]);
@@ -428,6 +627,7 @@ export function useAIState() {
   const updateSessionTitle = useCallback((sessionId: string, title: string) => {
     setSessionsRaw(prev => {
       const next = prev.map(s => s.id === sessionId ? { ...s, title, updatedAt: Date.now() } : s);
+      setLatestAISessionsSnapshot(next);
       persistSessions(next);
       return next;
     });
@@ -440,11 +640,67 @@ export function useAIState() {
           ? { ...s, externalSessionId, updatedAt: Date.now() }
           : s
       ));
+      setLatestAISessionsSnapshot(next);
       debouncedPersistSessions();
       return next;
     });
   }, [debouncedPersistSessions]);
 
+  const retargetSessionScope = useCallback((sessionId: string, scope: AISessionScope) => {
+    const currentSession = sessionsRef.current.find((session) => session.id === sessionId);
+    if (!currentSession) return;
+
+    const currentScope = currentSession.scope;
+    const scopeChanged =
+      currentScope.type !== scope.type
+      || currentScope.targetId !== scope.targetId
+      || !areHostIdsEqual(currentScope.hostIds, scope.hostIds);
+
+    const nextScopeKey = buildScopeKey(scope);
+    const currentScopeKey = buildScopeKey(currentScope);
+
+    if (scopeChanged) {
+      setSessionsRaw((prev) => {
+        let changed = false;
+        const next = prev.map((session) => {
+          if (session.id !== sessionId) return session;
+          changed = true;
+          // Clear stale ACP handle — retarget may run before orphan cleanup
+          return { ...session, scope, externalSessionId: undefined };
+        });
+
+        if (!changed) return prev;
+
+        sessionsRef.current = next;
+        setLatestAISessionsSnapshot(next);
+        persistSessions(next);
+        return next;
+      });
+    }
+
+    setActiveSessionIdMapRaw((prev) => {
+      let changed = false;
+      const next = { ...prev };
+
+      if (currentScopeKey !== nextScopeKey && next[currentScopeKey] === sessionId) {
+        delete next[currentScopeKey];
+        changed = true;
+      }
+
+      if (next[nextScopeKey] !== sessionId) {
+        next[nextScopeKey] = sessionId;
+        changed = true;
+      }
+
+      if (!changed) return prev;
+
+      setLatestAIActiveSessionMapSnapshot(next);
+      localStorageAdapter.write(STORAGE_KEY_AI_ACTIVE_SESSION_MAP, next);
+      emitAIStateChanged(STORAGE_KEY_AI_ACTIVE_SESSION_MAP);
+      return next;
+    });
+  }, [persistSessions]);
+
   // Maximum messages per session to prevent unbounded memory growth
   const MAX_MESSAGES_PER_SESSION = 500;
 
@@ -463,6 +719,7 @@ export function useAIState() {
         }
         return { ...s, messages: msgs, updatedAt: Date.now() };
       });
+      setLatestAISessionsSnapshot(next);
       debouncedPersistSessions();
       return next;
     });
@@ -476,6 +733,7 @@ export function useAIState() {
         msgs[msgs.length - 1] = updater(msgs[msgs.length - 1]);
         return { ...s, messages: msgs, updatedAt: Date.now() };
       });
+      setLatestAISessionsSnapshot(next);
       debouncedPersistSessions();
       return next;
     });
@@ -491,6 +749,7 @@ export function useAIState() {
         msgs[idx] = updater(msgs[idx]);
         return { ...s, messages: msgs, updatedAt: Date.now() };
       });
+      setLatestAISessionsSnapshot(next);
       debouncedPersistSessions();
       return next;
     });
@@ -503,29 +762,21 @@ export function useAIState() {
     }
     setSessionsRaw(prev => {
       const next = prev.map(s => s.id === sessionId ? { ...s, messages: [], updatedAt: Date.now() } : s);
+      setLatestAISessionsSnapshot(next);
       persistSessions(next);
       return next;
     });
   }, [persistSessions]);
 
   const cleanupOrphanedSessions = useCallback((activeTargetIds: Set<string>) => {
-    const removedSessionIds = sessionsRef.current
-      .filter(s => s.scope.targetId && !activeTargetIds.has(s.scope.targetId))
-      .map(s => s.id);
-    cleanupAcpSessions(removedSessionIds);
-    setSessionsRaw(prev => {
-      const next = prev.filter(s => {
-        // Keep sessions without a targetId (global scope)
-        if (!s.scope.targetId) return true;
-        // Keep sessions whose target still exists
-        return activeTargetIds.has(s.scope.targetId);
-      });
-      if (next.length !== prev.length) {
-        persistSessions(next);
-      }
-      return next;
-    });
-  }, [persistSessions]);
+    cleanupOrphanedAISessions(activeTargetIds);
+    setSessionsRaw(latestAISessionsSnapshot ?? localStorageAdapter.read<AISession[]>(STORAGE_KEY_AI_SESSIONS) ?? []);
+    setActiveSessionIdMapRaw(
+      latestAIActiveSessionMapSnapshot
+        ?? localStorageAdapter.read<Record<string, string | null>>(STORAGE_KEY_AI_ACTIVE_SESSION_MAP)
+        ?? {},
+    );
+  }, []);
 
   // ── Provider CRUD helpers ──
   const addProvider = useCallback((provider: ProviderConfig) => {
@@ -602,6 +853,7 @@ export function useAIState() {
     deleteSessionsByTarget,
     updateSessionTitle,
     updateSessionExternalSessionId,
+    retargetSessionScope,
     addMessageToSession,
     updateLastMessage,
     updateMessageById,

application/state/useAutoSync.ts

@@ -7,7 +7,7 @@
  * - Debounced sync to avoid too frequent API calls
  */
 
-import { useCallback, useEffect, useRef } from 'react';
+import { useCallback, useEffect, useRef, useState } from 'react';
 import { useCloudSync } from './useCloudSync';
 import { useI18n } from '../i18n/I18nProvider';
 import { getCloudSyncManager } from '../../infrastructure/services/CloudSyncManager';
@@ -16,11 +16,11 @@ import {
   findSyncPayloadEncryptedCredentialPaths,
 } from '../../domain/credentials';
 import { isProviderReadyForSync, type CloudProvider, type SyncPayload } from '../../domain/sync';
-import { collectSyncableSettings } from '../../domain/syncPayload';
+import { collectSyncableSettings } from '../syncPayload';
 import { STORAGE_KEY_PORT_FORWARDING } from '../../infrastructure/config/storageKeys';
 import { localStorageAdapter } from '../../infrastructure/persistence/localStorageAdapter';
 import { getEffectiveKnownHosts } from '../../infrastructure/syncHelpers';
-import { toast } from '../../components/ui/toast';
+import { notify } from '../notification';
 
 interface AutoSyncConfig {
   // Data to sync
@@ -60,6 +60,14 @@ export const useAutoSync = (config: AutoSyncConfig) => {
   const isSyncRunningRef = useRef(false);
   const skipNextSyncRef = useRef(false);
 
+  // Listen for SFTP bookmark changes to trigger auto-sync
+  const [bookmarksVersion, setBookmarksVersion] = useState(0);
+  useEffect(() => {
+    const handler = () => setBookmarksVersion((v) => v + 1);
+    window.addEventListener('sftp-bookmarks-changed', handler);
+    return () => window.removeEventListener('sftp-bookmarks-changed', handler);
+  }, []);
+
   const getSyncSnapshot = useCallback(() => {
     let effectivePFRules = config.portForwardingRules;
     if (!effectivePFRules || effectivePFRules.length === 0) {
@@ -189,7 +197,7 @@ export const useAutoSync = (config: AutoSyncConfig) => {
         throw error;
       }
       console.error('[AutoSync] Sync failed:', error);
-      toast.error(
+      notify.error(
         error instanceof Error ? error.message : t('common.unknownError'),
         t('sync.autoSync.failedTitle'),
       );
@@ -218,7 +226,6 @@ export const useAutoSync = (config: AutoSyncConfig) => {
     if (!connectedProvider) return;
     
     try {
-      console.log('[AutoSync] Checking remote version...');
       // Load base BEFORE downloading (downloadFromProvider overwrites the base)
       const base = await manager.loadSyncBase(connectedProvider);
       const remotePayload = await sync.downloadFromProvider(connectedProvider);
@@ -228,12 +235,11 @@ export const useAutoSync = (config: AutoSyncConfig) => {
         const localPayload = buildPayload();
         const mergeResult = mergeSyncPayloads(base, localPayload, remotePayload);
 
-        console.log('[AutoSync] Remote is newer, merged:', mergeResult.summary);
         config.onApplyPayload(mergeResult.payload);
         // Don't save base or skip auto-sync — let the data-change effect
         // naturally trigger an upload of the merged payload (which will
         // go through syncAllProviders and save base on success).
-        toast.success(t('sync.autoSync.syncedMessage'), t('sync.autoSync.syncedTitle'));
+        notify.success(t('sync.autoSync.syncedMessage'), t('sync.autoSync.syncedTitle'));
       }
     } catch (error) {
       console.error('[AutoSync] Failed to check remote version:', error);
@@ -282,7 +288,6 @@ export const useAutoSync = (config: AutoSyncConfig) => {
     
     // Debounce sync by 3 seconds
     syncTimeoutRef.current = setTimeout(() => {
-      console.log('[AutoSync] Data changed, syncing...');
       syncNow();
     }, 3000);
     
@@ -291,7 +296,7 @@ export const useAutoSync = (config: AutoSyncConfig) => {
         clearTimeout(syncTimeoutRef.current);
       }
     };
-  }, [sync.hasAnyConnectedProvider, sync.autoSyncEnabled, sync.isUnlocked, sync.isSyncing, getDataHash, syncNow, config.settingsVersion]);
+  }, [sync.hasAnyConnectedProvider, sync.autoSyncEnabled, sync.isUnlocked, sync.isSyncing, getDataHash, syncNow, config.settingsVersion, bookmarksVersion]);
   
   // Check remote version on startup/unlock
   useEffect(() => {

application/state/useCloudSync.ts

@@ -6,7 +6,7 @@
  * Uses useSyncExternalStore for real-time state synchronization across all components.
  */
 
-import { useCallback, useEffect, useMemo, useRef, useState, useSyncExternalStore } from 'react';
+import { useCallback, useEffect, useMemo, useRef, useSyncExternalStore } from 'react';
 import {
   type CloudProvider,
   type SecurityState,
@@ -24,7 +24,6 @@ import {
   isProviderReadyForSync,
 } from '../../domain/sync';
 import {
-  CloudSyncManager,
   getCloudSyncManager,
   type SyncManagerState,
 } from '../../infrastructure/services/CloudSyncManager';
@@ -82,8 +81,10 @@ export interface CloudSyncHook {
     code: string,
     redirectUri: string
   ) => Promise<void>;
+  cancelOAuthConnect: () => void;
   disconnectProvider: (provider: CloudProvider) => Promise<void>;
-  
+  resetProviderStatus: (provider: CloudProvider) => void;
+
   // Sync Actions
   syncNow: (payload: SyncPayload) => Promise<Map<CloudProvider, SyncResult>>;
   syncToProvider: (provider: CloudProvider, payload: SyncPayload) => Promise<SyncResult>;
@@ -103,12 +104,6 @@ export interface CloudSyncHook {
   refresh: () => void;
 }
 
-export interface GitHubAuthState {
-  isAuthenticating: boolean;
-  deviceFlowState: DeviceFlowState | null;
-  error: string | null;
-}
-
 // ============================================================================
 // Hook Implementation
 // ============================================================================
@@ -127,17 +122,6 @@ const getSnapshot = (): SyncManagerState => {
 };
 
 export const useCloudSync = (): CloudSyncHook => {
-  // Force update mechanism to ensure React re-renders
-  const [, forceUpdate] = useState(0);
-  
-  // Subscribe to state changes and force update
-  useEffect(() => {
-    const unsubscribe = manager.subscribeToStateChanges(() => {
-      forceUpdate(n => n + 1);
-    });
-    return unsubscribe;
-  }, []);
-  
   // Use useSyncExternalStore for real-time state sync across all components
   const state = useSyncExternalStore(subscribe, getSnapshot, getSnapshot);
 
@@ -273,7 +257,7 @@ export const useCloudSync = (): CloudSyncHook => {
       throw new Error('Unexpected auth type');
     }
     const data = result.data as { url: string; redirectUri: string };
-    
+
     // Start OAuth callback server in Electron and wait for authorization
     const bridge = netcattyBridge.get();
     const startCallback = bridge?.startOAuthCallback;
@@ -281,32 +265,44 @@ export const useCloudSync = (): CloudSyncHook => {
       // Get state from adapter for CSRF protection
       const adapter = manager.getAdapter('google') as { getPKCEState?: () => string | null } | undefined;
       const expectedState = adapter?.getPKCEState?.() || undefined;
-      
-      // Start callback server and open browser
+
+      // Start callback server and open system browser
       const callbackPromise = startCallback(expectedState);
-      
-      // Open browser after starting server
-      setTimeout(() => {
-        window.open(data.url, "_blank", "width=600,height=700,noopener,noreferrer");
-      }, 100);
-      
-      // Wait for callback
-      const { code } = await callbackPromise;
-      
-      // Complete auth with the received code
-      await manager.completePKCEAuth('google', code, data.redirectUri);
+
+      // Use system browser to avoid white-screen issues in popup windows (#563)
+      // Race: if browser launch fails, surface the error immediately
+      let openTimer: ReturnType<typeof setTimeout> | null = null;
+      const browserPromise = new Promise<never>((_resolve, reject) => {
+        openTimer = setTimeout(async () => {
+          try {
+            await bridge?.openExternal(data.url);
+          } catch (err) {
+            bridge?.cancelOAuthCallback?.();
+            reject(err instanceof Error ? err : new Error('Failed to open browser for authentication'));
+          }
+        }, 100);
+      });
+
+      try {
+        const { code } = await Promise.race([callbackPromise, browserPromise]);
+
+        // Complete auth with the received code
+        await manager.completePKCEAuth('google', code, data.redirectUri);
+      } finally {
+        if (openTimer) clearTimeout(openTimer);
+      }
     }
-    
+
     return data.url;
   }, []);
-  
+
   const connectOneDrive = useCallback(async (): Promise<string> => {
     const result = await manager.startProviderAuth('onedrive');
     if (result.type !== 'url') {
       throw new Error('Unexpected auth type');
     }
     const data = result.data as { url: string; redirectUri: string };
-    
+
     // Start OAuth callback server in Electron and wait for authorization
     const bridge = netcattyBridge.get();
     const startCallback = bridge?.startOAuthCallback;
@@ -314,22 +310,33 @@ export const useCloudSync = (): CloudSyncHook => {
       // Get state from adapter for CSRF protection
       const adapter = manager.getAdapter('onedrive') as { getPKCEState?: () => string | null } | undefined;
       const expectedState = adapter?.getPKCEState?.() || undefined;
-      
-      // Start callback server and open browser
+
+      // Start callback server and open system browser
       const callbackPromise = startCallback(expectedState);
-      
-      // Open browser after starting server
-      setTimeout(() => {
-        window.open(data.url, "_blank", "width=600,height=700,noopener,noreferrer");
-      }, 100);
-      
-      // Wait for callback
-      const { code } = await callbackPromise;
-      
-      // Complete auth with the received code
-      await manager.completePKCEAuth('onedrive', code, data.redirectUri);
+
+      // Use system browser to avoid white-screen issues in popup windows (#563)
+      let openTimer: ReturnType<typeof setTimeout> | null = null;
+      const browserPromise = new Promise<never>((_resolve, reject) => {
+        openTimer = setTimeout(async () => {
+          try {
+            await bridge?.openExternal(data.url);
+          } catch (err) {
+            bridge?.cancelOAuthCallback?.();
+            reject(err instanceof Error ? err : new Error('Failed to open browser for authentication'));
+          }
+        }, 100);
+      });
+
+      try {
+        const { code } = await Promise.race([callbackPromise, browserPromise]);
+
+        // Complete auth with the received code
+        await manager.completePKCEAuth('onedrive', code, data.redirectUri);
+      } finally {
+        if (openTimer) clearTimeout(openTimer);
+      }
     }
-    
+
     return data.url;
   }, []);
   
@@ -345,6 +352,10 @@ export const useCloudSync = (): CloudSyncHook => {
     await manager.disconnectProvider(provider);
   }, []);
 
+  const resetProviderStatus = useCallback((provider: CloudProvider): void => {
+    manager.resetProviderStatus(provider);
+  }, []);
+
   const connectWebDAV = useCallback(async (config: WebDAVConfig): Promise<void> => {
     await manager.connectConfigProvider('webdav', config);
   }, []);
@@ -353,6 +364,11 @@ export const useCloudSync = (): CloudSyncHook => {
     await manager.connectConfigProvider('s3', config);
   }, []);
   
+  const cancelOAuthConnect = useCallback(() => {
+    const bridge = netcattyBridge.get();
+    bridge?.cancelOAuthCallback?.();
+  }, []);
+
   // ========== Settings ==========
   
   const setAutoSync = useCallback((enabled: boolean, intervalMinutes?: number) => {
@@ -450,8 +466,10 @@ export const useCloudSync = (): CloudSyncHook => {
     connectWebDAV,
     connectS3,
     completePKCEAuth,
+    cancelOAuthConnect,
     disconnectProvider,
-    
+    resetProviderStatus,
+
     // Sync Actions
     syncNow: syncNowWithUnlock,
     syncToProvider: syncToProviderWithUnlock,
@@ -472,60 +490,4 @@ export const useCloudSync = (): CloudSyncHook => {
   };
 };
 
-// ============================================================================
-// Convenience Hooks
-// ============================================================================
-
-/**
- * Hook for just the security state (lighter weight)
- */
-export const useSecurityState = () => {
-  const [manager] = useState<CloudSyncManager>(() => getCloudSyncManager());
-  const [securityState, setSecurityState] = useState<SecurityState>(
-    () => manager.getSecurityState()
-  );
-  
-  useEffect(() => {
-    const unsubscribe = manager.subscribe((event) => {
-      if (event.type === 'SECURITY_STATE_CHANGED') {
-        setSecurityState(event.state);
-      }
-    });
-    return unsubscribe;
-  }, [manager]);
-  
-  return {
-    securityState,
-    isUnlocked: securityState === 'UNLOCKED',
-    isLocked: securityState === 'LOCKED',
-    hasNoKey: securityState === 'NO_KEY',
-  };
-};
-
-/**
- * Hook for provider status indicators
- */
-export const useProviderStatus = (provider: CloudProvider) => {
-  const [manager] = useState<CloudSyncManager>(() => getCloudSyncManager());
-  const [connection, setConnection] = useState<ProviderConnection>(
-    () => manager.getProviderConnection(provider)
-  );
-  
-  useEffect(() => {
-    const unsubscribe = manager.subscribe(() => {
-      setConnection(manager.getProviderConnection(provider));
-    });
-    return unsubscribe;
-  }, [manager, provider]);
-  
-  return {
-    ...connection,
-    isConnected: isProviderReadyForSync(connection),
-    isSyncing: connection.status === 'syncing',
-    hasError: connection.status === 'error',
-    dotColor: getSyncDotColor(connection.status),
-    lastSyncFormatted: formatLastSync(connection.lastSync),
-  };
-};
-
 export default useCloudSync;

application/state/useGlobalHotkeys.ts

@@ -1,7 +1,7 @@
 import { useCallback, useEffect, useRef } from 'react';
 import { KeyBinding, matchesKeyBinding } from '../../domain/models';
 
-export interface HotkeyActions {
+interface HotkeyActions {
   // Tab management
   switchToTab: (tabIndex: number) => void;
   nextTab: () => void;

application/state/useImmersiveMode.ts

@@ -0,0 +1,214 @@
+/**
+ * Immersive Mode — makes the entire UI chrome adapt colors to match the active terminal's theme.
+ *
+ * Performance strategy:
+ * - All built-in themes' CSS strings are pre-computed at module load (zero cost at switch time)
+ * - Custom/unknown themes are computed lazily and cached
+ * - A single `<style>` tag with `!important` overrides inline CSS variables atomically
+ * - `useLayoutEffect` ensures the update happens before browser paint (no flash)
+ */
+import { useEffect, useLayoutEffect, useRef } from 'react';
+import { TerminalTheme } from '../../domain/models';
+import { TERMINAL_THEMES } from '../../infrastructure/config/terminalThemes';
+import { netcattyBridge } from '../../infrastructure/services/netcattyBridge';
+
+// ---------------------------------------------------------------------------
+// Hex → HSL conversion (returns "H S% L%" without the hsl() wrapper)
+// ---------------------------------------------------------------------------
+
+function hexToHsl(hex: string): string {
+  const r = parseInt(hex.slice(1, 3), 16) / 255;
+  const g = parseInt(hex.slice(3, 5), 16) / 255;
+  const b = parseInt(hex.slice(5, 7), 16) / 255;
+  const max = Math.max(r, g, b);
+  const min = Math.min(r, g, b);
+  let h = 0;
+  let s = 0;
+  const l = (max + min) / 2;
+  if (max !== min) {
+    const d = max - min;
+    s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
+    switch (max) {
+      case r: h = ((g - b) / d + (g < b ? 6 : 0)) / 6; break;
+      case g: h = ((b - r) / d + 2) / 6; break;
+      case b: h = ((r - g) / d + 4) / 6; break;
+    }
+  }
+  return `${Math.round(h * 3600) / 10} ${Math.round(s * 1000) / 10}% ${Math.round(l * 1000) / 10}%`;
+}
+
+function adjustLightness(hsl: string, delta: number): string {
+  const parts = hsl.split(/\s+/);
+  const newL = Math.max(0, Math.min(100, parseFloat(parts[2]) + delta));
+  return `${parts[0]} ${parts[1]} ${Math.round(newL * 10) / 10}%`;
+}
+
+function adjustSaturation(hsl: string, factor: number): string {
+  const parts = hsl.split(/\s+/);
+  const newS = Math.max(0, Math.min(100, parseFloat(parts[1]) * factor));
+  return `${parts[0]} ${Math.round(newS * 10) / 10}% ${parts[2]}`;
+}
+
+// ---------------------------------------------------------------------------
+// Build the CSS rule string from a TerminalTheme
+// ---------------------------------------------------------------------------
+
+const CSS_VARS = [
+  'background', 'foreground', 'card', 'card-foreground',
+  'popover', 'popover-foreground', 'primary', 'primary-foreground',
+  'secondary', 'secondary-foreground', 'muted', 'muted-foreground',
+  'accent', 'accent-foreground', 'destructive', 'destructive-foreground',
+  'border', 'input', 'ring',
+] as const;
+
+function buildImmersiveCss(theme: TerminalTheme): string {
+  const bg = hexToHsl(theme.colors.background);
+  const fg = hexToHsl(theme.colors.foreground);
+  const cursor = hexToHsl(theme.colors.cursor);
+  const isDark = theme.type === 'dark';
+
+  const card = adjustLightness(bg, isDark ? 4 : -3);
+  const secondary = adjustLightness(bg, isDark ? 6 : -5);
+  const muted = adjustLightness(bg, isDark ? 10 : -8);
+  const mutedFg = adjustSaturation(adjustLightness(fg, isDark ? -20 : 20), 0.5);
+  const border = adjustLightness(bg, isDark ? 12 : -10);
+  const cursorL = parseFloat(cursor.split(' ')[2] ?? '50');
+  const primaryFg = cursorL > 55 ? '0 0% 0%' : '0 0% 100%';
+
+  const values = [
+    bg, fg, card, fg,         // background, foreground, card, card-foreground
+    card, fg,                 // popover, popover-foreground
+    cursor, primaryFg,        // primary, primary-foreground
+    secondary, fg,            // secondary, secondary-foreground
+    muted, mutedFg,           // muted, muted-foreground
+    cursor, primaryFg,        // accent, accent-foreground
+    '0 70% 50%', '0 0% 100%', // destructive, destructive-foreground
+    border, border, cursor,   // border, input, ring
+  ];
+
+  const rules = CSS_VARS.map((name, i) => `--${name}: ${values[i]} !important`).join('; ');
+  return `:root { ${rules}; }`;
+}
+
+// ---------------------------------------------------------------------------
+// Pre-compute CSS for all built-in themes at module load — O(1) lookup at switch time
+// ---------------------------------------------------------------------------
+
+const cssCache = new Map<string, string>();
+
+// Fingerprint: id + type + 3 key colors (detects in-place edits including dark↔light)
+function themeFingerprint(t: TerminalTheme): string {
+  return `${t.id}\0${t.type}\0${t.colors.background}\0${t.colors.foreground}\0${t.colors.cursor}`;
+}
+
+// Pre-compute built-in themes
+for (const theme of TERMINAL_THEMES) {
+  cssCache.set(themeFingerprint(theme), buildImmersiveCss(theme));
+}
+
+/** Get (or lazily compute & cache) the immersive CSS for a theme. */
+function getImmersiveCss(theme: TerminalTheme): string {
+  const fp = themeFingerprint(theme);
+  let css = cssCache.get(fp);
+  if (!css) {
+    css = buildImmersiveCss(theme);
+    cssCache.set(fp, css);
+  }
+  return css;
+}
+
+// ---------------------------------------------------------------------------
+// Style tag management
+// ---------------------------------------------------------------------------
+
+const STYLE_ID = 'netcatty-immersive-override';
+
+function applyImmersiveStyle(css: string, isDark: boolean, bg: string) {
+  const root = document.documentElement;
+  const targetClass = isDark ? 'dark' : 'light';
+  if (!root.classList.contains(targetClass)) {
+    root.classList.remove('light', 'dark');
+    root.classList.add(targetClass);
+  }
+  let style = document.getElementById(STYLE_ID) as HTMLStyleElement | null;
+  if (!style) {
+    style = document.createElement('style');
+    style.id = STYLE_ID;
+    document.head.appendChild(style);
+  }
+  style.textContent = css;
+  // Sync native Electron window chrome
+  netcattyBridge.get()?.setTheme?.(isDark ? 'dark' : 'light');
+  netcattyBridge.get()?.setBackgroundColor?.(bg);
+}
+
+function removeImmersiveStyle() {
+  document.getElementById(STYLE_ID)?.remove();
+}
+
+// ---------------------------------------------------------------------------
+// Hook
+// ---------------------------------------------------------------------------
+
+export function useImmersiveMode({
+  isImmersive,
+  activeTabId,
+  activeTerminalTheme,
+  restoreOriginalTheme,
+}: {
+  isImmersive: boolean;
+  activeTabId: string;
+  activeTerminalTheme: TerminalTheme | null;
+  restoreOriginalTheme: () => void;
+}) {
+  const overrideActiveRef = useRef(false);
+  const appliedFpRef = useRef<string | null>(null);
+  const restoreRef = useRef(restoreOriginalTheme);
+  restoreRef.current = restoreOriginalTheme;
+
+  const isTerminalTab = activeTabId !== 'vault' && activeTabId !== 'sftp' && !activeTabId.startsWith('log-');
+
+  // APPLY: useLayoutEffect — runs before paint, O(1) Map lookup, single DOM write
+  useLayoutEffect(() => {
+    if (isImmersive && isTerminalTab && activeTerminalTheme) {
+      const fp = themeFingerprint(activeTerminalTheme);
+      if (appliedFpRef.current === fp) return;
+      overrideActiveRef.current = true;
+      appliedFpRef.current = fp;
+      applyImmersiveStyle(getImmersiveCss(activeTerminalTheme), activeTerminalTheme.type === 'dark', activeTerminalTheme.colors.background);
+    }
+  }, [isImmersive, isTerminalTab, activeTerminalTheme]);
+
+  // RESTORE: useEffect — runs after paint, with fade overlay
+  useEffect(() => {
+    if (isImmersive && isTerminalTab && activeTerminalTheme) return;
+    if (!overrideActiveRef.current) return;
+    overrideActiveRef.current = false;
+    appliedFpRef.current = null;
+    const bg = getComputedStyle(document.documentElement).getPropertyValue('--background').trim();
+    const overlay = document.createElement('div');
+    overlay.className = 'immersive-fade-overlay';
+    overlay.style.backgroundColor = `hsl(${bg})`;
+    document.body.appendChild(overlay);
+    removeImmersiveStyle();
+    restoreOriginalTheme();
+    requestAnimationFrame(() => {
+      overlay.classList.add('fade-out');
+      overlay.addEventListener('transitionend', () => overlay.remove(), { once: true });
+    });
+    const fallback = setTimeout(() => { if (overlay.parentNode) overlay.remove(); }, 400);
+    return () => { clearTimeout(fallback); if (overlay.parentNode) overlay.remove(); };
+  }, [isImmersive, isTerminalTab, activeTerminalTheme, restoreOriginalTheme]);
+
+  // Cleanup on unmount
+  useEffect(() => {
+    return () => {
+      removeImmersiveStyle();
+      appliedFpRef.current = null;
+      if (overrideActiveRef.current) {
+        overrideActiveRef.current = false;
+        restoreRef.current();
+      }
+    };
+  }, []);
+}

application/state/useManagedSourceSync.ts

@@ -103,8 +103,6 @@ export const useManagedSourceSync = ({
 
   const writeSshConfigToFile = useCallback(
     async (source: ManagedSource, managedHosts: Host[]) => {
-      console.log(`[ManagedSourceSync] writeSshConfigToFile called for ${source.groupName}, hosts:`, managedHosts.length);
-
       const bridge = netcattyBridge.get();
       if (!bridge?.writeLocalFile) {
         console.warn("[ManagedSourceSync] writeLocalFile not available");
@@ -121,14 +119,9 @@ export const useManagedSourceSync = ({
           managedHosts,
           hosts,
         );
-        console.log(`[ManagedSourceSync] Final content (${finalContent.length} chars)`);
-
         const encoder = new TextEncoder();
         const buffer = encoder.encode(finalContent);
-        console.log(`[ManagedSourceSync] Writing to ${source.filePath}`);
-
         await bridge.writeLocalFile(source.filePath, buffer.buffer as ArrayBuffer);
-        console.log(`[ManagedSourceSync] Write successful`);
         return true;
       } catch (err) {
         console.error("[ManagedSourceSync] Failed to write SSH config:", err);
@@ -159,12 +152,8 @@ export const useManagedSourceSync = ({
   // This should be called before deleting a managed group to avoid stale entries
   const clearAndRemoveSource = useCallback(
     async (source: ManagedSource) => {
-      console.log(`[ManagedSourceSync] Clearing managed block for ${source.groupName}`);
       // Write empty hosts list to clear the managed block
       const success = await writeSshConfigToFile(source, []);
-      if (success) {
-        console.log(`[ManagedSourceSync] Managed block cleared, removing source`);
-      }
       // Remove the source regardless of write success
       const updatedSources = managedSourcesRef.current.filter((s) => s.id !== source.id);
       onUpdateManagedSources(updatedSources);
@@ -179,19 +168,14 @@ export const useManagedSourceSync = ({
     async (sources: ManagedSource[]) => {
       if (sources.length === 0) return;
 
-      console.log(`[ManagedSourceSync] Clearing ${sources.length} managed blocks`);
-
       // Clear all files in parallel
-      const results = await Promise.all(
+      await Promise.all(
         sources.map(async (source) => {
           const success = await writeSshConfigToFile(source, []);
           return { sourceId: source.id, success };
         })
       );
 
-      const successCount = results.filter(r => r.success).length;
-      console.log(`[ManagedSourceSync] Cleared ${successCount}/${sources.length} managed blocks`);
-
       // Remove all sources atomically in a single update
       const sourceIdsToRemove = new Set(sources.map(s => s.id));
       const updatedSources = managedSourcesRef.current.filter(
@@ -273,8 +257,6 @@ export const useManagedSourceSync = ({
         const prevManaged = prevHostsBySource.get(source.id) || [];
         const currManaged = currHostsBySource.get(source.id) || [];
 
-        console.log(`[ManagedSourceSync] Source ${source.groupName}: prev=${prevManaged.length}, curr=${currManaged.length}`);
-
         if (prevManaged.length !== currManaged.length) {
           changedSourceIds.add(source.id);
           continue;
@@ -328,7 +310,6 @@ export const useManagedSourceSync = ({
     }
 
     if (changedSourceIds.size > 0) {
-      console.log(`[ManagedSourceSync] Syncing sources:`, Array.from(changedSourceIds));
       syncInProgressRef.current = true;
 
       Promise.all(

application/state/usePortForwardingAutoStart.ts

@@ -3,8 +3,8 @@
  * This should be used at the App level to ensure auto-start happens
  * when the application starts, not when the user navigates to the port forwarding page.
  */
-import { useEffect, useRef } from "react";
-import { Host, PortForwardingRule } from "../../domain/models";
+import { useCallback, useEffect, useRef } from "react";
+import { Host, Identity, PortForwardingRule, SSHKey } from "../../domain/models";
 import { STORAGE_KEY_PORT_FORWARDING } from "../../infrastructure/config/storageKeys";
 import { localStorageAdapter } from "../../infrastructure/persistence/localStorageAdapter";
 import {
@@ -17,7 +17,8 @@ import { logger } from "../../lib/logger";
 
 export interface UsePortForwardingAutoStartOptions {
   hosts: Host[];
-  keys: { id: string; privateKey: string; passphrase: string }[];
+  keys: SSHKey[];
+  identities: Identity[];
 }
 
 /**
@@ -27,10 +28,37 @@ export interface UsePortForwardingAutoStartOptions {
 export const usePortForwardingAutoStart = ({
   hosts,
   keys,
+  identities,
 }: UsePortForwardingAutoStartOptions): void => {
   const autoStartExecutedRef = useRef(false);
   const hostsRef = useRef<Host[]>(hosts);
-  const keysRef = useRef<{ id: string; privateKey: string; passphrase: string }[]>(keys);
+  const keysRef = useRef<SSHKey[]>(keys);
+  const identitiesRef = useRef<Identity[]>(identities);
+
+  const isHostAuthReady = useCallback((host: Host, seen = new Set<string>()): boolean => {
+    if (!host || seen.has(host.id)) return true;
+    seen.add(host.id);
+
+    if (host.identityId) {
+      const identity = identitiesRef.current.find((candidate) => candidate.id === host.identityId);
+      if (!identity) return false;
+      if (identity.keyId && !keysRef.current.some((key) => key.id === identity.keyId)) {
+        return false;
+      }
+    }
+    if (host.identityFileId && !keysRef.current.some((key) => key.id === host.identityFileId)) {
+      return false;
+    }
+
+    const chainIds = host.hostChain?.hostIds || [];
+    for (const chainId of chainIds) {
+      const chainHost = hostsRef.current.find((candidate) => candidate.id === chainId);
+      if (!chainHost) return false;
+      if (!isHostAuthReady(chainHost, seen)) return false;
+    }
+
+    return true;
+  }, []);
 
   // Keep refs in sync
   useEffect(() => {
@@ -41,6 +69,10 @@ export const usePortForwardingAutoStart = ({
     keysRef.current = keys;
   }, [keys]);
 
+  useEffect(() => {
+    identitiesRef.current = identities;
+  }, [identities]);
+
   // Set up the reconnect callback
   useEffect(() => {
     const handleReconnect = async (
@@ -62,7 +94,7 @@ export const usePortForwardingAutoStart = ({
         return { success: false, error: "Host not found" };
       }
 
-      return startPortForward(rule, host, keysRef.current, onStatusChange, true);
+      return startPortForward(rule, host, hostsRef.current, keysRef.current, identitiesRef.current, onStatusChange, true);
     };
 
     setReconnectCallback(handleReconnect);
@@ -76,6 +108,17 @@ export const usePortForwardingAutoStart = ({
     if (autoStartExecutedRef.current) return;
     if (hosts.length === 0) return;
 
+    const storedRules = localStorageAdapter.read<PortForwardingRule[]>(
+      STORAGE_KEY_PORT_FORWARDING,
+    ) ?? [];
+    const pendingAutoStartRules = storedRules.filter((rule) => rule.autoStart && rule.hostId);
+    if (pendingAutoStartRules.some((rule) => {
+      const host = hosts.find((candidate) => candidate.id === rule.hostId);
+      return !host || !isHostAuthReady(host);
+    })) {
+      return;
+    }
+
     // Mark as executed immediately to prevent duplicate runs
     // (React StrictMode or dependency changes could cause re-runs)
     autoStartExecutedRef.current = true;
@@ -108,7 +151,9 @@ export const usePortForwardingAutoStart = ({
           void startPortForward(
             rule,
             host,
+            hosts,
             keys,
+            identities,
             (status, error) => {
               // Update the rule status in storage
               const currentRules = localStorageAdapter.read<PortForwardingRule[]>(
@@ -135,5 +180,5 @@ export const usePortForwardingAutoStart = ({
     };
 
     void runAutoStart();
-  }, [hosts, keys]);
+  }, [hosts, identities, isHostAuthReady, keys]);
 };

application/state/usePortForwardingState.ts

@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useMemo, useState } from "react";
-import { Host, PortForwardingRule } from "../../domain/models";
+import { Host, Identity, PortForwardingRule, SSHKey } from "../../domain/models";
 import {
   STORAGE_KEY_PF_PREFER_FORM_MODE,
   STORAGE_KEY_PF_VIEW_MODE,
@@ -63,7 +63,9 @@ export interface UsePortForwardingStateResult {
   startTunnel: (
     rule: PortForwardingRule,
     host: Host,
-    keys: { id: string; privateKey: string; passphrase: string }[],
+    hosts: Host[],
+    keys: SSHKey[],
+    identities: Identity[],
     onStatusChange?: (status: PortForwardingRule["status"], error?: string) => void,
     enableReconnect?: boolean,
   ) => Promise<{ success: boolean; error?: string }>;
@@ -377,14 +379,16 @@ export const usePortForwardingState = (): UsePortForwardingStateResult => {
     async (
       rule: PortForwardingRule,
       host: Host,
-      keys: { id: string; privateKey: string; passphrase: string }[],
+      hosts: Host[],
+      keys: SSHKey[],
+      identities: Identity[],
       onStatusChange?: (
         status: PortForwardingRule["status"],
         error?: string,
       ) => void,
       enableReconnect = false,
     ) => {
-      return startPortForward(rule, host, keys, (status, error) => {
+      return startPortForward(rule, host, hosts, keys, identities, (status, error) => {
         setRuleStatus(rule.id, status, error);
         onStatusChange?.(status, error ?? undefined);
       }, enableReconnect);

application/state/useSessionState.ts

@@ -38,7 +38,9 @@ export const useSessionState = () => {
   // Log views: stores open log replay tabs
   const [logViews, setLogViews] = useState<LogView[]>([]);
 
-  const createLocalTerminal = useCallback(() => {
+  const createLocalTerminal = useCallback((options?: {
+    shellType?: TerminalSession['shellType'];
+  }) => {
     const sessionId = crypto.randomUUID();
     const localHostId = `local-${sessionId}`;
     const newSession: TerminalSession = {
@@ -48,13 +50,15 @@ export const useSessionState = () => {
       hostname: 'localhost',
       username: 'local',
       status: 'connecting',
+      protocol: 'local',
+      shellType: options?.shellType,
     };
     setSessions(prev => [...prev, newSession]);
     setActiveTabId(sessionId);
     return sessionId;
   }, [setActiveTabId]);
 
-  const createSerialSession = useCallback((config: SerialConfig) => {
+  const createSerialSession = useCallback((config: SerialConfig, options?: { charset?: string }) => {
     const sessionId = crypto.randomUUID();
     const serialHostId = `serial-${sessionId}`;
     const portName = config.path.split('/').pop() || config.path;
@@ -67,6 +71,7 @@ export const useSessionState = () => {
       status: 'connecting',
       protocol: 'serial',
       serialConfig: config,
+      charset: options?.charset,
     };
     setSessions(prev => [...prev, newSession]);
     setActiveTabId(sessionId);
@@ -99,6 +104,7 @@ export const useSessionState = () => {
         status: 'connecting',
         protocol: 'serial',
         serialConfig: serialConfig,
+        charset: host.charset,
       };
       setSessions(prev => [...prev, newSession]);
       setActiveTabId(sessionId);
@@ -116,6 +122,7 @@ export const useSessionState = () => {
       protocol: host.protocol,
       port: host.port,
       moshEnabled: host.moshEnabled,
+      charset: host.charset,
     };
     setSessions(prev => [...prev, newSession]);
     setActiveTabId(newSession.id);
@@ -317,6 +324,7 @@ export const useSessionState = () => {
           status: 'connecting',
           protocol: 'serial',
           serialConfig: serialConfig,
+          charset: host.charset,
         };
       }
 
@@ -330,6 +338,7 @@ export const useSessionState = () => {
         protocol: host.protocol,
         port: host.port,
         moshEnabled: host.moshEnabled,
+        charset: host.charset,
       };
     });
 
@@ -414,11 +423,17 @@ export const useSessionState = () => {
   // direction: 'horizontal' = split top/bottom, 'vertical' = split left/right
   const splitSession = useCallback((
     sessionId: string,
-    direction: SplitDirection
+    direction: SplitDirection,
+    options?: {
+      localShellType?: TerminalSession['shellType'];
+    },
   ) => {
 	    setSessions(prevSessions => {
       const session = prevSessions.find(s => s.id === sessionId);
       if (!session) return prevSessions;
+      const nextShellType = session.protocol === 'local'
+        ? options?.localShellType
+        : session.shellType;
       
       // If session is already in a workspace, split within that workspace
       if (session.workspaceId) {
@@ -434,8 +449,10 @@ export const useSessionState = () => {
           protocol: session.protocol,
           port: session.port,
           moshEnabled: session.moshEnabled,
+          shellType: nextShellType,
+          charset: session.charset,
         };
-        
+
         // Add pane to existing workspace
         const hint: SplitHint = {
           direction,
@@ -464,13 +481,15 @@ export const useSessionState = () => {
         protocol: session.protocol,
         port: session.port,
         moshEnabled: session.moshEnabled,
+        shellType: nextShellType,
+        charset: session.charset,
       };
-      
+
       const hint: SplitHint = {
         direction,
         position: direction === 'horizontal' ? 'bottom' : 'right',
       };
-      
+
       const newWorkspace = createWorkspaceEntity(sessionId, newSession.id, hint);
       setWorkspaces(prev => [...prev, newWorkspace]);
       setActiveTabId(newWorkspace.id);
@@ -551,6 +570,7 @@ export const useSessionState = () => {
       hostname: host.hostname,
       username: host.username,
       status: 'connecting' as const,
+      charset: host.charset,
       // workspaceId will be set after workspace is created
     }));
 
@@ -615,10 +635,15 @@ export const useSessionState = () => {
   }, [setActiveTabId]);
 
   // Copy a session - creates a new session with the same host connection
-  const copySession = useCallback((sessionId: string) => {
+  const copySession = useCallback((sessionId: string, options?: {
+    localShellType?: TerminalSession['shellType'];
+  }) => {
     setSessions(prevSessions => {
       const session = prevSessions.find(s => s.id === sessionId);
       if (!session) return prevSessions;
+      const nextShellType = session.protocol === 'local'
+        ? options?.localShellType
+        : session.shellType;
 
       // Create a new session with the same connection info
       const newSession: TerminalSession = {
@@ -631,6 +656,8 @@ export const useSessionState = () => {
         protocol: session.protocol,
         port: session.port,
         moshEnabled: session.moshEnabled,
+        shellType: nextShellType,
+        charset: session.charset,
         serialConfig: session.serialConfig,
       };
 
@@ -664,9 +691,11 @@ export const useSessionState = () => {
       ...workspaces.map(w => w.id),
       ...logViews.map(lv => lv.id),
     ];
+    const allTabIdSet = new Set(allTabIds);
     // Filter tabOrder to only include existing tabs, then add any new tabs at the end
-    const orderedIds = tabOrder.filter(id => allTabIds.includes(id));
-    const newIds = allTabIds.filter(id => !orderedIds.includes(id));
+    const orderedIds = tabOrder.filter(id => allTabIdSet.has(id));
+    const orderedIdSet = new Set(orderedIds);
+    const newIds = allTabIds.filter(id => !orderedIdSet.has(id));
     return [...orderedIds, ...newIds];
   }, [orphanSessions, workspaces, logViews, tabOrder]);
 
@@ -680,10 +709,12 @@ export const useSessionState = () => {
         ...workspaces.map(w => w.id),
         ...logViews.map(lv => lv.id),
       ];
+      const allTabIdSet = new Set(allTabIds);
       
       // Build current effective order: existing order + new tabs at end
-      const orderedIds = prevTabOrder.filter(id => allTabIds.includes(id));
-      const newIds = allTabIds.filter(id => !orderedIds.includes(id));
+      const orderedIds = prevTabOrder.filter(id => allTabIdSet.has(id));
+      const orderedIdSet = new Set(orderedIds);
+      const newIds = allTabIds.filter(id => !orderedIdSet.has(id));
       const currentOrder = [...orderedIds, ...newIds];
       
       const draggedIndex = currentOrder.indexOf(draggedId);

application/state/useSettingsState.ts

@@ -22,6 +22,8 @@ import {
   STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES,
   STORAGE_KEY_SFTP_USE_COMPRESSED_UPLOAD,
   STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR,
+  STORAGE_KEY_SFTP_TRANSFER_CONCURRENCY,
+  STORAGE_KEY_SFTP_DEFAULT_VIEW_MODE,
   STORAGE_KEY_EDITOR_WORD_WRAP,
   STORAGE_KEY_SESSION_LOGS_ENABLED,
   STORAGE_KEY_SESSION_LOGS_DIR,
@@ -30,6 +32,8 @@ import {
   STORAGE_KEY_CLOSE_TO_TRAY,
   STORAGE_KEY_GLOBAL_HOTKEY_ENABLED,
   STORAGE_KEY_AUTO_UPDATE_ENABLED,
+  STORAGE_KEY_WORKSPACE_FOCUS_STYLE,
+
 } from '../../infrastructure/config/storageKeys';
 import { DEFAULT_UI_LOCALE, resolveSupportedLocale } from '../../infrastructure/config/i18n';
 import { TERMINAL_THEMES } from '../../infrastructure/config/terminalThemes';
@@ -38,7 +42,6 @@ import { DEFAULT_FONT_SIZE } from '../../infrastructure/config/fonts';
 import { DARK_UI_THEMES, LIGHT_UI_THEMES, UiThemeTokens, getUiThemeById } from '../../infrastructure/config/uiThemes';
 import { UI_FONTS, DEFAULT_UI_FONT_ID } from '../../infrastructure/config/uiFonts';
 import { uiFontStore, useUIFontsLoaded } from './uiFontStore';
-import { useAvailableFonts } from './fontStore';
 import { localStorageAdapter } from '../../infrastructure/persistence/localStorageAdapter';
 import { netcattyBridge } from '../../infrastructure/services/netcattyBridge';
 
@@ -65,6 +68,7 @@ const DEFAULT_SFTP_AUTO_SYNC = false;
 const DEFAULT_SFTP_SHOW_HIDDEN_FILES = false;
 const DEFAULT_SFTP_USE_COMPRESSED_UPLOAD = true;
 const DEFAULT_SFTP_AUTO_OPEN_SIDEBAR = false;
+const DEFAULT_SFTP_DEFAULT_VIEW_MODE: 'list' | 'tree' = 'list';
 
 // Editor defaults
 const DEFAULT_EDITOR_WORD_WRAP = false;
@@ -121,8 +125,11 @@ const applyThemeTokens = (
   accentOverride: string,
 ) => {
   const root = window.document.documentElement;
-  root.classList.remove('light', 'dark');
-  root.classList.add(resolvedTheme);
+  // If immersive mode is active (style tag present), it owns the dark/light class — don't override
+  if (!document.getElementById('netcatty-immersive-override')) {
+    root.classList.remove('light', 'dark');
+    root.classList.add(resolvedTheme);
+  }
   root.style.setProperty('--background', tokens.background);
   root.style.setProperty('--foreground', tokens.foreground);
   root.style.setProperty('--card', tokens.card);
@@ -155,7 +162,6 @@ const applyThemeTokens = (
 };
 
 export const useSettingsState = () => {
-  const availableFonts = useAvailableFonts();
   const uiFontsLoaded = useUIFontsLoaded();
   const [theme, setTheme] = useState<'dark' | 'light' | 'system'>(() => {
     const stored = readStoredString(STORAGE_KEY_THEME);
@@ -237,6 +243,14 @@ export const useSettingsState = () => {
     const stored = readStoredString(STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR);
     return stored === 'true' ? true : DEFAULT_SFTP_AUTO_OPEN_SIDEBAR;
   });
+  const [sftpDefaultViewMode, setSftpDefaultViewMode] = useState<'list' | 'tree'>(() => {
+    const stored = readStoredString(STORAGE_KEY_SFTP_DEFAULT_VIEW_MODE);
+    return (stored === 'list' || stored === 'tree') ? stored : DEFAULT_SFTP_DEFAULT_VIEW_MODE;
+  });
+  const [sftpTransferConcurrency, setSftpTransferConcurrencyState] = useState<number>(() => {
+    const stored = localStorageAdapter.readNumber(STORAGE_KEY_SFTP_TRANSFER_CONCURRENCY);
+    return stored != null && stored >= 1 && stored <= 16 ? stored : 4;
+  });
 
   // Editor Settings
   const [editorWordWrap, setEditorWordWrapState] = useState<boolean>(() => {
@@ -287,6 +301,10 @@ export const useSettingsState = () => {
   const localTerminalSettingsVersionRef = useRef(0);
   const broadcastedLocalTerminalSettingsVersionRef = useRef(0);
 
+  // Fix 1: Mount guard — skip redundant IPC broadcasts & localStorage writes on initial mount.
+  // Set to true by the LAST useEffect declaration; all persist effects see false on first render.
+  const persistMountedRef = useRef(false);
+
   const setTerminalSettings = useCallback((nextValue: SetStateAction<TerminalSettings>) => {
     setTerminalSettingsState((prev) => {
       const candidate = typeof nextValue === 'function'
@@ -322,6 +340,29 @@ export const useSettingsState = () => {
     }
   }, []);
 
+  // Immersive mode is always enabled — the toggle has been removed from settings
+  const immersiveMode = true;
+  const setImmersiveMode = useCallback((_enabled: boolean) => {
+    // no-op: immersive mode is always on
+  }, []);
+
+  const setSftpTransferConcurrency = useCallback((value: number) => {
+    const clamped = Math.max(1, Math.min(16, Math.round(value)));
+    setSftpTransferConcurrencyState(clamped);
+    localStorageAdapter.writeString(STORAGE_KEY_SFTP_TRANSFER_CONCURRENCY, String(clamped));
+    notifySettingsChanged(STORAGE_KEY_SFTP_TRANSFER_CONCURRENCY, clamped);
+  }, [notifySettingsChanged]);
+
+  const [workspaceFocusStyle, setWorkspaceFocusStyleState] = useState<'dim' | 'border'>(() => {
+    const stored = localStorageAdapter.readString(STORAGE_KEY_WORKSPACE_FOCUS_STYLE);
+    return stored === 'border' ? 'border' : 'dim';
+  });
+  const setWorkspaceFocusStyle = useCallback((style: 'dim' | 'border') => {
+    setWorkspaceFocusStyleState(style);
+    localStorageAdapter.writeString(STORAGE_KEY_WORKSPACE_FOCUS_STYLE, style);
+    notifySettingsChanged(STORAGE_KEY_WORKSPACE_FOCUS_STYLE, style);
+  }, [notifySettingsChanged]);
+
   const syncAppearanceFromStorage = useCallback(() => {
     const storedTheme = readStoredString(STORAGE_KEY_THEME);
     const nextTheme = storedTheme && isValidTheme(storedTheme) ? storedTheme : theme;
@@ -334,6 +375,17 @@ export const useSettingsState = () => {
     const storedAccent = readStoredString(STORAGE_KEY_COLOR);
     const nextAccent = storedAccent && isValidHslToken(storedAccent) ? storedAccent.trim() : customAccent;
 
+    // Fix 2: Skip expensive DOM operations if nothing actually changed
+    if (
+      nextTheme === theme &&
+      nextLightId === lightUiThemeId &&
+      nextDarkId === darkUiThemeId &&
+      nextAccentMode === accentMode &&
+      nextAccent === customAccent
+    ) {
+      return;
+    }
+
     setTheme(nextTheme);
     setLightUiThemeId(nextLightId);
     setDarkUiThemeId(nextDarkId);
@@ -401,10 +453,16 @@ export const useSettingsState = () => {
     if (storedCompress === 'true' || storedCompress === 'false') setSftpUseCompressedUpload(storedCompress === 'true');
     const storedAutoOpenSidebar = readStoredString(STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR);
     if (storedAutoOpenSidebar === 'true' || storedAutoOpenSidebar === 'false') setSftpAutoOpenSidebar(storedAutoOpenSidebar === 'true');
+    const storedDefaultViewMode = readStoredString(STORAGE_KEY_SFTP_DEFAULT_VIEW_MODE);
+    if (storedDefaultViewMode === 'list' || storedDefaultViewMode === 'tree') setSftpDefaultViewMode(storedDefaultViewMode);
+
+    // Workspace focus style
+    const storedFocusStyle = readStoredString(STORAGE_KEY_WORKSPACE_FOCUS_STYLE);
+    if (storedFocusStyle === 'dim' || storedFocusStyle === 'border') setWorkspaceFocusStyleState(storedFocusStyle);
 
     // Custom terminal themes
     customThemeStore.loadFromStorage();
-  }, [syncAppearanceFromStorage, syncCustomCssFromStorage, setTerminalSettings]);
+  }, [syncAppearanceFromStorage, syncCustomCssFromStorage, setTerminalSettings, notifySettingsChanged]);
 
   useLayoutEffect(() => {
     const tokens = getUiThemeById(resolvedTheme, resolvedTheme === 'dark' ? darkUiThemeId : lightUiThemeId).tokens;
@@ -414,12 +472,11 @@ export const useSettingsState = () => {
     localStorageAdapter.writeString(STORAGE_KEY_UI_THEME_DARK, darkUiThemeId);
     localStorageAdapter.writeString(STORAGE_KEY_ACCENT_MODE, accentMode);
     localStorageAdapter.writeString(STORAGE_KEY_COLOR, customAccent);
-    // Notify other windows
+    // Fix 1: Skip IPC broadcast on initial mount (values already match localStorage)
+    if (!persistMountedRef.current) return;
+    // Fix 3: Send a single IPC instead of 5 — the receiver calls syncAppearanceFromStorage()
+    // which re-reads ALL appearance values from localStorage.
     notifySettingsChanged(STORAGE_KEY_THEME, theme);
-    notifySettingsChanged(STORAGE_KEY_UI_THEME_LIGHT, lightUiThemeId);
-    notifySettingsChanged(STORAGE_KEY_UI_THEME_DARK, darkUiThemeId);
-    notifySettingsChanged(STORAGE_KEY_ACCENT_MODE, accentMode);
-    notifySettingsChanged(STORAGE_KEY_COLOR, customAccent);
   }, [theme, resolvedTheme, lightUiThemeId, darkUiThemeId, accentMode, customAccent, notifySettingsChanged]);
 
   // Listen for OS color scheme changes to keep systemPreference in sync
@@ -437,7 +494,10 @@ export const useSettingsState = () => {
     localStorageAdapter.writeString(STORAGE_KEY_UI_LANGUAGE, uiLanguage);
     document.documentElement.lang = uiLanguage;
     netcattyBridge.get()?.setLanguage?.(uiLanguage);
-    notifySettingsChanged(STORAGE_KEY_UI_LANGUAGE, uiLanguage);
+    // Fix 1: Skip IPC broadcast on initial mount
+    if (persistMountedRef.current) {
+      notifySettingsChanged(STORAGE_KEY_UI_LANGUAGE, uiLanguage);
+    }
   }, [uiLanguage, notifySettingsChanged]);
 
   // Apply and persist UI font family
@@ -446,7 +506,10 @@ export const useSettingsState = () => {
     const font = uiFontStore.getFontById(uiFontFamilyId);
     document.documentElement.style.setProperty('--font-sans', font.family);
     localStorageAdapter.writeString(STORAGE_KEY_UI_FONT_FAMILY, uiFontFamilyId);
-    notifySettingsChanged(STORAGE_KEY_UI_FONT_FAMILY, uiFontFamilyId);
+    // Fix 1: Skip IPC broadcast on initial mount
+    if (persistMountedRef.current) {
+      notifySettingsChanged(STORAGE_KEY_UI_FONT_FAMILY, uiFontFamilyId);
+    }
   }, [uiFontFamilyId, uiFontsLoaded, notifySettingsChanged]);
 
   // Listen for settings changes from other windows via IPC
@@ -540,6 +603,17 @@ export const useSettingsState = () => {
       if (key === STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR && typeof value === 'boolean') {
         setSftpAutoOpenSidebar((prev) => (prev === value ? prev : value));
       }
+      if (key === STORAGE_KEY_SFTP_DEFAULT_VIEW_MODE && typeof value === 'string') {
+        if (value === 'list' || value === 'tree') {
+          setSftpDefaultViewMode((prev) => (prev === value ? prev : value));
+        }
+      }
+      if (key === STORAGE_KEY_WORKSPACE_FOCUS_STYLE && (value === 'dim' || value === 'border')) {
+        setWorkspaceFocusStyleState((prev) => (prev === value ? prev : value));
+      }
+      if (key === STORAGE_KEY_SFTP_TRANSFER_CONCURRENCY && typeof value === 'number') {
+        setSftpTransferConcurrencyState((prev) => (prev === value ? prev : value));
+      }
     });
     return () => {
       try {
@@ -567,53 +641,76 @@ export const useSettingsState = () => {
     };
   }, []);
 
+  // Fix 4: Keep a ref snapshot of current settings so the storage event handler
+  // can compare without capturing 25+ state variables in its closure / dep array.
+  // This avoids constant listener detach/reattach on every state change.
+  const settingsSnapshotRef = useRef({
+    theme, lightUiThemeId, darkUiThemeId, accentMode, customAccent,
+    customCSS, uiFontFamilyId, hotkeyScheme, uiLanguage,
+    terminalThemeId, terminalFontFamilyId, terminalFontSize,
+    sftpDoubleClickBehavior, sftpAutoSync, sftpShowHiddenFiles,
+    sftpUseCompressedUpload, sftpAutoOpenSidebar, sftpDefaultViewMode,
+    editorWordWrap, sessionLogsEnabled, sessionLogsDir, sessionLogsFormat,
+    globalHotkeyEnabled, autoUpdateEnabled, immersiveMode,
+  });
+  settingsSnapshotRef.current = {
+    theme, lightUiThemeId, darkUiThemeId, accentMode, customAccent,
+    customCSS, uiFontFamilyId, hotkeyScheme, uiLanguage,
+    terminalThemeId, terminalFontFamilyId, terminalFontSize,
+    sftpDoubleClickBehavior, sftpAutoSync, sftpShowHiddenFiles,
+    sftpUseCompressedUpload, sftpAutoOpenSidebar, sftpDefaultViewMode,
+    editorWordWrap, sessionLogsEnabled, sessionLogsDir, sessionLogsFormat,
+    globalHotkeyEnabled, autoUpdateEnabled, immersiveMode,
+  };
+
   // Listen for storage changes from other windows (cross-window sync)
   useEffect(() => {
     const handleStorageChange = (e: StorageEvent) => {
+      const s = settingsSnapshotRef.current;
       if (e.key === STORAGE_KEY_THEME && e.newValue) {
-        if (isValidTheme(e.newValue) && e.newValue !== theme) {
+        if (isValidTheme(e.newValue) && e.newValue !== s.theme) {
           setTheme(e.newValue);
         }
       }
       if (e.key === STORAGE_KEY_UI_THEME_LIGHT && e.newValue) {
-        if (isValidUiThemeId('light', e.newValue) && e.newValue !== lightUiThemeId) {
+        if (isValidUiThemeId('light', e.newValue) && e.newValue !== s.lightUiThemeId) {
           setLightUiThemeId(e.newValue);
         }
       }
       if (e.key === STORAGE_KEY_UI_THEME_DARK && e.newValue) {
-        if (isValidUiThemeId('dark', e.newValue) && e.newValue !== darkUiThemeId) {
+        if (isValidUiThemeId('dark', e.newValue) && e.newValue !== s.darkUiThemeId) {
           setDarkUiThemeId(e.newValue);
         }
       }
       if (e.key === STORAGE_KEY_ACCENT_MODE && e.newValue) {
-        if ((e.newValue === 'theme' || e.newValue === 'custom') && e.newValue !== accentMode) {
+        if ((e.newValue === 'theme' || e.newValue === 'custom') && e.newValue !== s.accentMode) {
           setAccentMode(e.newValue);
         }
       }
       if (e.key === STORAGE_KEY_COLOR && e.newValue) {
-        if (isValidHslToken(e.newValue) && e.newValue !== customAccent) {
+        if (isValidHslToken(e.newValue) && e.newValue !== s.customAccent) {
           setCustomAccent(e.newValue.trim());
         }
       }
       if (e.key === STORAGE_KEY_CUSTOM_CSS && e.newValue !== null) {
-        if (e.newValue !== customCSS) {
+        if (e.newValue !== s.customCSS) {
           setCustomCSS(e.newValue);
         }
       }
       if (e.key === STORAGE_KEY_UI_FONT_FAMILY && e.newValue) {
-        if (isValidUiFontId(e.newValue) && e.newValue !== uiFontFamilyId) {
+        if (isValidUiFontId(e.newValue) && e.newValue !== s.uiFontFamilyId) {
           setUiFontFamilyId(e.newValue);
         }
       }
       if (e.key === STORAGE_KEY_HOTKEY_SCHEME && e.newValue) {
         const newScheme = e.newValue as HotkeyScheme;
-        if (newScheme !== hotkeyScheme) {
+        if (newScheme !== s.hotkeyScheme) {
           setHotkeyScheme(newScheme);
         }
       }
       if (e.key === STORAGE_KEY_UI_LANGUAGE && e.newValue) {
         const next = resolveSupportedLocale(e.newValue);
-        if (next !== uiLanguage) {
+        if (next !== s.uiLanguage) {
           setUiLanguage(next as UILanguage);
         }
       }
@@ -636,64 +733,64 @@ export const useSettingsState = () => {
       }
       // Sync terminal theme from other windows
       if (e.key === STORAGE_KEY_TERM_THEME && e.newValue) {
-        if (e.newValue !== terminalThemeId) {
+        if (e.newValue !== s.terminalThemeId) {
           setTerminalThemeId(e.newValue);
         }
       }
       // Sync terminal font family from other windows
       if (e.key === STORAGE_KEY_TERM_FONT_FAMILY && e.newValue) {
-        if (e.newValue !== terminalFontFamilyId) {
+        if (e.newValue !== s.terminalFontFamilyId) {
           setTerminalFontFamilyId(e.newValue);
         }
       }
       // Sync terminal font size from other windows
       if (e.key === STORAGE_KEY_TERM_FONT_SIZE && e.newValue) {
         const newSize = parseInt(e.newValue, 10);
-        if (!isNaN(newSize) && newSize !== terminalFontSize) {
+        if (!isNaN(newSize) && newSize !== s.terminalFontSize) {
           setTerminalFontSize(newSize);
         }
       }
       // Sync SFTP double-click behavior from other windows
       if (e.key === STORAGE_KEY_SFTP_DOUBLE_CLICK_BEHAVIOR && e.newValue) {
-        if ((e.newValue === 'open' || e.newValue === 'transfer') && e.newValue !== sftpDoubleClickBehavior) {
+        if ((e.newValue === 'open' || e.newValue === 'transfer') && e.newValue !== s.sftpDoubleClickBehavior) {
           setSftpDoubleClickBehavior(e.newValue);
         }
       }
       // Sync SFTP auto-sync setting from other windows
       if (e.key === STORAGE_KEY_SFTP_AUTO_SYNC && e.newValue !== null) {
         const newValue = e.newValue === 'true';
-        if (newValue !== sftpAutoSync) {
+        if (newValue !== s.sftpAutoSync) {
           setSftpAutoSync(newValue);
         }
       }
       // Sync SFTP show hidden files setting from other windows
       if (e.key === STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES && e.newValue !== null) {
         const newValue = e.newValue === 'true';
-        if (newValue !== sftpShowHiddenFiles) {
+        if (newValue !== s.sftpShowHiddenFiles) {
           setSftpShowHiddenFiles(newValue);
         }
       }
       if (e.key === STORAGE_KEY_EDITOR_WORD_WRAP && e.newValue !== null) {
         const newValue = e.newValue === 'true';
-        if (newValue !== editorWordWrap) {
+        if (newValue !== s.editorWordWrap) {
           setEditorWordWrapState(newValue);
         }
       }
       if (e.key === STORAGE_KEY_SESSION_LOGS_ENABLED && e.newValue !== null) {
         const newValue = e.newValue === 'true';
-        if (newValue !== sessionLogsEnabled) {
+        if (newValue !== s.sessionLogsEnabled) {
           setSessionLogsEnabled(newValue);
         }
       }
       if (e.key === STORAGE_KEY_SESSION_LOGS_DIR && e.newValue !== null) {
-        if (e.newValue !== sessionLogsDir) {
+        if (e.newValue !== s.sessionLogsDir) {
           setSessionLogsDir(e.newValue);
         }
       }
       if (e.key === STORAGE_KEY_SESSION_LOGS_FORMAT && e.newValue) {
         if (
           (e.newValue === 'txt' || e.newValue === 'raw' || e.newValue === 'html') &&
-          e.newValue !== sessionLogsFormat
+          e.newValue !== s.sessionLogsFormat
         ) {
           setSessionLogsFormat(e.newValue);
         }
@@ -701,54 +798,77 @@ export const useSettingsState = () => {
       // Sync SFTP compressed upload setting from other windows
       if (e.key === STORAGE_KEY_SFTP_USE_COMPRESSED_UPLOAD && e.newValue !== null) {
         const newValue = e.newValue === 'true' || e.newValue === 'enabled';
-        if (newValue !== sftpUseCompressedUpload) {
+        if (newValue !== s.sftpUseCompressedUpload) {
           setSftpUseCompressedUpload(newValue);
         }
       }
       // Sync SFTP auto-open sidebar setting from other windows
       if (e.key === STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR && e.newValue !== null) {
         const newValue = e.newValue === 'true';
-        if (newValue !== sftpAutoOpenSidebar) {
+        if (newValue !== s.sftpAutoOpenSidebar) {
           setSftpAutoOpenSidebar(newValue);
         }
       }
+      // Sync SFTP default view mode from other windows
+      if (e.key === STORAGE_KEY_SFTP_DEFAULT_VIEW_MODE && e.newValue) {
+        if ((e.newValue === 'list' || e.newValue === 'tree') && e.newValue !== s.sftpDefaultViewMode) {
+          setSftpDefaultViewMode(e.newValue);
+        }
+      }
       // Sync global hotkey enabled setting from other windows
       if (e.key === STORAGE_KEY_GLOBAL_HOTKEY_ENABLED && e.newValue !== null) {
         const newValue = e.newValue === 'true';
-        if (newValue !== globalHotkeyEnabled) {
+        if (newValue !== s.globalHotkeyEnabled) {
           setGlobalHotkeyEnabled(newValue);
         }
       }
       // Sync auto-update enabled setting from other windows
       if (e.key === STORAGE_KEY_AUTO_UPDATE_ENABLED && e.newValue !== null) {
         const newValue = e.newValue === 'true';
-        if (newValue !== autoUpdateEnabled) {
+        if (newValue !== s.autoUpdateEnabled) {
           setAutoUpdateEnabled(newValue);
         }
       }
+      // Sync workspace focus style from other windows
+      if (e.key === STORAGE_KEY_WORKSPACE_FOCUS_STYLE && e.newValue !== null) {
+        if (e.newValue === 'dim' || e.newValue === 'border') {
+          setWorkspaceFocusStyleState(e.newValue);
+        }
+      }
+      // Sync transfer concurrency from other windows
+      if (e.key === STORAGE_KEY_SFTP_TRANSFER_CONCURRENCY && e.newValue !== null) {
+        const num = Number(e.newValue);
+        if (num >= 1 && num <= 16) {
+          setSftpTransferConcurrencyState(num);
+        }
+      }
     };
 
     window.addEventListener('storage', handleStorageChange);
     return () => window.removeEventListener('storage', handleStorageChange);
-  }, [theme, lightUiThemeId, darkUiThemeId, accentMode, customAccent, customCSS, uiFontFamilyId, hotkeyScheme, uiLanguage, terminalThemeId, terminalFontFamilyId, terminalFontSize, sftpDoubleClickBehavior, sftpAutoSync, sftpShowHiddenFiles, sftpUseCompressedUpload, sftpAutoOpenSidebar, editorWordWrap, sessionLogsEnabled, sessionLogsDir, sessionLogsFormat, globalHotkeyEnabled, autoUpdateEnabled, mergeIncomingTerminalSettings]);
+  }, [mergeIncomingTerminalSettings]); // Fix 4: stable deps only — state comparisons use settingsSnapshotRef
 
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_TERM_THEME, terminalThemeId);
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_TERM_THEME, terminalThemeId);
   }, [terminalThemeId, notifySettingsChanged]);
 
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_TERM_FONT_FAMILY, terminalFontFamilyId);
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_TERM_FONT_FAMILY, terminalFontFamilyId);
   }, [terminalFontFamilyId, notifySettingsChanged]);
 
   useEffect(() => {
     localStorageAdapter.writeNumber(STORAGE_KEY_TERM_FONT_SIZE, terminalFontSize);
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_TERM_FONT_SIZE, terminalFontSize);
   }, [terminalFontSize, notifySettingsChanged]);
 
   useEffect(() => {
     localStorageAdapter.write(STORAGE_KEY_TERM_SETTINGS, terminalSettings);
+    if (!persistMountedRef.current) return;
     const currentSignature = serializeTerminalSettings(terminalSettings);
     const hasPendingUnbroadcastLocalChanges =
       localTerminalSettingsVersionRef.current !== broadcastedLocalTerminalSettingsVersionRef.current;
@@ -763,11 +883,13 @@ export const useSettingsState = () => {
 
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_HOTKEY_SCHEME, hotkeyScheme);
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_HOTKEY_SCHEME, hotkeyScheme);
   }, [hotkeyScheme, notifySettingsChanged]);
 
   useEffect(() => {
     localStorageAdapter.write(STORAGE_KEY_CUSTOM_KEY_BINDINGS, customKeyBindings);
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_CUSTOM_KEY_BINDINGS, customKeyBindings);
   }, [customKeyBindings, notifySettingsChanged]);
 
@@ -778,10 +900,7 @@ export const useSettingsState = () => {
 
   // Apply and persist custom CSS
   useEffect(() => {
-    localStorageAdapter.writeString(STORAGE_KEY_CUSTOM_CSS, customCSS);
-    notifySettingsChanged(STORAGE_KEY_CUSTOM_CSS, customCSS);
-
-    // Apply custom CSS to document
+    // Always apply CSS to document (needed on mount)
     let styleEl = document.getElementById('netcatty-custom-css') as HTMLStyleElement | null;
     if (!styleEl) {
       styleEl = document.createElement('style');
@@ -789,59 +908,76 @@ export const useSettingsState = () => {
       document.head.appendChild(styleEl);
     }
     styleEl.textContent = customCSS;
+    localStorageAdapter.writeString(STORAGE_KEY_CUSTOM_CSS, customCSS);
+    // Skip IPC on initial mount
+    if (!persistMountedRef.current) return;
+    notifySettingsChanged(STORAGE_KEY_CUSTOM_CSS, customCSS);
   }, [customCSS, notifySettingsChanged]);
 
   // Persist SFTP double-click behavior
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_SFTP_DOUBLE_CLICK_BEHAVIOR, sftpDoubleClickBehavior);
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_SFTP_DOUBLE_CLICK_BEHAVIOR, sftpDoubleClickBehavior);
   }, [sftpDoubleClickBehavior, notifySettingsChanged]);
 
   // Persist SFTP auto-sync setting
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_SFTP_AUTO_SYNC, sftpAutoSync ? 'true' : 'false');
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_SFTP_AUTO_SYNC, sftpAutoSync);
   }, [sftpAutoSync, notifySettingsChanged]);
 
   // Persist SFTP show hidden files setting
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES, sftpShowHiddenFiles ? 'true' : 'false');
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES, sftpShowHiddenFiles);
   }, [sftpShowHiddenFiles, notifySettingsChanged]);
 
   // Persist SFTP compressed upload setting
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_SFTP_USE_COMPRESSED_UPLOAD, sftpUseCompressedUpload ? 'true' : 'false');
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_SFTP_USE_COMPRESSED_UPLOAD, sftpUseCompressedUpload);
   }, [sftpUseCompressedUpload, notifySettingsChanged]);
 
   // Persist SFTP auto-open sidebar setting
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR, sftpAutoOpenSidebar ? 'true' : 'false');
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR, sftpAutoOpenSidebar);
   }, [sftpAutoOpenSidebar, notifySettingsChanged]);
 
+  // Persist SFTP default view mode
+  useEffect(() => {
+    localStorageAdapter.writeString(STORAGE_KEY_SFTP_DEFAULT_VIEW_MODE, sftpDefaultViewMode);
+    if (!persistMountedRef.current) return;
+    notifySettingsChanged(STORAGE_KEY_SFTP_DEFAULT_VIEW_MODE, sftpDefaultViewMode);
+  }, [sftpDefaultViewMode, notifySettingsChanged]);
+
   // Persist Session Logs settings
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_SESSION_LOGS_ENABLED, sessionLogsEnabled ? 'true' : 'false');
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_SESSION_LOGS_ENABLED, sessionLogsEnabled);
   }, [sessionLogsEnabled, notifySettingsChanged]);
 
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_SESSION_LOGS_DIR, sessionLogsDir);
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_SESSION_LOGS_DIR, sessionLogsDir);
   }, [sessionLogsDir, notifySettingsChanged]);
 
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_SESSION_LOGS_FORMAT, sessionLogsFormat);
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_SESSION_LOGS_FORMAT, sessionLogsFormat);
   }, [sessionLogsFormat, notifySettingsChanged]);
 
   // Persist and sync toggle window hotkey setting
   useEffect(() => {
-    localStorageAdapter.writeString(STORAGE_KEY_TOGGLE_WINDOW_HOTKEY, toggleWindowHotkey);
-    notifySettingsChanged(STORAGE_KEY_TOGGLE_WINDOW_HOTKEY, toggleWindowHotkey);
-    // Register/unregister the global hotkey in main process
+    // Register/unregister the global hotkey in main process (needed on mount)
     const bridge = netcattyBridge.get();
     if (bridge?.registerGlobalHotkey) {
       if (toggleWindowHotkey && globalHotkeyEnabled) {
@@ -865,25 +1001,32 @@ export const useSettingsState = () => {
         });
       }
     }
+    localStorageAdapter.writeString(STORAGE_KEY_TOGGLE_WINDOW_HOTKEY, toggleWindowHotkey);
+    // Skip IPC on initial mount
+    if (!persistMountedRef.current) return;
+    notifySettingsChanged(STORAGE_KEY_TOGGLE_WINDOW_HOTKEY, toggleWindowHotkey);
   }, [toggleWindowHotkey, globalHotkeyEnabled, notifySettingsChanged]);
 
   // Persist global hotkey enabled setting
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_GLOBAL_HOTKEY_ENABLED, globalHotkeyEnabled ? 'true' : 'false');
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_GLOBAL_HOTKEY_ENABLED, globalHotkeyEnabled);
   }, [globalHotkeyEnabled, notifySettingsChanged]);
 
   // Persist and sync close to tray setting
   useEffect(() => {
-    localStorageAdapter.writeString(STORAGE_KEY_CLOSE_TO_TRAY, closeToTray ? 'true' : 'false');
-    notifySettingsChanged(STORAGE_KEY_CLOSE_TO_TRAY, closeToTray);
-    // Update main process tray behavior
+    // Update main process tray behavior (needed on mount)
     const bridge = netcattyBridge.get();
     if (bridge?.setCloseToTray) {
       bridge.setCloseToTray(closeToTray).catch((err) => {
         console.warn('[SystemTray] Failed to set close-to-tray:', err);
       });
     }
+    localStorageAdapter.writeString(STORAGE_KEY_CLOSE_TO_TRAY, closeToTray ? 'true' : 'false');
+    // Skip IPC on initial mount
+    if (!persistMountedRef.current) return;
+    notifySettingsChanged(STORAGE_KEY_CLOSE_TO_TRAY, closeToTray);
   }, [closeToTray, notifySettingsChanged]);
 
   // Hydrate auto-update state from the main-process preference file on mount.
@@ -904,16 +1047,11 @@ export const useSettingsState = () => {
   }, []);
 
   // Persist auto-update enabled setting.
-  // Skip IPC on initial mount to avoid overwriting the main-process preference
-  // file when localStorage has been cleared (where the default is true).
-  const autoUpdateMountedRef = useRef(false);
+  // Initial mount still writes localStorage, but skips cross-window/main-process IPC.
   useEffect(() => {
     localStorageAdapter.writeString(STORAGE_KEY_AUTO_UPDATE_ENABLED, autoUpdateEnabled ? 'true' : 'false');
+    if (!persistMountedRef.current) return;
     notifySettingsChanged(STORAGE_KEY_AUTO_UPDATE_ENABLED, autoUpdateEnabled);
-    if (!autoUpdateMountedRef.current) {
-      autoUpdateMountedRef.current = true;
-      return; // Skip IPC on initial mount
-    }
     // Notify main process on user-initiated changes
     const bridge = netcattyBridge.get();
     bridge?.setAutoUpdate?.(autoUpdateEnabled).catch((err: unknown) => {
@@ -921,6 +1059,13 @@ export const useSettingsState = () => {
     });
   }, [autoUpdateEnabled, notifySettingsChanged]);
 
+  // Fix 1: Mark all persist effects as mounted.
+  // This MUST be declared AFTER all persist useEffects so that React runs it last
+  // during the initial mount cycle (effects fire in declaration order).
+  useEffect(() => {
+    persistMountedRef.current = true;
+  }, []);
+
   // Get merged key bindings (defaults + custom overrides)
   const keyBindings = useMemo((): KeyBinding[] => {
     return DEFAULT_KEY_BINDINGS.map(binding => {
@@ -983,11 +1128,6 @@ export const useSettingsState = () => {
     [terminalThemeId, customThemes]
   );
 
-  const currentTerminalFont = useMemo(
-    () => availableFonts.find(f => f.id === terminalFontFamilyId) || availableFonts[0],
-    [terminalFontFamilyId, availableFonts]
-  );
-
   const updateTerminalSetting = useCallback(<K extends keyof TerminalSettings>(
     key: K,
     value: TerminalSettings[K]
@@ -995,6 +1135,12 @@ export const useSettingsState = () => {
     setTerminalSettings(prev => ({ ...prev, [key]: value }));
   }, [setTerminalSettings]);
 
+  /** Re-apply the current UI theme tokens (used to restore after immersive mode override). */
+  const reapplyCurrentTheme = useCallback(() => {
+    const tokens = getUiThemeById(resolvedTheme, resolvedTheme === 'dark' ? darkUiThemeId : lightUiThemeId).tokens;
+    applyThemeTokens(theme, resolvedTheme, tokens, accentMode, customAccent);
+  }, [theme, resolvedTheme, lightUiThemeId, darkUiThemeId, accentMode, customAccent]);
+
   return {
     theme,
     setTheme,
@@ -1018,7 +1164,6 @@ export const useSettingsState = () => {
     currentTerminalTheme,
     terminalFontFamilyId,
     setTerminalFontFamilyId,
-    currentTerminalFont,
     terminalFontSize,
     setTerminalFontSize,
     terminalSettings,
@@ -1045,6 +1190,10 @@ export const useSettingsState = () => {
     setSftpUseCompressedUpload,
     sftpAutoOpenSidebar,
     setSftpAutoOpenSidebar,
+    sftpDefaultViewMode,
+    setSftpDefaultViewMode,
+    sftpTransferConcurrency,
+    setSftpTransferConcurrency,
     // Editor Settings
     editorWordWrap,
     setEditorWordWrap: useCallback((enabled: boolean) => {
@@ -1052,7 +1201,6 @@ export const useSettingsState = () => {
       localStorageAdapter.writeString(STORAGE_KEY_EDITOR_WORD_WRAP, String(enabled));
       notifySettingsChanged(STORAGE_KEY_EDITOR_WORD_WRAP, enabled);
     }, [notifySettingsChanged]),
-    availableFonts,
     // Session Logs
     sessionLogsEnabled,
     setSessionLogsEnabled,
@@ -1071,6 +1219,11 @@ export const useSettingsState = () => {
     globalHotkeyEnabled,
     setGlobalHotkeyEnabled,
     rehydrateAllFromStorage,
+    reapplyCurrentTheme,
+    immersiveMode,
+    setImmersiveMode,
+    workspaceFocusStyle,
+    setWorkspaceFocusStyle,
     // Opaque version that changes when any synced setting changes, used by useAutoSync.
     // eslint-disable-next-line react-hooks/exhaustive-deps
     settingsVersion: useMemo(() => Math.random(), [
@@ -1078,8 +1231,8 @@ export const useSettingsState = () => {
       uiFontFamilyId, uiLanguage, customCSS,
       terminalThemeId, terminalFontFamilyId, terminalFontSize, terminalSettings,
       customKeyBindings, editorWordWrap,
-      sftpDoubleClickBehavior, sftpAutoSync, sftpShowHiddenFiles, sftpUseCompressedUpload, sftpAutoOpenSidebar,
-      customThemes,
+      sftpDoubleClickBehavior, sftpAutoSync, sftpShowHiddenFiles, sftpUseCompressedUpload, sftpAutoOpenSidebar, sftpDefaultViewMode,
+      customThemes, immersiveMode, workspaceFocusStyle,
     ]),
   };
 };

application/state/useSftpBackend.ts

@@ -197,6 +197,12 @@ export const useSftpBackend = () => {
     return bridge.showSaveDialog(defaultPath, filters);
   }, []);
 
+  const selectDirectory = async (title?: string, defaultPath?: string) => {
+    const bridge = netcattyBridge.get();
+    if (!bridge?.selectDirectory) return null;
+    return bridge.selectDirectory(title, defaultPath);
+  };
+
   const downloadSftpToTempAndOpen = useCallback(async (
     sftpId: string,
     remotePath: string,
@@ -210,9 +216,7 @@ export const useSftpBackend = () => {
     }
     
     // Download the file to temp
-    console.log("[SFTPBackend] Downloading file to temp", { sftpId, remotePath, fileName });
     const tempPath = await bridge.downloadSftpToTemp(sftpId, remotePath, fileName, options?.encoding);
-    console.log("[SFTPBackend] File downloaded to temp", { tempPath });
     
     // Register temp file for cleanup when SFTP session closes (regardless of auto-sync setting)
     if (bridge.registerTempFile) {
@@ -224,25 +228,18 @@ export const useSftpBackend = () => {
     }
     
     // Open with the selected application
-    console.log("[SFTPBackend] Opening with application", { tempPath, appPath });
     await bridge.openWithApplication(tempPath, appPath);
-    console.log("[SFTPBackend] Application launched");
     
     // Start file watching if enabled
     let watchId: string | undefined;
-    console.log("[SFTPBackend] Auto-sync enabled check", { enableWatch: options?.enableWatch, hasStartFileWatch: !!bridge.startFileWatch });
     if (options?.enableWatch && bridge.startFileWatch) {
       try {
-        console.log("[SFTPBackend] Starting file watch", { tempPath, remotePath, sftpId });
         const result = await bridge.startFileWatch(tempPath, remotePath, sftpId, options?.encoding);
         watchId = result.watchId;
-        console.log("[SFTPBackend] File watch started successfully", { watchId, tempPath, remotePath });
       } catch (err) {
         console.warn("[SFTPBackend] Failed to start file watch:", err);
         // Don't fail the operation if watching fails
       }
-    } else {
-      console.log("[SFTPBackend] File watching not enabled or not available");
     }
     
     return { localTempPath: tempPath, watchId };
@@ -278,6 +275,7 @@ export const useSftpBackend = () => {
     onTransferProgress,
     selectApplication,
     showSaveDialog,
+    selectDirectory,
     downloadSftpToTempAndOpen,
   };
 };

application/state/useSftpFileAssociations.ts

@@ -3,10 +3,10 @@
  * Uses a shared state pattern to sync across components
  */
 import { useCallback, useEffect, useSyncExternalStore } from 'react';
-import { STORAGE_KEY_SFTP_FILE_ASSOCIATIONS } from '../../infrastructure/config/storageKeys';
+import { STORAGE_KEY_SFTP_FILE_ASSOCIATIONS, STORAGE_KEY_SFTP_DEFAULT_OPENER } from '../../infrastructure/config/storageKeys';
 import { localStorageAdapter } from '../../infrastructure/persistence/localStorageAdapter';
 import type { FileAssociation, FileOpenerType, SystemAppInfo } from '../../lib/sftpFileUtils';
-import { getFileExtension } from '../../lib/sftpFileUtils';
+import { getFileExtension, isKnownBinaryFile } from '../../lib/sftpFileUtils';
 
 export interface FileAssociationEntry {
   openerType: FileOpenerType;
@@ -17,15 +17,16 @@ export interface FileAssociationsMap {
   [extension: string]: FileAssociationEntry;
 }
 
-// Shared state and subscribers for cross-component synchronization
+// ---------------------------------------------------------------------------
+// Per-extension associations store
+// ---------------------------------------------------------------------------
+
 const subscribers = new Set<() => void>();
 
-// Use a wrapper object so we can update the reference for useSyncExternalStore
 let snapshotRef: { associations: FileAssociationsMap } = { associations: {} };
 
 function loadFromStorage(): FileAssociationsMap {
   const stored = localStorageAdapter.read<FileAssociationsMap>(STORAGE_KEY_SFTP_FILE_ASSOCIATIONS);
-  console.log('[SftpFileAssociations] Loading from storage:', stored);
   if (stored) {
     const migrated: FileAssociationsMap = {};
     for (const [ext, value] of Object.entries(stored)) {
@@ -35,29 +36,20 @@ function loadFromStorage(): FileAssociationsMap {
         migrated[ext] = value as FileAssociationEntry;
       }
     }
-    console.log('[SftpFileAssociations] Migrated associations:', migrated);
     return migrated;
   }
   return {};
 }
 
-// Initialize from storage
 snapshotRef = { associations: loadFromStorage() };
 
 function saveToStorage(associations: FileAssociationsMap) {
-  console.log('[SftpFileAssociations] saveToStorage called with:', associations);
   localStorageAdapter.write(STORAGE_KEY_SFTP_FILE_ASSOCIATIONS, associations);
-  // Verify it was saved
-  const verify = localStorageAdapter.read(STORAGE_KEY_SFTP_FILE_ASSOCIATIONS);
-  console.log('[SftpFileAssociations] Verification read from storage:', verify);
 }
 
 function updateAssociations(newAssociations: FileAssociationsMap) {
-  console.log('[SftpFileAssociations] Updating associations:', newAssociations);
-  // Create new reference so useSyncExternalStore detects change
   snapshotRef = { associations: newAssociations };
   saveToStorage(newAssociations);
-  console.log('[SftpFileAssociations] Notifying', subscribers.size, 'subscribers');
   subscribers.forEach(callback => callback());
 }
 
@@ -70,15 +62,54 @@ function getSnapshot() {
   return snapshotRef;
 }
 
+// ---------------------------------------------------------------------------
+// Default opener store (separate from per-extension associations)
+// ---------------------------------------------------------------------------
+
+const defaultOpenerSubscribers = new Set<() => void>();
+
+let defaultOpenerSnapshot: { entry: FileAssociationEntry | null } = {
+  entry: localStorageAdapter.read<FileAssociationEntry>(STORAGE_KEY_SFTP_DEFAULT_OPENER) ?? null,
+};
+
+function subscribeDefaultOpener(callback: () => void) {
+  defaultOpenerSubscribers.add(callback);
+  return () => defaultOpenerSubscribers.delete(callback);
+}
+
+function getDefaultOpenerSnapshot() {
+  return defaultOpenerSnapshot;
+}
+
+function updateDefaultOpener(entry: FileAssociationEntry | null) {
+  defaultOpenerSnapshot = { entry };
+  if (entry) {
+    localStorageAdapter.write(STORAGE_KEY_SFTP_DEFAULT_OPENER, entry);
+  } else {
+    localStorageAdapter.remove(STORAGE_KEY_SFTP_DEFAULT_OPENER);
+  }
+  defaultOpenerSubscribers.forEach(callback => callback());
+}
+
+// ---------------------------------------------------------------------------
+// Hook
+// ---------------------------------------------------------------------------
+
 export function useSftpFileAssociations() {
   const snapshot = useSyncExternalStore(subscribe, getSnapshot, getSnapshot);
   const associations = snapshot.associations;
 
+  const defaultOpenerState = useSyncExternalStore(subscribeDefaultOpener, getDefaultOpenerSnapshot, getDefaultOpenerSnapshot);
+
   // Listen for storage events from other tabs/windows
   useEffect(() => {
     const handleStorage = (e: StorageEvent) => {
       if (e.key === STORAGE_KEY_SFTP_FILE_ASSOCIATIONS) {
         updateAssociations(loadFromStorage());
+      } else if (e.key === STORAGE_KEY_SFTP_DEFAULT_OPENER) {
+        updateDefaultOpener(
+          localStorageAdapter.read<FileAssociationEntry>(STORAGE_KEY_SFTP_DEFAULT_OPENER) ?? null,
+        );
       }
     };
     window.addEventListener('storage', handleStorage);
@@ -86,23 +117,49 @@ export function useSftpFileAssociations() {
   }, []);
 
   /**
-   * Get the opener entry for a file based on its extension
+   * Get the opener entry for a file based on its extension.
+   * Falls back to the default opener when no per-extension association exists.
    */
   const getOpenerForFile = useCallback((fileName: string): FileAssociationEntry | null => {
     const ext = getFileExtension(fileName);
-    return associations[ext] || null;
-  }, [associations]);
+    if (associations[ext]) return associations[ext];
+    // Fall back to default opener, but skip built-in editor for binary files
+    const fallback = defaultOpenerState.entry;
+    if (fallback && fallback.openerType === 'builtin-editor' && isKnownBinaryFile(fileName)) {
+      return null;
+    }
+    return fallback;
+  }, [associations, defaultOpenerState]);
+
+  /**
+   * Get the default (fallback) opener, if set.
+   */
+  const getDefaultOpener = useCallback((): FileAssociationEntry | null => {
+    return defaultOpenerState.entry;
+  }, [defaultOpenerState]);
+
+  /**
+   * Set the default opener used when no per-extension association exists.
+   */
+  const setDefaultOpener = useCallback((openerType: FileOpenerType, systemApp?: SystemAppInfo) => {
+    updateDefaultOpener({ openerType, systemApp });
+  }, []);
+
+  /**
+   * Remove the default opener.
+   */
+  const removeDefaultOpener = useCallback(() => {
+    updateDefaultOpener(null);
+  }, []);
 
   /**
    * Set the opener type for a specific extension
    */
   const setOpenerForExtension = useCallback((
-    extension: string, 
+    extension: string,
     openerType: FileOpenerType,
     systemApp?: SystemAppInfo
   ) => {
-    console.log('[SftpFileAssociations] setOpenerForExtension called with:', { extension, openerType, systemApp });
-    console.log('[SftpFileAssociations] Current associations before update:', snapshotRef.associations);
     updateAssociations({
       ...snapshotRef.associations,
       [extension.toLowerCase()]: { openerType, systemApp },
@@ -119,16 +176,14 @@ export function useSftpFileAssociations() {
   }, []);
 
   /**
-   * Get all associations as an array
+   * Get all per-extension associations as an array.
    */
   const getAllAssociations = useCallback((): FileAssociation[] => {
-    const result = Object.entries(associations).map(([extension, entry]: [string, FileAssociationEntry]) => ({
+    return Object.entries(associations).map(([extension, entry]: [string, FileAssociationEntry]) => ({
       extension,
       openerType: entry.openerType,
       systemApp: entry.systemApp,
     }));
-    console.log('[SftpFileAssociations] getAllAssociations called, returning', result.length, 'items:', result);
-    return result;
   }, [associations]);
 
   /**
@@ -141,6 +196,9 @@ export function useSftpFileAssociations() {
   return {
     associations,
     getOpenerForFile,
+    getDefaultOpener,
+    setDefaultOpener,
+    removeDefaultOpener,
     setOpenerForExtension,
     removeAssociation,
     getAllAssociations,

application/state/useSftpState.ts

@@ -57,6 +57,7 @@ export const useSftpState = (
     getActivePane,
     updateTab,
     updateActiveTab,
+    clearSelectionsExcept,
     setTabShowHiddenFiles,
     addTab,
     closeTab,
@@ -110,6 +111,30 @@ export const useSftpState = (
     }
   }, []);
 
+  const getPaneByConnectionId = useCallback((connectionId: string) => {
+    for (const tab of leftTabsRef.current.tabs) {
+      if (tab.connection?.id === connectionId) return tab;
+    }
+    for (const tab of rightTabsRef.current.tabs) {
+      if (tab.connection?.id === connectionId) return tab;
+    }
+    return null;
+  }, [leftTabsRef, rightTabsRef]);
+
+  const getTabByConnectionId = useCallback((connectionId: string) => {
+    for (const tab of leftTabsRef.current.tabs) {
+      if (tab.connection?.id === connectionId) {
+        return { side: "left" as const, tabId: tab.id, pane: tab };
+      }
+    }
+    for (const tab of rightTabsRef.current.tabs) {
+      if (tab.connection?.id === connectionId) {
+        return { side: "right" as const, tabId: tab.id, pane: tab };
+      }
+    }
+    return null;
+  }, [leftTabsRef, rightTabsRef]);
+
   // Ref to track pending reconnections to avoid multiple reconnect attempts
   const reconnectingRef = useRef<{ left: boolean; right: boolean }>({
     left: false,
@@ -183,10 +208,14 @@ export const useSftpState = (
     selectAll,
     getFilteredFiles,
     createDirectory,
+    createDirectoryAtPath,
     createFile,
+    createFileAtPath,
     deleteFiles,
     deleteFilesAtPath,
     renameFile,
+    renameFileAtPath,
+    moveEntriesToPath,
     changePermissions,
   } = useSftpPaneActions({
     hosts,
@@ -207,6 +236,7 @@ export const useSftpState = (
     listRemoteFiles,
     handleSessionError,
     isSessionError,
+    clearSelectionsExcept,
     dirCacheTtlMs: DIR_CACHE_TTL_MS,
   });
 
@@ -244,6 +274,7 @@ export const useSftpState = (
     conflicts,
     activeTransfersCount,
     startTransfer,
+    downloadToLocal,
     addExternalUpload,
     updateExternalUpload,
     cancelTransfer,
@@ -254,8 +285,13 @@ export const useSftpState = (
     resolveConflict,
   } = useSftpTransfers({
     getActivePane,
+    getPaneByConnectionId,
+    getTabByConnectionId,
+    updateTab,
     refresh,
+    clearCacheForConnection,
     sftpSessionsRef,
+    connectionCacheKeyMapRef,
     listLocalFiles,
     listRemoteFiles,
     handleSessionError,
@@ -305,15 +341,20 @@ export const useSftpState = (
     toggleSelection,
     rangeSelect,
     clearSelection,
+    clearSelectionsExcept,
     selectAll,
     setFilter,
     setFilenameEncoding,
     setShowHiddenFiles,
     createDirectory,
+    createDirectoryAtPath,
     createFile,
+    createFileAtPath,
     deleteFiles,
     deleteFilesAtPath,
     renameFile,
+    renameFileAtPath,
+    moveEntriesToPath,
     changePermissions,
     readTextFile,
     readBinaryFile,
@@ -324,6 +365,7 @@ export const useSftpState = (
     cancelExternalUpload,
     selectApplication,
     startTransfer,
+    downloadToLocal,
     addExternalUpload,
     updateExternalUpload,
     cancelTransfer,
@@ -332,6 +374,7 @@ export const useSftpState = (
     dismissTransfer,
     resolveConflict,
     getSftpIdForConnection,
+    reportSessionError: handleSessionError,
   });
   methodsRef.current = {
     getFilteredFiles,
@@ -352,15 +395,20 @@ export const useSftpState = (
     toggleSelection,
     rangeSelect,
     clearSelection,
+    clearSelectionsExcept,
     selectAll,
     setFilter,
     setFilenameEncoding,
     setShowHiddenFiles,
     createDirectory,
+    createDirectoryAtPath,
     createFile,
+    createFileAtPath,
     deleteFiles,
     deleteFilesAtPath,
     renameFile,
+    renameFileAtPath,
+    moveEntriesToPath,
     changePermissions,
     readTextFile,
     readBinaryFile,
@@ -371,6 +419,7 @@ export const useSftpState = (
     cancelExternalUpload,
     selectApplication,
     startTransfer,
+    downloadToLocal,
     addExternalUpload,
     updateExternalUpload,
     cancelTransfer,
@@ -379,6 +428,7 @@ export const useSftpState = (
     dismissTransfer,
     resolveConflict,
     getSftpIdForConnection,
+    reportSessionError: handleSessionError,
   };
 
   // Create stable method wrappers that call through methodsRef
@@ -402,6 +452,8 @@ export const useSftpState = (
     toggleSelection: (...args: Parameters<typeof toggleSelection>) => methodsRef.current.toggleSelection(...args),
     rangeSelect: (...args: Parameters<typeof rangeSelect>) => methodsRef.current.rangeSelect(...args),
     clearSelection: (...args: Parameters<typeof clearSelection>) => methodsRef.current.clearSelection(...args),
+    clearSelectionsExcept: (...args: Parameters<typeof clearSelectionsExcept>) =>
+      methodsRef.current.clearSelectionsExcept(...args),
     selectAll: (...args: Parameters<typeof selectAll>) => methodsRef.current.selectAll(...args),
     setFilter: (...args: Parameters<typeof setFilter>) => methodsRef.current.setFilter(...args),
     setFilenameEncoding: (...args: Parameters<typeof setFilenameEncoding>) =>
@@ -409,11 +461,17 @@ export const useSftpState = (
     setShowHiddenFiles: (...args: Parameters<typeof setShowHiddenFiles>) =>
       methodsRef.current.setShowHiddenFiles(...args),
     createDirectory: (...args: Parameters<typeof createDirectory>) => methodsRef.current.createDirectory(...args),
+    createDirectoryAtPath: (...args: Parameters<typeof createDirectoryAtPath>) =>
+      methodsRef.current.createDirectoryAtPath(...args),
     createFile: (...args: Parameters<typeof createFile>) => methodsRef.current.createFile(...args),
+    createFileAtPath: (...args: Parameters<typeof createFileAtPath>) =>
+      methodsRef.current.createFileAtPath(...args),
     deleteFiles: (...args: Parameters<typeof deleteFiles>) => methodsRef.current.deleteFiles(...args),
     deleteFilesAtPath: (...args: Parameters<typeof deleteFilesAtPath>) =>
       methodsRef.current.deleteFilesAtPath(...args),
     renameFile: (...args: Parameters<typeof renameFile>) => methodsRef.current.renameFile(...args),
+    renameFileAtPath: (...args: Parameters<typeof renameFileAtPath>) => methodsRef.current.renameFileAtPath(...args),
+    moveEntriesToPath: (...args: Parameters<typeof moveEntriesToPath>) => methodsRef.current.moveEntriesToPath(...args),
     changePermissions: (...args: Parameters<typeof changePermissions>) => methodsRef.current.changePermissions(...args),
     readTextFile: (...args: Parameters<typeof readTextFile>) => methodsRef.current.readTextFile(...args),
     readBinaryFile: (...args: Parameters<typeof readBinaryFile>) => methodsRef.current.readBinaryFile(...args),
@@ -425,6 +483,7 @@ export const useSftpState = (
     cancelExternalUpload: () => methodsRef.current.cancelExternalUpload(),
     selectApplication: () => methodsRef.current.selectApplication(),
     startTransfer: (...args: Parameters<typeof startTransfer>) => methodsRef.current.startTransfer(...args),
+    downloadToLocal: (...args: Parameters<typeof downloadToLocal>) => methodsRef.current.downloadToLocal(...args),
     addExternalUpload: (...args: Parameters<typeof addExternalUpload>) => methodsRef.current.addExternalUpload(...args),
     updateExternalUpload: (...args: Parameters<typeof updateExternalUpload>) => methodsRef.current.updateExternalUpload(...args),
     cancelTransfer: (...args: Parameters<typeof cancelTransfer>) => methodsRef.current.cancelTransfer(...args),
@@ -433,6 +492,7 @@ export const useSftpState = (
     dismissTransfer: (...args: Parameters<typeof dismissTransfer>) => methodsRef.current.dismissTransfer(...args),
     resolveConflict: (...args: Parameters<typeof resolveConflict>) => methodsRef.current.resolveConflict(...args),
     getSftpIdForConnection: (...args: Parameters<typeof getSftpIdForConnection>) => methodsRef.current.getSftpIdForConnection(...args),
+    reportSessionError: (...args: Parameters<typeof handleSessionError>) => methodsRef.current.reportSessionError(...args),
     activeFileWatchCountRef,
   }), [activeFileWatchCountRef]); // activeFileWatchCountRef is a stable ref
 

application/state/useStoredNumber.ts

@@ -0,0 +1,29 @@
+import { useCallback, useState } from "react";
+import { localStorageAdapter } from "../../infrastructure/persistence/localStorageAdapter";
+
+/**
+ * Hook for reading a number from localStorage with lazy persistence.
+ * Unlike useStoredString/useStoredBoolean, this hook does NOT auto-persist
+ * on every state change — call `persist()` explicitly when ready (e.g. on
+ * mouseup after a drag). This avoids flooding localStorage during
+ * high-frequency updates like resize drags.
+ */
+export const useStoredNumber = (
+    storageKey: string,
+    fallback: number,
+    clamp?: { min: number; max: number },
+) => {
+    const [value, setValue] = useState<number>(() => {
+        const stored = localStorageAdapter.readNumber(storageKey);
+        if (stored === null) return fallback;
+        if (clamp) return Math.max(clamp.min, Math.min(clamp.max, stored));
+        return stored;
+    });
+
+    const persist = useCallback(
+        (v: number) => localStorageAdapter.writeNumber(storageKey, v),
+        [storageKey],
+    );
+
+    return [value, setValue, persist] as const;
+};

application/state/useTerminalBackend.ts

@@ -96,7 +96,7 @@ export const useTerminalBackend = () => {
     return bridge.onSessionExit(sessionId, cb);
   }, []);
 
-  const onChainProgress = useCallback((cb: (hop: number, total: number, label: string, status: string) => void) => {
+  const onChainProgress = useCallback((cb: (sessionId: string, hop: number, total: number, label: string, status: string, error?: string) => void) => {
     const bridge = netcattyBridge.get();
     return bridge?.onChainProgress?.(cb);
   }, []);

application/state/useUpdateCheck.ts

@@ -1,7 +1,7 @@
 import { useCallback, useEffect, useRef, useState } from 'react';
 import { checkForUpdates, getReleaseUrl, type ReleaseInfo, type UpdateCheckResult } from '../../infrastructure/services/updateService';
 import { localStorageAdapter } from '../../infrastructure/persistence/localStorageAdapter';
-import { STORAGE_KEY_UPDATE_DISMISSED_VERSION, STORAGE_KEY_UPDATE_LAST_CHECK, STORAGE_KEY_UPDATE_LATEST_RELEASE, STORAGE_KEY_AUTO_UPDATE_ENABLED } from '../../infrastructure/config/storageKeys';
+import { STORAGE_KEY_UPDATE_DISMISSED_VERSION, STORAGE_KEY_UPDATE_LAST_CHECK, STORAGE_KEY_UPDATE_LATEST_RELEASE, STORAGE_KEY_AUTO_UPDATE_ENABLED, STORAGE_KEY_DEBUG_UPDATE_DEMO } from '../../infrastructure/config/storageKeys';
 import { netcattyBridge } from '../../infrastructure/services/netcattyBridge';
 
 // Check for updates at most once per hour
@@ -13,15 +13,10 @@ const UPDATE_CHECK_INTERVAL_MS = 60 * 60 * 1000;
 // arrives after 8s the duplicate check is avoided.
 const STARTUP_CHECK_DELAY_MS = 8000;
 // Enable demo mode for development (set via localStorage: localStorage.setItem('debug.updateDemo', '1'))
-const IS_UPDATE_DEMO_MODE = typeof window !== 'undefined' && 
-  window.localStorage?.getItem('debug.updateDemo') === '1';
+const IS_UPDATE_DEMO_MODE = localStorageAdapter.readString(STORAGE_KEY_DEBUG_UPDATE_DEMO) === '1';
 
-// Debug logging for update checks
-const debugLog = (...args: unknown[]) => {
-  if (IS_UPDATE_DEMO_MODE || (typeof window !== 'undefined' && window.localStorage?.getItem('debug.updateCheck') === '1')) {
-    console.log('[UpdateCheck]', ...args);
-  }
-};
+// Debug logging for update checks (no-op in production)
+const debugLog = (..._args: unknown[]) => {};
 
 export type AutoDownloadStatus = 'idle' | 'downloading' | 'ready' | 'error';
 
@@ -48,6 +43,8 @@ export interface UseUpdateCheckResult {
   dismissUpdate: () => void;
   openReleasePage: () => void;
   installUpdate: () => void;
+  startDownload: () => void;
+  isUpdateDemoMode: boolean;
 }
 
 /**
@@ -518,6 +515,46 @@ export function useUpdateCheck(options?: { autoUpdateEnabled?: boolean }): UseUp
     netcattyBridge.get()?.installUpdate?.();
   }, []);
 
+  const startDownload = useCallback(async () => {
+    if (autoDownloadStatusRef.current === 'downloading' || autoDownloadStatusRef.current === 'ready') return;
+    const bridge = netcattyBridge.get();
+    try {
+      const checkResult = await bridge?.checkForUpdate?.();
+      if (!checkResult || checkResult.checking === true || checkResult.ready === true || checkResult.downloading === true) return;
+      if (checkResult.supported === false) {
+        openReleasePage();
+        return;
+      }
+      if (checkResult.available === false) {
+        openReleasePage();
+        return;
+      }
+    } catch {
+      return;
+    }
+    setUpdateState((prev) => ({
+      ...prev,
+      autoDownloadStatus: 'downloading',
+      downloadPercent: 0,
+      downloadError: null,
+    }));
+    void bridge?.downloadUpdate?.().then((res) => {
+      if (res && !res.success) {
+        setUpdateState((prev) => ({
+          ...prev,
+          autoDownloadStatus: 'error',
+          downloadError: res.error || 'Download failed',
+        }));
+      }
+    }).catch(() => {
+      setUpdateState((prev) => ({
+        ...prev,
+        autoDownloadStatus: 'error',
+        downloadError: 'Download failed',
+      }));
+    });
+  }, [openReleasePage]);
+
   // Startup check with delay - runs once on mount
   useEffect(() => {
     debugLog('Startup check effect mounted, IS_UPDATE_DEMO_MODE:', IS_UPDATE_DEMO_MODE);
@@ -657,5 +694,7 @@ export function useUpdateCheck(options?: { autoUpdateEnabled?: boolean }): UseUp
     dismissUpdate,
     openReleasePage,
     installUpdate,
+    startDownload,
+    isUpdateDemoMode: IS_UPDATE_DEMO_MODE,
   };
 }

application/syncPayload.ts

@@ -12,11 +12,13 @@ import type {
   Identity,
   KnownHost,
   PortForwardingRule,
+  SftpBookmark,
   Snippet,
   SSHKey,
-} from './models';
-import type { SyncPayload } from './sync';
+} from '../domain/models';
+import type { SyncPayload } from '../domain/sync';
 import { localStorageAdapter } from '../infrastructure/persistence/localStorageAdapter';
+import { rehydrateGlobalBookmarks } from '../components/sftp/hooks/useGlobalSftpBookmarks';
 import {
   STORAGE_KEY_THEME,
   STORAGE_KEY_UI_THEME_LIGHT,
@@ -37,7 +39,9 @@ import {
   STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES,
   STORAGE_KEY_SFTP_USE_COMPRESSED_UPLOAD,
   STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR,
+  STORAGE_KEY_SFTP_GLOBAL_BOOKMARKS,
   STORAGE_KEY_CUSTOM_THEMES,
+  STORAGE_KEY_IMMERSIVE_MODE,
 } from '../infrastructure/config/storageKeys';
 
 // ---------------------------------------------------------------------------
@@ -56,7 +60,7 @@ export interface SyncableVaultData {
 }
 
 /** Callbacks used by `applySyncPayload` to import data into local state. */
-export interface SyncPayloadImporters {
+interface SyncPayloadImporters {
   /** Import vault data (hosts, keys, identities, snippets, customGroups, snippetPackages, knownHosts). */
   importVaultData: (jsonString: string) => void;
   /** Import port-forwarding rules (lives outside the vault hook). */
@@ -74,9 +78,12 @@ const SYNCABLE_TERMINAL_KEYS = [
   'scrollback', 'drawBoldInBrightColors', 'fontLigatures', 'fontWeight', 'fontWeightBold',
   'linePadding', 'cursorShape', 'cursorBlink', 'minimumContrastRatio',
   'scrollOnInput', 'scrollOnOutput', 'scrollOnKeyPress', 'scrollOnPaste',
+  'smoothScrolling',
   'rightClickBehavior', 'copyOnSelect', 'middleClickPaste', 'wordSeparators',
   'linkModifier', 'keywordHighlightEnabled', 'keywordHighlightRules',
   'keepaliveInterval', 'disableBracketedPaste', 'osc52Clipboard',
+  'autocompleteEnabled', 'autocompleteGhostText', 'autocompletePopupMenu',
+  'autocompleteDebounceMs', 'autocompleteMinChars', 'autocompleteMaxSuggestions',
 ] as const;
 
 /**
@@ -157,6 +164,14 @@ export function collectSyncableSettings(): SyncPayload['settings'] {
   const autoOpenSidebar = localStorageAdapter.readString(STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR);
   if (autoOpenSidebar === 'true' || autoOpenSidebar === 'false') settings.sftpAutoOpenSidebar = autoOpenSidebar === 'true';
 
+  // SFTP Bookmarks (global only — local bookmarks are device-specific)
+  const globalBookmarks = localStorageAdapter.read<SftpBookmark[]>(STORAGE_KEY_SFTP_GLOBAL_BOOKMARKS);
+  if (globalBookmarks && Array.isArray(globalBookmarks)) settings.sftpGlobalBookmarks = globalBookmarks;
+
+  // Immersive mode
+  const immersive = localStorageAdapter.readString(STORAGE_KEY_IMMERSIVE_MODE);
+  if (immersive === 'true' || immersive === 'false') settings.immersiveMode = immersive === 'true';
+
   return Object.keys(settings).length > 0 ? settings : undefined;
 }
 
@@ -164,7 +179,7 @@ export function collectSyncableSettings(): SyncPayload['settings'] {
  * Apply synced settings to localStorage. Merges terminal settings
  * to preserve platform-specific fields.
  */
-export function applySyncableSettings(settings: NonNullable<SyncPayload['settings']>): void {
+function applySyncableSettings(settings: NonNullable<SyncPayload['settings']>): void {
   // Theme & Appearance
   if (settings.theme != null) localStorageAdapter.writeString(STORAGE_KEY_THEME, settings.theme);
   if (settings.lightUiThemeId != null) localStorageAdapter.writeString(STORAGE_KEY_UI_THEME_LIGHT, settings.lightUiThemeId);
@@ -215,6 +230,12 @@ export function applySyncableSettings(settings: NonNullable<SyncPayload['setting
   if (settings.sftpShowHiddenFiles != null) localStorageAdapter.writeString(STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES, String(settings.sftpShowHiddenFiles));
   if (settings.sftpUseCompressedUpload != null) localStorageAdapter.writeString(STORAGE_KEY_SFTP_USE_COMPRESSED_UPLOAD, String(settings.sftpUseCompressedUpload));
   if (settings.sftpAutoOpenSidebar != null) localStorageAdapter.writeString(STORAGE_KEY_SFTP_AUTO_OPEN_SIDEBAR, String(settings.sftpAutoOpenSidebar));
+
+  // SFTP Bookmarks (global only)
+  if (settings.sftpGlobalBookmarks != null) localStorageAdapter.write(STORAGE_KEY_SFTP_GLOBAL_BOOKMARKS, settings.sftpGlobalBookmarks);
+
+  // Immersive mode
+  if (settings.immersiveMode != null) localStorageAdapter.writeString(STORAGE_KEY_IMMERSIVE_MODE, String(settings.immersiveMode));
 }
 
 // ---------------------------------------------------------------------------
@@ -287,6 +308,8 @@ export function applySyncPayload(
   // Apply synced settings
   if (payload.settings) {
     applySyncableSettings(payload.settings);
+    // Rehydrate in-memory bookmark snapshot after localStorage was updated
+    if (payload.settings.sftpGlobalBookmarks != null) rehydrateGlobalBookmarks();
     importers.onSettingsApplied?.();
   }
 }

components/AIChatSidePanel.tsx

@@ -6,7 +6,6 @@
  *
  * Core logic is decomposed into focused hooks:
  * - useAIChatStreaming: stream processing, abort management, agent sub-flows
- * - useToolApproval: tool approval workflow, timeouts, resume logic
  * - useConversationExport: export formats & object URL lifecycle
  */
 
@@ -22,6 +21,7 @@ import { useI18n } from '../application/i18n/I18nProvider';
 import { useWindowControls } from '../application/state/useWindowControls';
 import { useFileUpload } from '../application/state/useFileUpload';
 import type {
+  AgentModelPreset,
   AIPermissionMode,
   AISession,
   AISessionScope,
@@ -40,10 +40,24 @@ import ChatInput from './ai/ChatInput';
 import ChatMessageList from './ai/ChatMessageList';
 import ConversationExport from './ai/ConversationExport';
 import { useAIChatStreaming, getNetcattyBridge } from './ai/hooks/useAIChatStreaming';
-import { useToolApproval } from './ai/hooks/useToolApproval';
+import { clearAllPendingApprovals } from '../infrastructure/ai/shared/approvalGate';
 import { useConversationExport } from './ai/hooks/useConversationExport';
 import type { ExecutorContext } from '../infrastructure/ai/cattyAgent/executor';
 
+function isCopilotAgentConfig(agent?: ExternalAgentConfig): boolean {
+  if (!agent) return false;
+  const tokens = [
+    agent.id,
+    agent.name,
+    agent.icon,
+    agent.command,
+    agent.acpCommand,
+  ]
+    .filter((value): value is string => typeof value === 'string' && value.length > 0)
+    .map((value) => value.split('/').pop()?.toLowerCase() ?? value.toLowerCase());
+  return tokens.some((token) => token.includes('copilot'));
+}
+
 // -------------------------------------------------------------------
 // Props
 // -------------------------------------------------------------------
@@ -57,6 +71,7 @@ interface AIChatSidePanelProps {
   deleteSession: (sessionId: string, scopeKey?: string) => void;
   updateSessionTitle: (sessionId: string, title: string) => void;
   updateSessionExternalSessionId: (sessionId: string, externalSessionId: string | undefined) => void;
+  retargetSessionScope: (sessionId: string, scope: AISessionScope) => void;
   addMessageToSession: (sessionId: string, message: ChatMessage) => void;
   updateLastMessage: (
     sessionId: string,
@@ -102,6 +117,9 @@ interface AIChatSidePanelProps {
     label: string;
     os?: string;
     username?: string;
+    protocol?: string;
+    shellType?: string;
+    deviceType?: string;
     connected: boolean;
   }>;
   resolveExecutorContext?: (scope: {
@@ -151,6 +169,27 @@ function buildAcpHistoryMessages(messages: ChatMessage[]): Array<{ role: 'user'
   });
 }
 
+function getSessionScopeMatchRank(
+  session: AISession,
+  scopeType: 'terminal' | 'workspace',
+  scopeTargetId?: string,
+  scopeHostIds?: string[],
+  activeTerminalTargetIds?: Set<string>,
+): number {
+  if (session.scope.type !== scopeType) return 0;
+  if (session.scope.targetId === scopeTargetId) return 2;
+
+  if (scopeType !== 'terminal' || !scopeHostIds?.length || !session.scope.hostIds?.length) {
+    return 0;
+  }
+
+  if (session.scope.targetId && activeTerminalTargetIds?.has(session.scope.targetId)) {
+    return 0;
+  }
+
+  return session.scope.hostIds.some((hostId) => scopeHostIds.includes(hostId)) ? 1 : 0;
+}
+
 // -------------------------------------------------------------------
 // Component
 // -------------------------------------------------------------------
@@ -163,6 +202,7 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
   deleteSession,
   updateSessionTitle,
   updateSessionExternalSessionId,
+  retargetSessionScope,
   addMessageToSession,
   updateLastMessage,
   updateMessageById,
@@ -214,7 +254,6 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
     streamingSessionIds,
     setStreamingForScope,
     abortControllersRef,
-    processCattyStream,
     sendToCattyAgent,
     sendToExternalAgent,
     reportStreamError,
@@ -225,42 +264,122 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
     updateMessageById,
   });
 
-  // ── Tool approval hook ──
-  const {
-    pendingApprovalContextRef,
-    setPendingApproval,
-    handleApprovalResponse,
-  } = useToolApproval({
-    addMessageToSession,
-    updateLastMessage,
-    updateMessageById,
-    setStreamingForScope,
-    abortControllersRef,
-    processCattyStream,
-    t,
-  });
 
   // Per-scope active session ID
-  const activeSessionId = activeSessionIdMap[scopeKey] ?? null;
-  const isStreaming = activeSessionId ? streamingSessionIds.has(activeSessionId) : false;
+  const activeSessionIdForScope = activeSessionIdMap[scopeKey] ?? null;
   const setActiveSessionId = useCallback((id: string | null) => {
     setActiveSessionIdForScope(scopeKey, id);
   }, [scopeKey, setActiveSessionIdForScope]);
 
-  // Restore agent selector from active session when scope changes
-  useEffect(() => {
-    if (activeSessionId) {
-      const session = sessions.find((s) => s.id === activeSessionId);
-      if (session) {
-        setCurrentAgentId(session.agentId);
+  const activeTerminalTargetIds = useMemo(() => {
+    const targetIds = new Set<string>();
+    for (const [sessionScopeKey, sessionId] of Object.entries(activeSessionIdMap)) {
+      if (!sessionScopeKey.startsWith('terminal:') || !sessionId) continue;
+      const targetId = sessionScopeKey.slice('terminal:'.length);
+      if (!targetId || targetId === scopeTargetId) continue;
+      targetIds.add(targetId);
+    }
+    return targetIds;
+  }, [activeSessionIdMap, scopeTargetId]);
+
+  const historySessions = useMemo(
+    () =>
+      sessions
+        .map((session) => ({
+          session,
+          matchRank: getSessionScopeMatchRank(session, scopeType, scopeTargetId, scopeHostIds, activeTerminalTargetIds),
+        }))
+        .filter(({ matchRank }) => matchRank > 0)
+        .sort((a, b) => b.matchRank - a.matchRank || b.session.updatedAt - a.session.updatedAt)
+        .map(({ session }) => session),
+    [sessions, scopeType, scopeTargetId, scopeHostIds, activeTerminalTargetIds],
+  );
+
+  const activeSession = useMemo(() => {
+    if (activeSessionIdForScope) {
+      const session = sessions.find((s) => s.id === activeSessionIdForScope);
+      if (session && getSessionScopeMatchRank(session, scopeType, scopeTargetId, scopeHostIds, activeTerminalTargetIds) > 0) {
+        return session;
       }
     }
-  }, [scopeKey, activeSessionId, sessions]);
+    return historySessions[0] ?? null;
+  }, [sessions, activeSessionIdForScope, historySessions, scopeType, scopeTargetId, scopeHostIds, activeTerminalTargetIds]);
+
+  const activeSessionId = activeSession?.id ?? activeSessionIdForScope;
+  const isStreaming = activeSessionId ? streamingSessionIds.has(activeSessionId) : false;
+
+  const shouldRetargetActiveSession = useMemo(() => {
+    if (!activeSession || scopeType !== 'terminal' || !scopeTargetId || !scopeHostIds?.length) {
+      return false;
+    }
+
+    if (activeSession.scope.type !== scopeType || activeSession.scope.targetId === scopeTargetId) {
+      return false;
+    }
+
+    // Don't retarget sessions that are actively owned by another terminal
+    if (activeSession.scope.targetId && activeTerminalTargetIds.has(activeSession.scope.targetId)) {
+      return false;
+    }
+
+    return activeSession.scope.hostIds?.some((hostId) => scopeHostIds.includes(hostId)) ?? false;
+  }, [activeSession, scopeType, scopeTargetId, scopeHostIds, activeTerminalTargetIds]);
+
+  useEffect(() => {
+    if (!activeSession) return;
+
+    if (shouldRetargetActiveSession && isVisible) {
+      // Full cleanup of any in-flight work — the session came from a disconnected
+      // terminal, so any active response, pending approvals, or exec is dead.
+      if (streamingSessionIds.has(activeSession.id)) {
+        const controller = abortControllersRef.current.get(activeSession.id);
+        if (controller) {
+          controller.abort();
+          abortControllersRef.current.delete(activeSession.id);
+        }
+        setStreamingForScope(activeSession.id, false);
+        clearAllPendingApprovals(activeSession.id);
+        const bridge = getNetcattyBridge();
+        bridge?.aiCattyCancelExec?.(activeSession.id);
+        bridge?.aiAcpCancel?.('', activeSession.id);
+      }
+      retargetSessionScope(activeSession.id, {
+        type: scopeType,
+        targetId: scopeTargetId,
+        hostIds: scopeHostIds,
+      });
+      return;
+    }
+
+    if (isVisible && activeSessionIdForScope !== activeSession.id) {
+      setActiveSessionId(activeSession.id);
+    }
+  }, [
+    activeSession,
+    activeSessionIdForScope,
+    retargetSessionScope,
+    isVisible,
+    scopeHostIds,
+    scopeTargetId,
+    scopeType,
+    setActiveSessionId,
+    setStreamingForScope,
+    shouldRetargetActiveSession,
+    streamingSessionIds,
+    abortControllersRef,
+  ]);
+
+  // Restore agent selector from active session when scope changes
+  useEffect(() => {
+    if (activeSession) {
+      setCurrentAgentId(activeSession.agentId);
+    }
+  }, [scopeKey, activeSession]);
 
   // Proactively sync terminal session metadata to main process whenever scope or sessions change
   useEffect(() => {
     const bridge = getNetcattyBridge();
-    if (bridge?.aiMcpUpdateSessions && terminalSessions.length > 0) {
+    if (bridge?.aiMcpUpdateSessions) {
       void bridge.aiMcpUpdateSessions(terminalSessions, activeSessionId ?? undefined);
     }
   }, [terminalSessions, scopeKey, activeSessionId]);
@@ -308,12 +427,6 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
     [enableAgent, setExternalAgents],
   );
 
-  // Active session (scoped)
-  const activeSession = useMemo(
-    () => sessions.find((s) => s.id === activeSessionId) ?? null,
-    [sessions, activeSessionId],
-  );
-
   const messages = activeSession?.messages ?? [];
 
   // ── Export hook ──
@@ -327,15 +440,62 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
 
   const providerDisplayName = activeProvider?.name ?? '';
   const modelDisplayName = activeModelId || activeProvider?.defaultModel || '';
+  const [runtimeAgentModelPresets, setRuntimeAgentModelPresets] = useState<Record<string, AgentModelPreset[]>>({});
 
   // Agent model presets for the current external agent
   const currentAgentConfig = useMemo(
     () => currentAgentId !== 'catty' ? externalAgents.find(a => a.id === currentAgentId) : undefined,
     [currentAgentId, externalAgents],
   );
+  const isCopilotExternalAgent = useMemo(
+    () => isCopilotAgentConfig(currentAgentConfig),
+    [currentAgentConfig],
+  );
+
+  // Ref to read agentModelMap inside the effect without re-triggering it
+  // when setAgentModel updates the map (avoids double ACP spawn).
+  const agentModelMapRef = useRef(agentModelMap);
+  agentModelMapRef.current = agentModelMap;
+
+  useEffect(() => {
+    if (!currentAgentConfig?.acpCommand) return;
+    if (!isCopilotExternalAgent) return;
+
+    const bridge = getNetcattyBridge();
+    if (!bridge?.aiAcpListModels) return;
+
+    let cancelled = false;
+    void bridge.aiAcpListModels(
+      currentAgentConfig.acpCommand,
+      currentAgentConfig.acpArgs || [],
+      undefined,
+      undefined,
+      `models_${currentAgentId}`,
+    ).then((result) => {
+      if (cancelled || !result?.ok || !Array.isArray(result.models)) return;
+      const knownModelIds = new Set(result.models.map((model) => model.id));
+      setRuntimeAgentModelPresets((prev) => ({
+        ...prev,
+        [currentAgentId]: result.models ?? [],
+      }));
+      const storedModelId = agentModelMapRef.current[currentAgentId];
+      if (result.currentModelId && (!storedModelId || !knownModelIds.has(storedModelId))) {
+        setAgentModel(currentAgentId, result.currentModelId);
+      }
+    }).catch((err) => {
+      if (!cancelled) {
+        console.warn('[AIChatSidePanel] Failed to load ACP agent models:', err);
+      }
+    });
+
+    return () => {
+      cancelled = true;
+    };
+  }, [currentAgentConfig, currentAgentId, isCopilotExternalAgent, setAgentModel]);
+
   const agentModelPresets = useMemo(
-    () => getAgentModelPresets(currentAgentConfig?.command),
-    [currentAgentConfig?.command],
+    () => runtimeAgentModelPresets[currentAgentId] ?? getAgentModelPresets(currentAgentConfig?.command),
+    [currentAgentId, currentAgentConfig?.command, runtimeAgentModelPresets],
   );
 
   // Per-agent model: recall last selection or use first preset as default
@@ -359,15 +519,6 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
     setAgentModel(currentAgentId, modelId);
   }, [currentAgentId, setAgentModel]);
 
-  // Filtered sessions for history (matching current scope type)
-  const historySessions = useMemo(
-    () =>
-      sessions
-        .filter((s) => s.scope.type === scopeType && s.scope.targetId === scopeTargetId)
-        .sort((a, b) => b.updatedAt - a.updatedAt),
-    [sessions, scopeType, scopeTargetId],
-  );
-
   // -------------------------------------------------------------------
   // Handlers
   // -------------------------------------------------------------------
@@ -434,12 +585,34 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
 
   /** Ensure a session exists for the current scope and return its ID. */
   const ensureSession = useCallback((): string => {
-    if (activeSessionId) return activeSessionId;
+    if (activeSession && sessionsRef.current.some((session) => session.id === activeSession.id)) {
+      if (shouldRetargetActiveSession) {
+        retargetSessionScope(activeSession.id, {
+          type: scopeType,
+          targetId: scopeTargetId,
+          hostIds: scopeHostIds,
+        });
+      } else if (activeSessionIdForScope !== activeSession.id) {
+        setActiveSessionId(activeSession.id);
+      }
+      return activeSession.id;
+    }
     const scope: AISessionScope = { type: scopeType, targetId: scopeTargetId, hostIds: scopeHostIds };
     const session = createSession(scope, currentAgentId);
     setActiveSessionId(session.id);
     return session.id;
-  }, [activeSessionId, scopeType, scopeTargetId, scopeHostIds, currentAgentId, createSession, setActiveSessionId]);
+  }, [
+    activeSession,
+    activeSessionIdForScope,
+    createSession,
+    currentAgentId,
+    retargetSessionScope,
+    scopeHostIds,
+    scopeTargetId,
+    scopeType,
+    setActiveSessionId,
+    shouldRetargetActiveSession,
+  ]);
 
   // -------------------------------------------------------------------
   // Main send handler (thin orchestrator)
@@ -482,7 +655,9 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
     const assistantMsgId = generateId();
     addMessageToSession(sessionId, {
       id: assistantMsgId, role: 'assistant', content: '', timestamp: Date.now(),
-      model: isExternalAgent ? (agentConfig?.name || 'external') : (activeModelId || activeProvider?.defaultModel || ''),
+      model: isExternalAgent
+        ? (selectedAgentModel || agentConfig?.name || 'external')
+        : (activeModelId || activeProvider?.defaultModel || ''),
       providerId: isExternalAgent ? undefined : activeProvider?.providerId,
     });
 
@@ -530,7 +705,6 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
         terminalSessions,
         webSearchConfig,
         getExecutorContext: () => buildExecutorContextForScope(toolScope),
-        setPendingApproval,
         autoTitleSession,
       }, attachments.length > 0 ? attachments : undefined);
     }
@@ -541,7 +715,7 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
     setStreamingForScope, setInputValue, clearFiles,
     sendToExternalAgent, sendToCattyAgent, reportStreamError, autoTitleSession, t,
     abortControllersRef, terminalSessions, providers, selectedAgentModel, updateSessionExternalSessionId,
-    scopeType, scopeTargetId, scopeLabel, globalPermissionMode, commandBlocklist, webSearchConfig, buildExecutorContextForScope, setPendingApproval,
+    scopeType, scopeTargetId, scopeLabel, globalPermissionMode, commandBlocklist, webSearchConfig, buildExecutorContextForScope,
   ]);
 
   const handleStop = useCallback(() => {
@@ -556,11 +730,13 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
       statusText: '',
       executionStatus: msg.executionStatus === 'running' ? 'cancelled' : msg.executionStatus,
     }));
-    // Also clear any pending approval (clears timeout too via setPendingApproval)
-    if (pendingApprovalContextRef.current?.sessionId === activeSessionId) {
-      setPendingApproval(null);
-    }
-  }, [activeSessionId, setStreamingForScope, updateLastMessage, setPendingApproval, abortControllersRef, pendingApprovalContextRef]);
+    // Clear pending approvals for this session (so tool execute functions don't hang)
+    clearAllPendingApprovals(activeSessionId);
+    // Cancel in-flight command executions (Catty Agent + ACP Agent)
+    const bridge = getNetcattyBridge();
+    bridge?.aiCattyCancelExec?.(activeSessionId);
+    bridge?.aiAcpCancel?.('', activeSessionId);
+  }, [activeSessionId, setStreamingForScope, updateLastMessage, abortControllersRef]);
 
   const handleSelectSession = useCallback(
     (sessionId: string) => {
@@ -653,16 +829,7 @@ const AIChatSidePanelInner: React.FC<AIChatSidePanelProps> = ({
           <ChatMessageList
             messages={messages}
             isStreaming={isStreaming}
-            onApprove={(messageId) => void handleApprovalResponse(messageId, true, {
-              globalPermissionMode,
-              commandBlocklist,
-              webSearchConfig,
-            })}
-            onReject={(messageId) => void handleApprovalResponse(messageId, false, {
-              globalPermissionMode,
-              commandBlocklist,
-              webSearchConfig,
-            })}
+            activeSessionId={activeSessionId}
           />
 
           {/* Recent sessions (Zed-style, shown when no messages) */}
@@ -767,9 +934,12 @@ const SessionHistoryDrawer: React.FC<SessionHistoryDrawerProps> = ({
               const timeStr = formatRelativeTime(time, t);
 
               return (
-                <button
+                <div
                   key={session.id}
+                  role="button"
+                  tabIndex={0}
                   onClick={() => onSelect(session.id)}
+                  onKeyDown={(e) => { if (e.key === 'Enter' || e.key === ' ') onSelect(session.id); }}
                   className={cn(
                     'w-full flex items-center justify-between py-2.5 border-b border-border/20 text-left transition-colors cursor-pointer group',
                     isActive ? 'text-foreground' : 'text-foreground/70 hover:text-foreground',
@@ -790,7 +960,7 @@ const SessionHistoryDrawer: React.FC<SessionHistoryDrawerProps> = ({
                       <Trash2 size={12} />
                     </button>
                   </div>
-                </button>
+                </div>
               );
             })
           )}

components/CloudSyncSettings.tsx

@@ -102,11 +102,14 @@ interface StatusDotProps {
 }
 
 const StatusDot: React.FC<StatusDotProps> = ({ status, className }) => {
+    if (status === 'connecting') {
+        return <Loader2 className={cn('w-3.5 h-3.5 animate-spin text-muted-foreground', className)} />;
+    }
+
     const colors = {
         connected: 'bg-green-500',
         syncing: 'bg-blue-500 animate-pulse',
         error: 'bg-red-500',
-        connecting: 'bg-yellow-500 animate-pulse',
         disconnected: 'bg-muted-foreground/50',
     };
 
@@ -279,6 +282,7 @@ interface ProviderCardProps {
     disabled?: boolean; // Disable connect button when another provider is connected
     onEdit?: () => void;
     onConnect: () => void;
+    onCancelConnect?: () => void;
     onDisconnect: () => void;
     onSync: () => void;
 }
@@ -296,6 +300,7 @@ const ProviderCard: React.FC<ProviderCardProps> = ({
     disabled,
     onEdit,
     onConnect,
+    onCancelConnect,
     onDisconnect,
     onSync,
 }) => {
@@ -367,7 +372,9 @@ const ProviderCard: React.FC<ProviderCardProps> = ({
                         {error}
                     </p>
                 ) : (
-                    <p className="text-xs text-muted-foreground mt-1">{t('cloudSync.provider.notConnected')}</p>
+                    <p className="text-xs text-muted-foreground mt-1">
+                        {isConnecting ? t('cloudSync.provider.connecting') : t('cloudSync.provider.notConnected')}
+                    </p>
                 )}
             </div>
 
@@ -408,10 +415,20 @@ const ProviderCard: React.FC<ProviderCardProps> = ({
                             <CloudOff size={14} />
                         </Button>
                     </>
+                ) : isConnecting && onCancelConnect ? (
+                    <Button
+                        size="sm"
+                        variant="outline"
+                        onClick={onCancelConnect}
+                        className="gap-1"
+                    >
+                        <X size={14} />
+                        {t('common.cancel')}
+                    </Button>
                 ) : (
                     <Button
                         size="sm"
-                        onClick={() => { console.log('[ProviderCard] Connect clicked'); onConnect(); }}
+                        onClick={() => { onConnect(); }}
                         className="gap-1"
                         disabled={disabled || isConnecting}
                     >
@@ -611,7 +628,7 @@ interface SyncDashboardProps {
     onClearLocalData?: () => void;
 }
 
-export const SyncDashboard: React.FC<SyncDashboardProps> = ({
+const SyncDashboard: React.FC<SyncDashboardProps> = ({
     onBuildPayload,
     onApplyPayload,
     onClearLocalData,
@@ -689,15 +706,6 @@ export const SyncDashboard: React.FC<SyncDashboardProps> = ({
         }
     };
 
-    // Debug: log provider states
-    console.log('[SyncDashboard] Provider states:', {
-        github: sync.providers.github.status,
-        google: sync.providers.google.status,
-        onedrive: sync.providers.onedrive.status,
-        webdav: sync.providers.webdav.status,
-        s3: sync.providers.s3.status,
-    });
-
     // GitHub Device Flow state
     const [showGitHubModal, setShowGitHubModal] = useState(false);
     const [gitHubUserCode, setGitHubUserCode] = useState('');
@@ -789,12 +797,9 @@ export const SyncDashboard: React.FC<SyncDashboardProps> = ({
 
     // Connect GitHub (disconnect others first - single provider only)
     const handleConnectGitHub = async () => {
-        console.log('[CloudSync] handleConnectGitHub called');
         try {
             await disconnectOtherProviders('github');
-            console.log('[CloudSync] Calling sync.connectGitHub()...');
             const deviceFlow = await sync.connectGitHub();
-            console.log('[CloudSync] Device flow received:', deviceFlow.userCode);
             setGitHubUserCode(deviceFlow.userCode);
             setGitHubVerificationUri(deviceFlow.verificationUri);
             setShowGitHubModal(true);
@@ -812,6 +817,9 @@ export const SyncDashboard: React.FC<SyncDashboardProps> = ({
             toast.success(t('cloudSync.connect.github.success'));
         } catch (error) {
             setIsPollingGitHub(false);
+            setShowGitHubModal(false);
+            // Reset provider status so button is clickable again (without tearing down existing connections)
+            sync.resetProviderStatus('github');
             const message = getNetworkErrorMessage(error, t('common.unknownError'));
             toast.error(message, t('cloudSync.connect.github.failedTitle'));
         }
@@ -825,10 +833,13 @@ export const SyncDashboard: React.FC<SyncDashboardProps> = ({
             // Note: Auth flow is handled automatically by oauthBridge
             toast.info(t('cloudSync.connect.browserContinue'));
         } catch (error) {
-            toast.error(
-                error instanceof Error ? error.message : t('common.unknownError'),
-                t('cloudSync.connect.google.failedTitle'),
-            );
+            // Reset provider status so button is clickable again (without tearing down existing connections)
+            sync.resetProviderStatus('google');
+            const msg = error instanceof Error ? error.message : t('common.unknownError');
+            // Don't show toast for user-initiated cancellation (popup closed)
+            if (!msg.includes('cancelled')) {
+                toast.error(msg, t('cloudSync.connect.google.failedTitle'));
+            }
         }
     };
 
@@ -840,10 +851,13 @@ export const SyncDashboard: React.FC<SyncDashboardProps> = ({
             // Note: Auth flow is handled automatically by oauthBridge
             toast.info(t('cloudSync.connect.browserContinue'));
         } catch (error) {
-            toast.error(
-                error instanceof Error ? error.message : t('common.unknownError'),
-                t('cloudSync.connect.onedrive.failedTitle'),
-            );
+            // Reset provider status so button is clickable again (without tearing down existing connections)
+            sync.resetProviderStatus('onedrive');
+            const msg = error instanceof Error ? error.message : t('common.unknownError');
+            // Don't show toast for user-initiated cancellation (popup closed)
+            if (!msg.includes('cancelled')) {
+                toast.error(msg, t('cloudSync.connect.onedrive.failedTitle'));
+            }
         }
     };
 
@@ -1091,6 +1105,7 @@ export const SyncDashboard: React.FC<SyncDashboardProps> = ({
                         error={sync.providers.google.error}
                         disabled={sync.hasAnyConnectedProvider && !isProviderReadyForSync(sync.providers.google)}
                         onConnect={handleConnectGoogle}
+                        onCancelConnect={sync.cancelOAuthConnect}
                         onDisconnect={() => sync.disconnectProvider('google')}
                         onSync={() => handleSync('google')}
                     />
@@ -1107,6 +1122,7 @@ export const SyncDashboard: React.FC<SyncDashboardProps> = ({
                         error={sync.providers.onedrive.error}
                         disabled={sync.hasAnyConnectedProvider && !isProviderReadyForSync(sync.providers.onedrive)}
                         onConnect={handleConnectOneDrive}
+                        onCancelConnect={sync.cancelOAuthConnect}
                         onDisconnect={() => sync.disconnectProvider('onedrive')}
                         onSync={() => handleSync('onedrive')}
                     />
@@ -1262,6 +1278,9 @@ export const SyncDashboard: React.FC<SyncDashboardProps> = ({
                 onClose={() => {
                     setShowGitHubModal(false);
                     setIsPollingGitHub(false);
+                    // Reset provider status so button is clickable again.
+                    // The background polling will continue until expiry but is harmless.
+                    sync.resetProviderStatus('github');
                 }}
             />
 

components/DistroAvatar.tsx

@@ -1,6 +1,6 @@
 import { Server, Usb } from "lucide-react";
 import React, { memo } from "react";
-import { normalizeDistroId } from "../domain/host";
+import { getEffectiveHostDistro } from "../domain/host";
 import { cn } from "../lib/utils";
 import { Host } from "../types";
 
@@ -58,16 +58,15 @@ const DistroAvatarInner: React.FC<DistroAvatarProps> = ({
   className,
   size = "md",
 }) => {
-  const distro =
-    normalizeDistroId(host.distro) || (host.distro || "").toLowerCase();
+  const distro = getEffectiveHostDistro(host);
   const logo = DISTRO_LOGOS[distro];
   const [errored, setErrored] = React.useState(false);
   const bg = DISTRO_COLORS[distro] || DISTRO_COLORS.default;
 
   // Size variants - all use rounded corners for consistency
   const sizeClasses = {
-    sm: "h-6 w-6 rounded-md",
-    md: "h-11 w-11 rounded-xl",
+    sm: "h-6 w-6 rounded",
+    md: "h-11 w-11 rounded-lg",
     lg: "h-14 w-14 rounded-xl",
   };
   const iconSizes = {
@@ -99,14 +98,14 @@ const DistroAvatarInner: React.FC<DistroAvatarProps> = ({
       <div
         className={cn(
           containerClass,
-          "flex items-center justify-center border border-border/40 overflow-hidden",
+          "flex items-center justify-center overflow-hidden",
           bg,
           className,
         )}
       >
         <img
           src={logo}
-          alt={host.distro || host.os}
+          alt={distro || host.os}
           className={cn("object-contain invert brightness-0", iconSize)}
           onError={() => setErrored(true)}
         />

components/FileOpenerDialog.tsx

@@ -45,7 +45,6 @@ export const FileOpenerDialog: React.FC<FileOpenerDialogProps> = ({
     try {
       const result = await onSelectSystemApp();
       if (result) {
-        console.log('[FileOpenerDialog] Calling onSelect with rememberChoice:', rememberChoice, 'result:', result);
         onSelect('system-app', rememberChoice, result);
         onClose();
       }

components/HostDetailsPanel.tsx

@@ -20,18 +20,31 @@ import {
   Tag,
   TerminalSquare,
   User,
+  FileKey,
+  FolderOpen,
+  Trash2,
   Variable,
   Wifi,
+  Router,
   X,
 } from "lucide-react";
 import React, { useEffect, useMemo, useState, useCallback } from "react";
 import { useI18n } from "../application/i18n/I18nProvider";
 import { useApplicationBackend } from "../application/state/useApplicationBackend";
-import { useSettingsState } from "../application/state/useSettingsState";
+import { getEffectiveHostDistro, LINUX_DISTRO_OPTIONS } from "../domain/host";
 import { customThemeStore } from "../application/state/customThemeStore";
+import {
+  clearHostFontSizeOverride,
+  clearHostThemeOverride,
+  hasHostFontSizeOverride,
+  hasHostThemeOverride,
+  resolveHostTerminalFontSize,
+  resolveHostTerminalThemeId,
+} from "../domain/terminalAppearance";
 import { MIN_FONT_SIZE, MAX_FONT_SIZE } from "../infrastructure/config/fonts";
 import { cn } from "../lib/utils";
 import { EnvVar, Host, Identity, ManagedSource, ProxyConfig, SSHKey } from "../types";
+import { DISTRO_COLORS, DISTRO_LOGOS } from "./DistroAvatar";
 import { DistroAvatar } from "./DistroAvatar";
 import ThemeSelectPanel from "./ThemeSelectPanel";
 import {
@@ -59,7 +72,7 @@ import {
   ProxyPanel,
 } from "./host-details";
 
-type CredentialType = "sshid" | "key" | "certificate" | null;
+type CredentialType = "sshid" | "key" | "certificate" | "localKeyFile" | null;
 type SubPanel =
   | "none"
   | "create-group"
@@ -69,6 +82,8 @@ type SubPanel =
   | "theme-select"
   | "telnet-theme-select";
 
+const LINUX_DISTRO_OPTION_IDS = [...LINUX_DISTRO_OPTIONS];
+
 interface HostDetailsPanelProps {
   initialData?: Host | null;
   availableKeys: SSHKey[];
@@ -78,6 +93,8 @@ interface HostDetailsPanelProps {
   allTags?: string[]; // All available tags for autocomplete
   allHosts?: Host[]; // All hosts for chain selection
   defaultGroup?: string | null; // Default group for new hosts (from current navigation)
+  terminalThemeId: string;
+  terminalFontSize: number;
   onSave: (host: Host) => void;
   onCancel: () => void;
   onCreateGroup?: (groupPath: string) => void; // Callback to create a new group
@@ -93,6 +110,8 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
   allTags = [],
   allHosts = [],
   defaultGroup,
+  terminalThemeId,
+  terminalFontSize,
   onSave,
   onCancel,
   onCreateGroup,
@@ -100,7 +119,6 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
 }) => {
   const { t } = useI18n();
   const { checkSshAgent } = useApplicationBackend();
-  const { terminalThemeId, terminalFontSize } = useSettingsState();
   const [form, setForm] = useState<Host>(
     () =>
       initialData ||
@@ -115,8 +133,7 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
         os: "linux",
         authMethod: "password",
         charset: "UTF-8",
-        theme: terminalThemeId,
-        fontSize: terminalFontSize,
+        distroMode: "auto",
         createdAt: Date.now(),
         group: defaultGroup || undefined, // Pre-fill with current navigation group
       } as Host),
@@ -136,6 +153,9 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
   // Password visibility state
   const [showPassword, setShowPassword] = useState(false);
 
+  // Local key file path input state
+  const [newKeyFilePath, setNewKeyFilePath] = useState("");
+
   // New group creation state
   const [newGroupName, setNewGroupName] = useState("");
   const [newGroupParent, setNewGroupParent] = useState("");
@@ -179,6 +199,56 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
     setForm((prev) => ({ ...prev, [key]: value }));
   };
 
+  const effectiveThemeId = useMemo(
+    () => resolveHostTerminalThemeId(form, terminalThemeId),
+    [form, terminalThemeId],
+  );
+  const effectiveFontSize = useMemo(
+    () => resolveHostTerminalFontSize(form, terminalFontSize),
+    [form, terminalFontSize],
+  );
+  const hasEffectiveThemeOverride = useMemo(
+    () => hasHostThemeOverride(form),
+    [form],
+  );
+  const hasEffectiveFontSizeOverride = useMemo(
+    () => hasHostFontSizeOverride(form),
+    [form],
+  );
+  const effectiveTelnetThemeId =
+    form.protocols?.find((p) => p.protocol === "telnet")?.theme || effectiveThemeId;
+  const distroOptions = useMemo(
+    () =>
+      LINUX_DISTRO_OPTION_IDS.map((value) => ({
+        value,
+        label: t(`hostDetails.distro.option.${value}`),
+        icon: DISTRO_LOGOS[value],
+        bgClass: DISTRO_COLORS[value] || DISTRO_COLORS.default,
+      })),
+    [t],
+  );
+
+  const getDistroOptionLabel = useCallback(
+    (value?: string) =>
+      distroOptions.find((option) => option.value === value)?.label ||
+      value ||
+      t("hostDetails.distro.pending"),
+    [distroOptions, t],
+  );
+
+  const effectiveFormDistro = getEffectiveHostDistro(form);
+
+  const handleDistroModeChange = useCallback((mode: "auto" | "manual") => {
+    setForm((prev) => ({
+      ...prev,
+      distroMode: mode,
+      manualDistro:
+        mode === "manual"
+          ? prev.manualDistro || getEffectiveHostDistro(prev) || "linux"
+          : prev.manualDistro,
+    }));
+  }, []);
+
   const updateProxyConfig = useCallback(
     (field: keyof ProxyConfig, value: string | number) => {
       setForm((prev) => ({
@@ -298,6 +368,27 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
       password: form.savePassword === false ? undefined : form.password,
       managedSourceId: finalManagedSourceId,
     };
+    const preserveLegacyTheme = initialData?.theme != null && cleaned.themeOverride !== false;
+    const preserveLegacyFontFamily = initialData?.fontFamily != null && cleaned.fontFamilyOverride !== false;
+    const preserveLegacyFontSize = initialData?.fontSize != null && cleaned.fontSizeOverride !== false;
+
+    if (cleaned.themeOverride === false) {
+      delete cleaned.theme;
+    } else if (preserveLegacyTheme && cleaned.theme == null) {
+      cleaned.theme = initialData?.theme;
+    }
+
+    if (cleaned.fontFamilyOverride === false) {
+      delete cleaned.fontFamily;
+    } else if (preserveLegacyFontFamily && cleaned.fontFamily == null) {
+      cleaned.fontFamily = initialData?.fontFamily;
+    }
+
+    if (cleaned.fontSizeOverride === false) {
+      delete cleaned.fontSize;
+    } else if (preserveLegacyFontSize && cleaned.fontSize == null) {
+      cleaned.fontSize = initialData?.fontSize;
+    }
     onSave(cleaned);
   };
 
@@ -387,6 +478,7 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
         authMethod: identity.authMethod,
         password: undefined,
         identityFileId: undefined,
+        identityFilePaths: undefined,
       }));
       setSelectedCredentialType(null);
       setCredentialPopoverOpen(false);
@@ -478,9 +570,9 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
     return (
       <ThemeSelectPanel
         open={true}
-        selectedThemeId={form.theme || "flexoki-dark"}
+        selectedThemeId={effectiveThemeId}
         onSelect={(themeId) => {
-          update("theme", themeId);
+          setForm((prev) => ({ ...prev, theme: themeId, themeOverride: true }));
           setActiveSubPanel("none");
         }}
         onClose={onCancel}
@@ -495,11 +587,7 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
     return (
       <ThemeSelectPanel
         open={true}
-        selectedThemeId={
-          form.protocols?.find((p) => p.protocol === "telnet")?.theme ||
-          form.theme ||
-          "flexoki-dark"
-        }
+        selectedThemeId={effectiveTelnetThemeId}
         onSelect={(themeId) => {
           // Update telnet protocol theme
           const telnetConfig = form.protocols?.find(
@@ -537,6 +625,7 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
     <AsidePanel
       open={true}
       onClose={onCancel}
+      width="w-[420px]"
       title={
         initialData ? t("hostDetails.title.details") : t("hostDetails.title.new")
       }
@@ -650,7 +739,7 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
           </div>
         </Card>
 
-        <Card className="p-3 space-y-3 bg-card border-border/80">
+        <Card className="p-3 space-y-3 bg-card border-border/80 overflow-hidden">
           <div className="flex items-center gap-2">
             <KeyRound size={14} className="text-muted-foreground" />
             <p className="text-xs font-semibold">
@@ -891,6 +980,31 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
               </div>
             )}
 
+            {/* Local key file paths display */}
+            {!selectedIdentity && !form.identityFileId && form.identityFilePaths && form.identityFilePaths.length > 0 && (
+              <div className="space-y-1.5">
+                {form.identityFilePaths.map((keyPath, idx) => (
+                  <div key={idx} className="flex items-center gap-2 p-2 rounded-md bg-secondary/50 border border-border/60 overflow-hidden">
+                    <FileKey size={14} className="text-primary shrink-0" />
+                    <span className="text-xs w-0 flex-1 truncate font-mono" title={keyPath}>
+                      {keyPath}
+                    </span>
+                    <Button
+                      variant="ghost"
+                      size="icon"
+                      className="h-6 w-6 shrink-0"
+                      onClick={() => {
+                        const paths = form.identityFilePaths?.filter((_, i) => i !== idx) || [];
+                        update("identityFilePaths", paths.length > 0 ? paths : undefined);
+                      }}
+                    >
+                      <Trash2 size={12} />
+                    </Button>
+                  </div>
+                ))}
+              </div>
+            )}
+
             {/* Selected credential display */}
             {!selectedIdentity && form.identityFileId && (
               <div className="flex items-center gap-2 p-2 rounded-md bg-secondary/50 border border-border/60">
@@ -968,6 +1082,20 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
                           {t("hostDetails.credential.certificate")}
                         </span>
                       </button>
+
+                      <button
+                        type="button"
+                        className="w-full flex items-center gap-3 px-3 py-2.5 rounded-md hover:bg-secondary/80 transition-colors text-left"
+                        onClick={() => {
+                          setSelectedCredentialType("localKeyFile");
+                          setCredentialPopoverOpen(false);
+                        }}
+                      >
+                        <FileKey size={16} className="text-muted-foreground" />
+                        <span className="text-sm font-medium">
+                          {t("hostDetails.credential.localKeyFile")}
+                        </span>
+                      </button>
                     </div>
                   </PopoverContent>
                 </Popover>
@@ -989,6 +1117,7 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
                     onValueChange={(val) => {
                       update("identityFileId", val);
                       update("authMethod", "key");
+                      update("identityFilePaths", undefined);
                       setSelectedCredentialType(null);
                     }}
                     placeholder={t("hostDetails.keys.search")}
@@ -1024,6 +1153,7 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
                     onValueChange={(val) => {
                       update("identityFileId", val);
                       update("authMethod", "certificate");
+                      update("identityFilePaths", undefined);
                       setSelectedCredentialType(null);
                     }}
                     placeholder={t("hostDetails.certs.search")}
@@ -1043,6 +1173,67 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
                   </Button>
                 </div>
               )}
+
+            {/* Local key file path input - appears after selecting "Local Key File" type */}
+            {!selectedIdentity &&
+              selectedCredentialType === "localKeyFile" &&
+              !form.identityFileId && (
+                <div className="space-y-1.5">
+                  <div className="flex items-center gap-1 min-w-0">
+                    <input
+                      type="text"
+                      className="flex-1 min-w-0 h-8 px-2 text-xs font-mono bg-background border border-border/60 rounded-md focus:outline-none focus:ring-1 focus:ring-ring"
+                      placeholder={t("hostDetails.credential.localKeyFilePlaceholder")}
+                      value={newKeyFilePath}
+                      onChange={(e) => setNewKeyFilePath(e.target.value)}
+                      onKeyDown={(e) => {
+                        if (e.key === "Enter" && newKeyFilePath.trim()) {
+                          e.preventDefault();
+                          const paths = [...(form.identityFilePaths || []), newKeyFilePath.trim()];
+                          update("identityFilePaths", paths);
+                          update("identityFileId", undefined);
+                          update("authMethod", "key");
+                          setNewKeyFilePath("");
+                        }
+                      }}
+                    />
+                    <Button
+                      variant="secondary"
+                      size="icon"
+                      className="h-8 w-8 shrink-0"
+                      title={t("hostDetails.credential.browseKeyFile")}
+                      onClick={async () => {
+                        const bridge = (window as unknown as { netcatty?: NetcattyBridge }).netcatty;
+                        if (!bridge?.selectFile) return;
+                        const filePath = await bridge.selectFile(
+                          "Select SSH Private Key",
+                          undefined,
+                          [{ name: "All Files", extensions: ["*"] }]
+                        );
+                        if (filePath) {
+                          const paths = [...(form.identityFilePaths || []), filePath];
+                          update("identityFilePaths", paths);
+                          update("identityFileId", undefined);
+                          update("authMethod", "key");
+                        }
+                      }}
+                    >
+                      <FolderOpen size={14} />
+                    </Button>
+                    <Button
+                      variant="ghost"
+                      size="icon"
+                      className="h-8 w-8 shrink-0"
+                      onClick={() => {
+                        setSelectedCredentialType(null);
+                        setNewKeyFilePath("");
+                      }}
+                    >
+                      <X size={14} />
+                    </Button>
+                  </div>
+                </div>
+              )}
           </div>
         </Card>
 
@@ -1072,18 +1263,20 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
               {t("hostDetails.sftp.sudo.passwordWarning")}
             </p>
           )}
-          <div className="space-y-1">
-            <div className="text-sm font-medium">
-              {t("hostDetails.sftp.encoding")}
-            </div>
-            <div className="text-xs text-muted-foreground">
-              {t("hostDetails.sftp.encoding.desc")}
+          <div className="flex items-center justify-between gap-4">
+            <div className="space-y-0.5">
+              <div className="text-sm font-medium">
+                {t("hostDetails.sftp.encoding")}
+              </div>
+              <div className="text-xs text-muted-foreground">
+                {t("hostDetails.sftp.encoding.desc")}
+              </div>
             </div>
             <Select
               value={form.sftpEncoding || "auto"}
               onValueChange={(val) => update("sftpEncoding", val as Host["sftpEncoding"])}
             >
-              <SelectTrigger className="h-8">
+              <SelectTrigger className="h-8 w-28">
                 <SelectValue placeholder={t("sftp.encoding.label")} />
               </SelectTrigger>
               <SelectContent>
@@ -1095,6 +1288,111 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
           </div>
         </Card>
 
+        {form.os === "linux" && (
+          <Card className="p-3 space-y-3 bg-card border-border/80">
+            <div className="flex items-center gap-2">
+              <img src="/distro/linux.svg" alt="Linux" className="h-3.5 w-3.5 opacity-70 dark:invert" />
+              <p className="text-xs font-semibold">{t("hostDetails.distro.title")}</p>
+            </div>
+            <p className="text-xs text-muted-foreground">{t("hostDetails.distro.desc")}</p>
+
+            <div className="grid gap-2 md:grid-cols-2">
+              <div className="space-y-1">
+                <span className="text-xs text-muted-foreground">{t("hostDetails.distro.mode")}</span>
+                <Select
+                  value={form.distroMode || "auto"}
+                  onValueChange={(val) => handleDistroModeChange(val as "auto" | "manual")}
+                >
+                  <SelectTrigger className="h-8" aria-label={t("hostDetails.distro.mode")}>
+                    <span className="truncate whitespace-nowrap pr-2 text-left">
+                      {form.distroMode === "manual"
+                        ? t("hostDetails.distro.mode.manual")
+                        : t("hostDetails.distro.mode.auto")}
+                    </span>
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="auto">{t("hostDetails.distro.mode.auto")}</SelectItem>
+                    <SelectItem value="manual">{t("hostDetails.distro.mode.manual")}</SelectItem>
+                  </SelectContent>
+                </Select>
+              </div>
+
+              {form.distroMode === "manual" ? (
+                <div className="space-y-1">
+                  <span className="text-xs text-muted-foreground">{t("hostDetails.distro.manualLabel")}</span>
+                  <Select
+                    value={form.manualDistro}
+                    onValueChange={(val) => update("manualDistro", val)}
+                  >
+                    <SelectTrigger className="h-8" aria-label={t("hostDetails.distro.manualLabel")}>
+                      {(() => {
+                        const selectedOption = distroOptions.find((option) => option.value === form.manualDistro);
+                        return selectedOption ? (
+                          <div className="flex min-w-0 items-center gap-2 pr-2">
+                            <div
+                              className={cn(
+                                "flex h-4 w-4 shrink-0 items-center justify-center overflow-hidden rounded-[2px]",
+                                selectedOption.bgClass,
+                              )}
+                            >
+                              {selectedOption.icon ? (
+                                <img
+                                  src={selectedOption.icon}
+                                  alt={selectedOption.label}
+                                  className="h-3 w-3 object-contain invert brightness-0"
+                                />
+                              ) : (
+                                <div className="h-2 w-2 rounded-full bg-white/70" />
+                              )}
+                            </div>
+                            <span className="truncate whitespace-nowrap">{selectedOption.label}</span>
+                          </div>
+                        ) : (
+                          <SelectValue placeholder={t("hostDetails.distro.unknown")} />
+                        );
+                      })()}
+                    </SelectTrigger>
+                    <SelectContent className="min-w-[14rem]">
+                      {distroOptions.map((option) => (
+                        <SelectItem key={option.value} value={option.value}>
+                          <div className="flex items-center gap-2">
+                            <div
+                              className={cn(
+                                "flex h-4 w-4 shrink-0 items-center justify-center overflow-hidden rounded-[2px]",
+                                option.bgClass,
+                              )}
+                            >
+                              {option.icon ? (
+                                <img
+                                  src={option.icon}
+                                  alt={option.label}
+                                  className="h-3 w-3 object-contain invert brightness-0"
+                                />
+                              ) : (
+                                <div className="h-2 w-2 rounded-full bg-white/70" />
+                              )}
+                            </div>
+                            <span className="whitespace-nowrap">{option.label}</span>
+                          </div>
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+              ) : (
+                <div className="space-y-1">
+                  <span className="text-xs text-muted-foreground">{t("hostDetails.distro.detectedLabel")}</span>
+                  <div className="flex h-8 items-center rounded-md border border-border/60 bg-background/50 px-3 text-sm">
+                    {effectiveFormDistro
+                      ? getDistroOptionLabel(effectiveFormDistro)
+                      : t("hostDetails.distro.unknown")}
+                  </div>
+                </div>
+              )}
+            </div>
+          </Card>
+        )}
+
         <Card className="p-3 space-y-3 bg-card border-border/80">
           <div className="flex items-center gap-2">
             <Palette size={14} className="text-muted-foreground" />
@@ -1113,15 +1411,15 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
               className="w-12 h-8 rounded-md border border-border/60 flex items-center justify-center text-[6px] font-mono overflow-hidden"
               style={{
                 backgroundColor:
-                  customThemeStore.getThemeById(form.theme || "flexoki-dark")?.colors.background || "#100F0F",
+                  customThemeStore.getThemeById(effectiveThemeId)?.colors.background || "#100F0F",
                 color:
-                  customThemeStore.getThemeById(form.theme || "flexoki-dark")?.colors.foreground || "#CECDC3",
+                  customThemeStore.getThemeById(effectiveThemeId)?.colors.foreground || "#CECDC3",
               }}
             >
               <div className="p-0.5">
                 <div
                   style={{
-                    color: customThemeStore.getThemeById(form.theme || "flexoki-dark")?.colors.green,
+                    color: customThemeStore.getThemeById(effectiveThemeId)?.colors.green,
                   }}
                 >
                   $
@@ -1129,9 +1427,19 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
               </div>
             </div>
             <span className="text-sm flex-1">
-              {customThemeStore.getThemeById(form.theme || "flexoki-dark")?.name || "Flexoki Dark"}
+              {customThemeStore.getThemeById(effectiveThemeId)?.name || "Flexoki Dark"}
             </span>
           </button>
+          {hasEffectiveThemeOverride && (
+            <Button
+              variant="ghost"
+              size="sm"
+              className="w-full justify-start text-primary"
+              onClick={() => setForm((prev) => clearHostThemeOverride(prev))}
+            >
+              {t("common.useGlobal")}
+            </Button>
+          )}
 
           {/* Font Size */}
           <div className="flex items-center gap-2">
@@ -1140,11 +1448,15 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
               variant="outline"
               size="sm"
               onClick={() => {
-                if ((form.fontSize || 14) > MIN_FONT_SIZE) {
-                  update("fontSize", (form.fontSize || 14) - 1);
+                if (effectiveFontSize > MIN_FONT_SIZE) {
+                  setForm((prev) => ({
+                    ...prev,
+                    fontSize: effectiveFontSize - 1,
+                    fontSizeOverride: true,
+                  }));
                 }
               }}
-              disabled={(form.fontSize || 14) <= MIN_FONT_SIZE}
+              disabled={effectiveFontSize <= MIN_FONT_SIZE}
               className="px-2 h-8"
             >
               -
@@ -1153,25 +1465,43 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
               type="number"
               min={MIN_FONT_SIZE}
               max={MAX_FONT_SIZE}
-              value={form.fontSize || 14}
+              value={effectiveFontSize}
               onChange={(e) => {
                 const val = parseInt(e.target.value);
                 if (val >= MIN_FONT_SIZE && val <= MAX_FONT_SIZE) {
-                  update("fontSize", val);
+                  setForm((prev) => ({
+                    ...prev,
+                    fontSize: val,
+                    fontSizeOverride: true,
+                  }));
                 }
               }}
               className="w-16 text-center h-8"
             />
             <span className="text-sm text-muted-foreground">pt</span>
+            {hasEffectiveFontSizeOverride && (
+              <Button
+                variant="ghost"
+                size="sm"
+                className="ml-auto h-8 text-primary"
+                onClick={() => setForm((prev) => clearHostFontSizeOverride(prev))}
+              >
+                {t("common.useGlobal")}
+              </Button>
+            )}
             <Button
               variant="outline"
               size="sm"
               onClick={() => {
-                if ((form.fontSize || 14) < MAX_FONT_SIZE) {
-                  update("fontSize", (form.fontSize || 14) + 1);
+                if (effectiveFontSize < MAX_FONT_SIZE) {
+                  setForm((prev) => ({
+                    ...prev,
+                    fontSize: effectiveFontSize + 1,
+                    fontSizeOverride: true,
+                  }));
                 }
               }}
-              disabled={(form.fontSize || 14) >= MAX_FONT_SIZE}
+              disabled={effectiveFontSize >= MAX_FONT_SIZE}
               className="px-2 h-8"
             >
               +
@@ -1187,7 +1517,15 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
           <ToggleRow
             label="Mosh"
             enabled={!!form.moshEnabled}
-            onToggle={() => update("moshEnabled", !form.moshEnabled)}
+            onToggle={() => {
+              const enabling = !form.moshEnabled;
+              if (enabling && form.deviceType === 'network') {
+                // Network device mode is incompatible with Mosh — clear it
+                setForm(prev => ({ ...prev, moshEnabled: true, deviceType: undefined }));
+              } else {
+                update("moshEnabled", enabling);
+              }
+            }}
           />
         </Card>
 
@@ -1220,6 +1558,32 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
           )}
         </Card>
 
+        {/* Network Device Mode — only for SSH hosts without Mosh (serial already uses raw mode) */}
+        {(!form.protocol || form.protocol === 'ssh') && !form.moshEnabled && (
+        <Card className="p-3 space-y-2 bg-card border-border/80">
+          <div className="flex items-center gap-2">
+            <Router size={14} className="text-muted-foreground" />
+            <p className="text-xs font-semibold">{t("hostDetails.section.deviceType")}</p>
+          </div>
+          <ToggleRow
+            label={t("hostDetails.deviceType")}
+            enabled={form.deviceType === 'network'}
+            onToggle={() => update("deviceType", form.deviceType === 'network' ? undefined : 'network')}
+          />
+          <p className="text-xs text-muted-foreground break-words">
+            {t("hostDetails.deviceType.desc")}
+          </p>
+          {form.deviceType === 'network' && (
+            <div className="flex items-start gap-2 p-2 rounded-md bg-yellow-500/10 border border-yellow-500/20">
+              <AlertTriangle size={14} className="text-yellow-500 mt-0.5 flex-shrink-0" />
+              <p className="text-xs text-yellow-600 dark:text-yellow-400 break-words">
+                {t("hostDetails.deviceType.warning")}
+              </p>
+            </div>
+          )}
+        </Card>
+        )}
+
         {/* Legacy Algorithms */}
         <Card className="p-3 space-y-2 bg-card border-border/80">
           <div className="flex items-center gap-2">
@@ -1494,21 +1858,15 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
                 className="w-12 h-8 rounded-md border border-border/60 flex items-center justify-center text-[6px] font-mono overflow-hidden"
                 style={{
                   backgroundColor:
-                    customThemeStore.getThemeById(
-                      form.protocols?.find((p) => p.protocol === "telnet")?.theme || form.theme || "flexoki-dark"
-                    )?.colors.background || "#100F0F",
+                    customThemeStore.getThemeById(effectiveTelnetThemeId)?.colors.background || "#100F0F",
                   color:
-                    customThemeStore.getThemeById(
-                      form.protocols?.find((p) => p.protocol === "telnet")?.theme || form.theme || "flexoki-dark"
-                    )?.colors.foreground || "#CECDC3",
+                    customThemeStore.getThemeById(effectiveTelnetThemeId)?.colors.foreground || "#CECDC3",
                 }}
               >
                 <div className="p-0.5">
                   <div
                     style={{
-                      color: customThemeStore.getThemeById(
-                        form.protocols?.find((p) => p.protocol === "telnet")?.theme || form.theme || "flexoki-dark"
-                      )?.colors.green,
+                      color: customThemeStore.getThemeById(effectiveTelnetThemeId)?.colors.green,
                     }}
                   >
                     $
@@ -1516,9 +1874,7 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
                 </div>
               </div>
               <span className="text-sm flex-1">
-                {customThemeStore.getThemeById(
-                  form.protocols?.find((p) => p.protocol === "telnet")?.theme || form.theme || "flexoki-dark"
-                )?.name || "Flexoki Dark"}
+                {customThemeStore.getThemeById(effectiveTelnetThemeId)?.name || "Flexoki Dark"}
               </span>
             </button>
           </Card>

components/PortForwardingNew.tsx

@@ -130,7 +130,9 @@ const PortForwarding: React.FC<PortForwardingProps> = ({
         const result = await startTunnel(
           rule,
           _host,
-          keys.map((k) => ({ id: k.id, privateKey: k.privateKey, passphrase: k.passphrase })),
+          hosts,
+          keys,
+          identities,
           (status, error) => {
             // Show toast on error (only once)
             if (status === "error" && error && !errorShown) {
@@ -159,7 +161,7 @@ const PortForwarding: React.FC<PortForwardingProps> = ({
         });
       }
     },
-    [hosts, keys, setRuleStatus, startTunnel, t],
+    [hosts, identities, keys, setRuleStatus, startTunnel, t],
   );
 
   // Stop a port forwarding tunnel

components/QuickConnectWizard.tsx

@@ -13,6 +13,7 @@ import {
 import React, { useMemo, useState } from "react";
 import { useI18n } from "../application/i18n/I18nProvider";
 import type { QuickConnectTarget } from "../domain/quickConnect";
+import { formatHostPort } from "../domain/host";
 import { cn } from "../lib/utils";
 import { Host, SSHKey } from "../types";
 import { Button } from "./ui/button";
@@ -531,11 +532,11 @@ const QuickConnectWizard: React.FC<QuickConnectWizardProps> = ({
       case "protocol":
         return target.hostname;
       case "username":
-        return `${protocol.toUpperCase()} ${target.hostname}:${port}`;
+        return `${protocol.toUpperCase()} ${formatHostPort(target.hostname, port)}`;
       case "knownhost":
-        return `${protocol.toUpperCase()} ${effectiveUsername}@${target.hostname}:${port}`;
+        return `${protocol.toUpperCase()} ${effectiveUsername}@${formatHostPort(target.hostname, port)}`;
       case "auth":
-        return `${protocol.toUpperCase()} ${target.hostname}:${port}`;
+        return `${protocol.toUpperCase()} ${formatHostPort(target.hostname, port)}`;
     }
   };
 

components/QuickSwitcher.tsx

@@ -2,7 +2,7 @@ import {
   Folder,
   LayoutGrid,
   Search,
-  Shield,
+  FolderLock,
   Terminal,
   TerminalSquare,
 } from "lucide-react";
@@ -98,13 +98,17 @@ const QuickSwitcherInner: React.FC<QuickSwitcherProps> = ({
 
   // Reset state when opening
   useEffect(() => {
-    if (isOpen) {
-      setSelectedIndex(0);
-      // Auto focus the input after a short delay
-      setTimeout(() => {
-        inputRef.current?.focus();
-      }, 50);
-    }
+    if (!isOpen) return;
+
+    const focusTimer = window.setTimeout(() => {
+      inputRef.current?.focus();
+    }, 50);
+
+    setSelectedIndex(0);
+
+    return () => {
+      window.clearTimeout(focusTimer);
+    };
   }, [isOpen]);
 
   // Handle clicks outside the container
@@ -287,7 +291,7 @@ const QuickSwitcherInner: React.FC<QuickSwitcherProps> = ({
                 const isSelected = idx === selectedIndex;
                 const icon =
                   tabId === "vault" ? (
-                    <Shield size={16} />
+                    <FolderLock size={16} />
                   ) : (
                     <Folder size={16} />
                   );

components/SFTPModal.tsx

@@ -1,817 +0,0 @@
-import React, { useCallback, useEffect, useMemo, useRef, useState } from "react";
-import { useI18n } from "../application/i18n/I18nProvider";
-import { useSftpBackend } from "../application/state/useSftpBackend";
-import { useSftpFileAssociations } from "../application/state/useSftpFileAssociations";
-import { useSettingsState } from "../application/state/useSettingsState";
-import { useSftpModalTransfers } from "./sftp-modal/hooks/useSftpModalTransfers";
-import { Host, RemoteFile, SftpFilenameEncoding } from "../types";
-import { filterHiddenFiles } from "./sftp";
-import { DropEntry } from "../lib/sftpFileUtils";
-import FileOpenerDialog from "./FileOpenerDialog";
-import TextEditorModal from "./TextEditorModal";
-import { SftpModalFileList } from "./sftp-modal/SftpModalFileList";
-import { SftpModalDialogs } from "./sftp-modal/SftpModalDialogs";
-import { SftpModalFooter } from "./sftp-modal/SftpModalFooter";
-import { SftpModalHeader } from "./sftp-modal/SftpModalHeader";
-import { SftpModalUploadTasks } from "./sftp-modal/SftpModalUploadTasks";
-import { formatBytes, formatDate } from "./sftp-modal/utils";
-import { useSftpModalSorting } from "./sftp-modal/hooks/useSftpModalSorting";
-import { useSftpModalVirtualList } from "./sftp-modal/hooks/useSftpModalVirtualList";
-import { useSftpModalPath } from "./sftp-modal/hooks/useSftpModalPath";
-import { useSftpModalSelection } from "./sftp-modal/hooks/useSftpModalSelection";
-import { useSftpModalSession } from "./sftp-modal/hooks/useSftpModalSession";
-import { useSftpModalFileActions } from "./sftp-modal/hooks/useSftpModalFileActions";
-import { useSftpModalKeyboardShortcuts } from "./sftp-modal/hooks/useSftpModalKeyboardShortcuts";
-import { joinPath, isRootPath, getParentPath } from "./sftp-modal/pathUtils";
-import { toast } from "./ui/toast";
-
-interface SFTPModalProps {
-  host: Host;
-  credentials: {
-    username?: string;
-    hostname: string;
-    port?: number;
-    password?: string;
-    privateKey?: string;
-    certificate?: string;
-    passphrase?: string;
-    publicKey?: string;
-    keyId?: string;
-    keySource?: 'generated' | 'imported';
-    proxy?: NetcattyProxyConfig;
-    jumpHosts?: NetcattyJumpHost[];
-    sftpSudo?: boolean;
-    legacyAlgorithms?: boolean;
-  };
-  open: boolean;
-  onClose: () => void;
-  /** Initial path to open in SFTP. If not accessible, falls back to home directory. */
-  initialPath?: string;
-  /** Initial entries to upload when SFTP modal opens. Used for drag-and-drop to terminal. */
-  initialEntriesToUpload?: DropEntry[];
-  /** Callback to update the host (e.g. for bookmark persistence). */
-  onUpdateHost?: (host: Host) => void;
-}
-
-const SFTPModal: React.FC<SFTPModalProps> = ({
-  host,
-  credentials,
-  open,
-  onClose,
-  initialPath,
-  initialEntriesToUpload,
-  onUpdateHost,
-}) => {
-  const {
-    openSftp,
-    closeSftp: closeSftpBackend,
-    listSftp,
-    readSftp,
-    writeSftpBinaryWithProgress,
-    writeSftpBinary,
-    writeSftp,
-    deleteSftp,
-    mkdirSftp,
-    renameSftp,
-    chmodSftp,
-    statSftp,
-    listLocalDir,
-    readLocalFile,
-    writeLocalFile,
-    deleteLocalFile,
-    mkdirLocal,
-    getHomeDir,
-    selectApplication,
-    downloadSftpToTempAndOpen,
-    cancelSftpUpload,
-    startStreamTransfer,
-    cancelTransfer,
-    showSaveDialog,
-  } = useSftpBackend();
-  const { t } = useI18n();
-  const {
-    sftpAutoSync,
-    sftpShowHiddenFiles,
-    setSftpShowHiddenFiles,
-    sftpUseCompressedUpload,
-    hotkeyScheme,
-    keyBindings,
-    editorWordWrap,
-    setEditorWordWrap,
-  } = useSettingsState();
-  const isLocalSession = host.protocol === "local";
-  const [filenameEncoding, setFilenameEncoding] = useState<SftpFilenameEncoding>(
-    host.sftpEncoding ?? "auto"
-  );
-  const [selectedFiles, setSelectedFiles] = useState<Set<string>>(new Set());
-  const inputRef = useRef<HTMLInputElement>(null);
-  const folderInputRef = useRef<HTMLInputElement>(null);
-  const navigatingRef = useRef(false);
-  const clearSelection = useCallback(() => setSelectedFiles(new Set()), []);
-
-  // Update filenameEncoding when host changes
-  useEffect(() => {
-    setFilenameEncoding(host.sftpEncoding ?? "auto");
-  }, [host.id, host.sftpEncoding]);
-
-  const listSftpWithEncoding = useCallback(
-    (sftpId: string, path: string) => listSftp(sftpId, path, filenameEncoding),
-    [listSftp, filenameEncoding],
-  );
-
-  const readSftpWithEncoding = useCallback(
-    (sftpId: string, path: string) => readSftp(sftpId, path, filenameEncoding),
-    [readSftp, filenameEncoding],
-  );
-
-  const writeSftpWithEncoding = useCallback(
-    (sftpId: string, path: string, data: string) =>
-      writeSftp(sftpId, path, data, filenameEncoding),
-    [writeSftp, filenameEncoding],
-  );
-
-  const writeSftpBinaryWithEncoding = useCallback(
-    (sftpId: string, path: string, data: ArrayBuffer) =>
-      writeSftpBinary(sftpId, path, data, filenameEncoding),
-    [writeSftpBinary, filenameEncoding],
-  );
-
-  const writeSftpBinaryWithProgressWithEncoding = useCallback(
-    (
-      sftpId: string,
-      path: string,
-      data: ArrayBuffer,
-      transferId: string,
-      onProgress?: (transferred: number, total: number, speed: number) => void,
-      onComplete?: () => void,
-      onError?: (error: string) => void,
-    ) =>
-      writeSftpBinaryWithProgress(
-        sftpId,
-        path,
-        data,
-        transferId,
-        filenameEncoding,
-        onProgress,
-        onComplete,
-        onError,
-      ),
-    [writeSftpBinaryWithProgress, filenameEncoding],
-  );
-
-  const deleteSftpWithEncoding = useCallback(
-    (sftpId: string, path: string) => deleteSftp(sftpId, path, filenameEncoding),
-    [deleteSftp, filenameEncoding],
-  );
-
-  const mkdirSftpWithEncoding = useCallback(
-    (sftpId: string, path: string) => mkdirSftp(sftpId, path, filenameEncoding),
-    [mkdirSftp, filenameEncoding],
-  );
-
-  const renameSftpWithEncoding = useCallback(
-    (sftpId: string, oldPath: string, newPath: string) =>
-      renameSftp(sftpId, oldPath, newPath, filenameEncoding),
-    [renameSftp, filenameEncoding],
-  );
-
-  const chmodSftpWithEncoding = useCallback(
-    (sftpId: string, path: string, mode: string) =>
-      chmodSftp(sftpId, path, mode, filenameEncoding),
-    [chmodSftp, filenameEncoding],
-  );
-
-  const statSftpWithEncoding = useCallback(
-    (sftpId: string, path: string) => statSftp(sftpId, path, filenameEncoding),
-    [statSftp, filenameEncoding],
-  );
-
-  const downloadSftpToTempAndOpenWithEncoding = useCallback(
-    (
-      sftpId: string,
-      remotePath: string,
-      fileName: string,
-      appPath: string,
-      options?: { enableWatch?: boolean },
-    ) =>
-      downloadSftpToTempAndOpen(sftpId, remotePath, fileName, appPath, {
-        ...options,
-        encoding: filenameEncoding,
-      }),
-    [downloadSftpToTempAndOpen, filenameEncoding],
-  );
-
-  const {
-    currentPath,
-    setCurrentPath,
-    currentPathRef,
-    files,
-    loading,
-    setLoading,
-    reconnecting,
-    sessionVersion,
-    ensureSftp,
-    loadFiles,
-    closeSftpSession,
-    localHomeRef,
-  } = useSftpModalSession({
-    open,
-    host,
-    credentials,
-    initialPath,
-    isLocalSession,
-    t,
-    openSftp,
-    closeSftp: closeSftpBackend,
-    listSftp: listSftpWithEncoding,
-    listLocalDir,
-    getHomeDir,
-    onClearSelection: clearSelection,
-  });
-
-  // Track previous encoding to detect changes
-  const prevEncodingRef = useRef(filenameEncoding);
-
-  // Force reload only when filenameEncoding changes (not on every path change)
-  useEffect(() => {
-    if (!open || isLocalSession) return;
-    // Only force reload if encoding actually changed
-    if (prevEncodingRef.current !== filenameEncoding) {
-      prevEncodingRef.current = filenameEncoding;
-      loadFiles(currentPath, { force: true });
-    }
-  }, [currentPath, filenameEncoding, isLocalSession, loadFiles, open]);
-
-  const { getOpenerForFile, setOpenerForExtension } = useSftpFileAssociations();
-
-  const { sortField, sortOrder, columnWidths, handleSort, handleResizeStart } =
-    useSftpModalSorting();
-
-  const joinPathForSession = useCallback(
-    (base: string, name: string) => joinPath(base, name, isLocalSession),
-    [isLocalSession],
-  );
-  const isRootPathForSession = useCallback(
-    (path: string) => isRootPath(path, isLocalSession),
-    [isLocalSession],
-  );
-  const getParentPathForSession = useCallback(
-    (path: string) => getParentPath(path, isLocalSession),
-    [isLocalSession],
-  );
-
-  const handleNavigate = useCallback((path: string) => {
-    // Prevent double navigation (e.g., from double-click race condition)
-    if (navigatingRef.current) return;
-    navigatingRef.current = true;
-    setCurrentPath(path);
-    // Reset lock after a short delay
-    setTimeout(() => {
-      navigatingRef.current = false;
-    }, 300);
-  }, [navigatingRef, setCurrentPath]);
-
-  const handleUp = () => {
-    if (isRootPathForSession(currentPath)) return;
-    setCurrentPath(getParentPathForSession(currentPath));
-  };
-
-  const {
-    isEditingPath,
-    editingPathValue,
-    setEditingPathValue,
-    pathInputRef,
-    handlePathDoubleClick,
-    handlePathSubmit,
-    handlePathKeyDown,
-    breadcrumbs,
-    visibleBreadcrumbs,
-    hiddenBreadcrumbs,
-    needsBreadcrumbTruncation,
-    breadcrumbPathAtForIndex,
-    rootLabel,
-    rootPath,
-  } = useSftpModalPath({
-    currentPath,
-    isLocalSession,
-    localHomePath: localHomeRef.current,
-    onNavigate: handleNavigate,
-  });
-
-  const {
-    handleDelete,
-    handleCreateFolder,
-    handleCreateFile,
-    showCreateDialog,
-    setShowCreateDialog,
-    createType,
-    createName,
-    setCreateName,
-    isCreating,
-    handleCreateSubmit,
-    showRenameDialog,
-    setShowRenameDialog,
-    renameTarget,
-    renameName,
-    setRenameName,
-    isRenaming,
-    openRenameDialog,
-    handleRename,
-    showPermissionsDialog,
-    setShowPermissionsDialog,
-    permissionsTarget,
-    permissions,
-    isChangingPermissions,
-    openPermissionsDialog,
-    togglePermission,
-    getOctalPermissions,
-    getSymbolicPermissions,
-    handleSavePermissions,
-    showFileOpenerDialog,
-    setShowFileOpenerDialog,
-    fileOpenerTarget,
-    setFileOpenerTarget,
-    openFileOpenerDialog,
-    handleFileOpenerSelect,
-    handleSelectSystemApp,
-    showTextEditor,
-    setShowTextEditor,
-    textEditorTarget,
-    setTextEditorTarget,
-    textEditorContent,
-    setTextEditorContent,
-    loadingTextContent,
-    handleEditFile,
-    handleSaveTextFile,
-    handleOpenFile,
-  } = useSftpModalFileActions({
-    currentPath,
-    isLocalSession,
-    joinPath: joinPathForSession,
-    ensureSftp,
-    loadFiles,
-    readLocalFile,
-    readSftp: readSftpWithEncoding,
-    writeLocalFile,
-    writeSftp: writeSftpWithEncoding,
-    writeSftpBinary: writeSftpBinaryWithEncoding,
-    deleteLocalFile,
-    deleteSftp: deleteSftpWithEncoding,
-    mkdirLocal,
-    mkdirSftp: mkdirSftpWithEncoding,
-    renameSftp: renameSftpWithEncoding,
-    chmodSftp: chmodSftpWithEncoding,
-    statSftp: statSftpWithEncoding,
-    t,
-    sftpAutoSync,
-    getOpenerForFile,
-    setOpenerForExtension,
-    downloadSftpToTempAndOpen: downloadSftpToTempAndOpenWithEncoding,
-    selectApplication,
-  });
-
-  const {
-    uploading,
-    uploadTasks,
-    dragActive,
-    handleDownload,
-    handleUploadEntries,
-    handleFileSelect,
-    handleFolderSelect,
-    handleDrag,
-    handleDrop,
-    cancelUpload,
-    cancelTask,
-    dismissTask,
-  } = useSftpModalTransfers({
-    currentPath,
-    currentPathRef,
-    isLocalSession,
-    joinPath: joinPathForSession,
-    ensureSftp,
-    loadFiles,
-    readLocalFile,
-    readSftp: readSftpWithEncoding,
-    writeLocalFile,
-    writeSftpBinaryWithProgress: writeSftpBinaryWithProgressWithEncoding,
-    writeSftpBinary: writeSftpBinaryWithEncoding,
-    writeSftp: writeSftpWithEncoding,
-    mkdirLocal,
-    mkdirSftp: mkdirSftpWithEncoding,
-    cancelSftpUpload,
-    startStreamTransfer,
-    cancelTransfer,
-    showSaveDialog,
-    setLoading,
-    t,
-    useCompressedUpload: sftpUseCompressedUpload,
-    listSftp: listSftpWithEncoding,
-    deleteLocalFile,
-  });
-  const hasEverOpenedRef = useRef(false);
-
-  const hasActiveTransferTasks = useMemo(
-    () =>
-      uploadTasks.some(
-        (task) =>
-          task.status === "pending" ||
-          task.status === "uploading" ||
-          task.status === "downloading",
-      ),
-    [uploadTasks],
-  );
-
-  useEffect(() => {
-    if (open) {
-      hasEverOpenedRef.current = true;
-      return;
-    }
-
-    if (!hasEverOpenedRef.current) return;
-    if (uploading || hasActiveTransferTasks) return;
-
-    void closeSftpSession();
-  }, [closeSftpSession, hasActiveTransferTasks, open, sessionVersion, uploading]);
-
-  const handleClose = async () => {
-    if (uploading || hasActiveTransferTasks) {
-      onClose();
-      return;
-    }
-
-    await closeSftpSession();
-    onClose();
-  };
-
-  // Handle initial entries to upload (from drag-and-drop to terminal)
-  const initialUploadTriggeredRef = useRef(false);
-  const prevLoadingRef = useRef(loading);
-  const prevEntriesRef = useRef<DropEntry[] | undefined>(undefined);
-  useEffect(() => {
-    // Detect when loading transitions from true to false (initial load complete)
-    const wasLoading = prevLoadingRef.current;
-    prevLoadingRef.current = loading;
-    const justFinishedLoading = wasLoading && !loading;
-
-    // Reset the flag when initialEntriesToUpload is cleared
-    if (!initialEntriesToUpload || initialEntriesToUpload.length === 0) {
-      initialUploadTriggeredRef.current = false;
-      prevEntriesRef.current = undefined;
-      return;
-    }
-
-    // Reset the flag when new entries arrive (different reference = new drop)
-    if (initialEntriesToUpload !== prevEntriesRef.current) {
-      initialUploadTriggeredRef.current = false;
-      prevEntriesRef.current = initialEntriesToUpload;
-    }
-
-    // Prevent duplicate uploads
-    if (initialUploadTriggeredRef.current) return;
-
-    // Wait for SFTP connection to be established
-    // Trigger when: modal is open AND loading just finished (works for empty directories too)
-    if (!open || loading) return;
-    if (!justFinishedLoading) return;
-
-    initialUploadTriggeredRef.current = true;
-
-    // Trigger upload with full DropEntry data (preserves directory structure)
-    void handleUploadEntries(initialEntriesToUpload);
-  }, [handleUploadEntries, initialEntriesToUpload, loading, open]);
-
-  // Display files with parent entry (like SftpView)
-  const displayFiles = useMemo(() => {
-    // Filter hidden files using utility function
-    const visibleFiles = filterHiddenFiles(files, sftpShowHiddenFiles);
-
-    // Check if we're at root
-    const atRoot = isRootPathForSession(currentPath);
-    if (atRoot) return visibleFiles;
-
-    // Add ".." parent directory entry at the top (only if not at root)
-    const parentEntry: RemoteFile = {
-      name: "..",
-      type: "directory",
-      size: "--",
-      lastModified: undefined,
-    };
-    return [parentEntry, ...visibleFiles.filter((f) => f.name !== "..")];
-  }, [files, currentPath, isRootPathForSession, sftpShowHiddenFiles]);
-
-  // Sorted files
-  const sortedFiles = useMemo(() => {
-    if (!displayFiles.length) return displayFiles;
-
-    // Keep ".." at the top, sort the rest
-    const parentEntry = displayFiles.find((f) => f.name === "..");
-    const otherFiles = displayFiles.filter((f) => f.name !== "..");
-
-    const sorted = [...otherFiles].sort((a, b) => {
-      // Directories and symlinks pointing to directories come first
-      const aIsDir = a.type === "directory" || (a.type === "symlink" && a.linkTarget === "directory");
-      const bIsDir = b.type === "directory" || (b.type === "symlink" && b.linkTarget === "directory");
-      if (aIsDir && !bIsDir) return -1;
-      if (!aIsDir && bIsDir) return 1;
-
-      let cmp = 0;
-      switch (sortField) {
-        case "name":
-          cmp = a.name.localeCompare(b.name);
-          break;
-        case "size": {
-          const sizeA =
-            typeof a.size === "number"
-              ? a.size
-              : parseInt(String(a.size), 10) || 0;
-          const sizeB =
-            typeof b.size === "number"
-              ? b.size
-              : parseInt(String(b.size), 10) || 0;
-          cmp = sizeA - sizeB;
-          break;
-        }
-        case "modified": {
-          const dateA = new Date(a.lastModified || 0).getTime();
-          const dateB = new Date(b.lastModified || 0).getTime();
-          cmp = dateA - dateB;
-          break;
-        }
-      }
-      return sortOrder === "asc" ? cmp : -cmp;
-    });
-
-    return parentEntry ? [parentEntry, ...sorted] : sorted;
-  }, [displayFiles, sortField, sortOrder]);
-  const hasFiles = files.length > 0;
-  const hasDisplayFiles = sortedFiles.length > 0;
-  const {
-    fileListRef,
-    handleFileListScroll,
-    shouldVirtualize,
-    totalHeight,
-    visibleRows,
-  } = useSftpModalVirtualList({ open, sortedFiles });
-
-
-  const { handleFileClick, handleFileDoubleClick } = useSftpModalSelection({
-    files,
-    setSelectedFiles,
-    currentPath,
-    joinPath: joinPathForSession,
-    onNavigate: handleNavigate,
-    onOpenFile: handleOpenFile,
-    onNavigateUp: handleUp,
-  });
-
-  // Keyboard shortcuts for modal
-  const handleKeyboardRename = useCallback((file: RemoteFile) => {
-    openRenameDialog(file);
-  }, [openRenameDialog]);
-
-  const handleKeyboardDelete = useCallback((fileNames: string[]) => {
-    // Find the files to pass to confirm dialog
-    if (fileNames.length === 0) return;
-    if (!confirm(t("sftp.deleteConfirm.title", { count: fileNames.length }))) return;
-
-    // Delete files
-    (async () => {
-      try {
-        for (const fileName of fileNames) {
-          const fullPath = joinPathForSession(currentPath, fileName);
-          if (isLocalSession) {
-            await deleteLocalFile(fullPath);
-          } else {
-            await deleteSftpWithEncoding(await ensureSftp(), fullPath);
-          }
-        }
-        await loadFiles(currentPath, { force: true });
-        setSelectedFiles(new Set());
-      } catch (e) {
-        toast.error(
-          e instanceof Error ? e.message : t("sftp.error.deleteFailed"),
-          "SFTP",
-        );
-      }
-    })();
-  }, [currentPath, isLocalSession, deleteLocalFile, deleteSftpWithEncoding, ensureSftp, loadFiles, setSelectedFiles, t, joinPathForSession]);
-
-  const handleKeyboardNewFolder = useCallback(() => {
-    handleCreateFolder();
-  }, [handleCreateFolder]);
-
-  useSftpModalKeyboardShortcuts({
-    keyBindings,
-    hotkeyScheme,
-    open,
-    files,
-    visibleFiles: displayFiles,
-    selectedFiles,
-    setSelectedFiles,
-    onRefresh: () => loadFiles(currentPath, { force: true }),
-    onRename: handleKeyboardRename,
-    onDelete: handleKeyboardDelete,
-    onNewFolder: handleKeyboardNewFolder,
-  });
-
-  const handleDeleteSelected = async () => {
-    if (selectedFiles.size === 0) return;
-    const fileNames = Array.from(selectedFiles);
-    if (!confirm(t("sftp.deleteConfirm.title", { count: fileNames.length }))) return;
-
-    try {
-      for (const fileName of fileNames) {
-        const fullPath = joinPathForSession(currentPath, fileName);
-        if (isLocalSession) {
-          await deleteLocalFile(fullPath);
-        } else {
-          await deleteSftpWithEncoding(await ensureSftp(), fullPath);
-        }
-      }
-      await loadFiles(currentPath, { force: true });
-      setSelectedFiles(new Set());
-    } catch (e) {
-      toast.error(
-        e instanceof Error ? e.message : t("sftp.error.deleteFailed"),
-        "SFTP",
-      );
-    }
-  };
-
-  const handleDownloadSelected = async () => {
-    if (selectedFiles.size === 0) return;
-    for (const fileName of selectedFiles) {
-      const file = files.find((f) => f.name === fileName);
-      if (file && file.type === "file") {
-        await handleDownload(file);
-      }
-    }
-  };
-
-  if (!open) return null;
-
-  return (
-    <>
-      <div className="h-full flex flex-col bg-background border-r border-border/60 overflow-hidden">
-        <SftpModalHeader
-          onClose={handleClose}
-          t={t}
-          host={host}
-          credentials={credentials}
-          showEncoding={!isLocalSession}
-          filenameEncoding={filenameEncoding}
-          onFilenameEncodingChange={setFilenameEncoding}
-          currentPath={currentPath}
-          isEditingPath={isEditingPath}
-          editingPathValue={editingPathValue}
-          setEditingPathValue={setEditingPathValue}
-          handlePathSubmit={handlePathSubmit}
-          handlePathKeyDown={handlePathKeyDown}
-          handlePathDoubleClick={handlePathDoubleClick}
-          isAtRoot={isRootPathForSession(currentPath)}
-          rootLabel={rootLabel}
-          isRefreshing={loading || reconnecting}
-          onUp={handleUp}
-          onHome={() =>
-            setCurrentPath((isLocalSession && localHomeRef.current) || rootPath)
-          }
-          onRefresh={() => loadFiles(currentPath, { force: true })}
-          visibleBreadcrumbs={visibleBreadcrumbs}
-          hiddenBreadcrumbs={hiddenBreadcrumbs}
-          needsBreadcrumbTruncation={needsBreadcrumbTruncation}
-          breadcrumbs={breadcrumbs}
-          onBreadcrumbSelect={(index) => setCurrentPath(breadcrumbPathAtForIndex(index))}
-          onRootSelect={() => setCurrentPath(rootPath)}
-          inputRef={inputRef}
-          folderInputRef={folderInputRef}
-          pathInputRef={pathInputRef}
-          uploading={uploading}
-          onTriggerUpload={() => inputRef.current?.click()}
-          onTriggerFolderUpload={() => folderInputRef.current?.click()}
-          onCreateFolder={handleCreateFolder}
-          onCreateFile={handleCreateFile}
-          onFileSelect={handleFileSelect}
-          onFolderSelect={handleFolderSelect}
-          showHiddenFiles={sftpShowHiddenFiles}
-          onToggleShowHiddenFiles={() =>
-            setSftpShowHiddenFiles(!sftpShowHiddenFiles)
-          }
-          onUpdateHost={onUpdateHost}
-          onNavigateToBookmark={(path) => setCurrentPath(path)}
-        />
-
-        <SftpModalFileList
-          t={t}
-          currentPath={currentPath}
-          isLocalSession={isLocalSession}
-          hasFiles={hasFiles}
-          hasDisplayFiles={hasDisplayFiles}
-          selectedFiles={selectedFiles}
-          dragActive={dragActive}
-          loading={loading}
-          loadingTextContent={loadingTextContent}
-          reconnecting={reconnecting}
-          columnWidths={columnWidths}
-          sortField={sortField}
-          sortOrder={sortOrder}
-          shouldVirtualize={shouldVirtualize}
-          totalHeight={totalHeight}
-          visibleRows={visibleRows}
-          fileListRef={fileListRef}
-          inputRef={inputRef}
-          folderInputRef={folderInputRef}
-          handleSort={handleSort}
-          handleResizeStart={handleResizeStart}
-          handleFileListScroll={handleFileListScroll}
-          handleDrag={handleDrag}
-          handleDrop={handleDrop}
-          handleFileClick={handleFileClick}
-          handleFileDoubleClick={handleFileDoubleClick}
-          handleDownload={handleDownload}
-          handleDelete={handleDelete}
-          handleOpenFile={handleOpenFile}
-          openFileOpenerDialog={openFileOpenerDialog}
-          handleEditFile={handleEditFile}
-          openRenameDialog={openRenameDialog}
-          openPermissionsDialog={openPermissionsDialog}
-          handleNavigate={handleNavigate}
-          handleCreateFolder={handleCreateFolder}
-          handleCreateFile={handleCreateFile}
-          handleDownloadSelected={handleDownloadSelected}
-          handleDeleteSelected={handleDeleteSelected}
-          loadFiles={loadFiles}
-          formatBytes={formatBytes}
-          formatDate={formatDate}
-        />
-
-        <SftpModalUploadTasks tasks={uploadTasks} t={t} onCancel={cancelUpload} onCancelTask={cancelTask} onDismiss={dismissTask} />
-
-        <SftpModalFooter
-          t={t}
-          files={files}
-          selectedFiles={selectedFiles}
-          loading={loading}
-          uploading={uploading}
-          onDownloadSelected={handleDownloadSelected}
-          onDeleteSelected={handleDeleteSelected}
-        />
-      </div>
-
-      <SftpModalDialogs
-        t={t}
-        showRenameDialog={showRenameDialog}
-        setShowRenameDialog={setShowRenameDialog}
-        renameTarget={renameTarget}
-        renameName={renameName}
-        setRenameName={setRenameName}
-        handleRename={handleRename}
-        isRenaming={isRenaming}
-        showPermissionsDialog={showPermissionsDialog}
-        setShowPermissionsDialog={setShowPermissionsDialog}
-        permissionsTarget={permissionsTarget}
-        permissions={permissions}
-        togglePermission={togglePermission}
-        getOctalPermissions={getOctalPermissions}
-        getSymbolicPermissions={getSymbolicPermissions}
-        handleSavePermissions={handleSavePermissions}
-        isChangingPermissions={isChangingPermissions}
-        showCreateDialog={showCreateDialog}
-        setShowCreateDialog={setShowCreateDialog}
-        createType={createType}
-        createName={createName}
-        setCreateName={setCreateName}
-        isCreating={isCreating}
-        handleCreateSubmit={handleCreateSubmit}
-      />
-
-      {/* File Opener Dialog */}
-      <FileOpenerDialog
-        open={showFileOpenerDialog}
-        onClose={() => {
-          setShowFileOpenerDialog(false);
-          setFileOpenerTarget(null);
-        }}
-        fileName={fileOpenerTarget?.name || ""}
-        onSelect={handleFileOpenerSelect}
-        onSelectSystemApp={handleSelectSystemApp}
-      />
-
-      {/* Text Editor Modal */}
-      <TextEditorModal
-        open={showTextEditor}
-        onClose={() => {
-          setShowTextEditor(false);
-          setTextEditorTarget(null);
-          setTextEditorContent("");
-        }}
-        fileName={textEditorTarget?.name || ""}
-        initialContent={textEditorContent}
-        onSave={handleSaveTextFile}
-        editorWordWrap={editorWordWrap}
-        onToggleWordWrap={() => setEditorWordWrap(!editorWordWrap)}
-      />
-    </>
-  );
-};
-
-export default SFTPModal;

components/SelectHostPanel.tsx

@@ -19,6 +19,12 @@ import { Input } from "./ui/input";
 import { ScrollArea } from "./ui/scroll-area";
 import { SortDropdown, SortMode } from "./ui/sort-dropdown";
 import { TagFilterDropdown } from "./ui/tag-filter-dropdown";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger,
+} from "./ui/tooltip";
 
 interface SelectHostPanelProps {
   hosts: Host[];
@@ -198,6 +204,7 @@ const SelectHostPanel: React.FC<SelectHostPanelProps> = ({
   }, [currentPath]);
 
   return (
+    <TooltipProvider delayDuration={300}>
     <div
       className={cn(
         "absolute right-0 top-0 bottom-0 w-[380px] border-l border-border/60 bg-background z-40 flex flex-col app-no-drag",
@@ -271,7 +278,7 @@ const SelectHostPanel: React.FC<SelectHostPanelProps> = ({
 
       {/* Content */}
       <ScrollArea className="flex-1">
-        <div className="p-4 space-y-4">
+        <div className="p-3 space-y-3">
           {/* Breadcrumbs */}
           {currentPath && (
             <div className="flex items-center gap-1 text-xs text-muted-foreground">
@@ -301,20 +308,20 @@ const SelectHostPanel: React.FC<SelectHostPanelProps> = ({
           )}
           {groupsWithCounts.length > 0 && (
             <div>
-              <h4 className="text-sm font-semibold mb-3">{t("vault.groups.title")}</h4>
+              <h4 className="text-xs font-semibold mb-2 text-muted-foreground">{t("vault.groups.title")}</h4>
               <div className="space-y-1">
                 {groupsWithCounts.map((group) => (
                   <div
                     key={group.path}
-                    className="flex items-center gap-3 px-3 py-2.5 rounded-lg hover:bg-muted/70 cursor-pointer transition-colors"
+                    className="flex items-center gap-2.5 px-2.5 py-2 rounded-lg hover:bg-muted/70 cursor-pointer transition-colors"
                     onClick={() => setCurrentPath(group.path)}
                   >
-                    <div className="h-10 w-10 rounded-lg bg-primary/15 text-primary flex items-center justify-center">
-                      <LayoutGrid size={18} />
+                    <div className="h-8 w-8 rounded-lg bg-primary/15 text-primary flex items-center justify-center shrink-0">
+                      <LayoutGrid size={15} />
                     </div>
                     <div className="flex-1 min-w-0">
-                      <div className="font-medium">{group.name}</div>
-                      <div className="text-xs text-muted-foreground">
+                      <div className="text-[13px] font-medium truncate">{group.name}</div>
+                      <div className="text-[11px] text-muted-foreground">
                         {t("vault.groups.hostsCount", { count: group.count })}
                       </div>
                     </div>
@@ -327,18 +334,19 @@ const SelectHostPanel: React.FC<SelectHostPanelProps> = ({
           {/* Hosts Section */}
           {filteredHosts.length > 0 && (
             <div>
-              <h4 className="text-sm font-semibold mb-3">{t("vault.nav.hosts")}</h4>
+              <h4 className="text-xs font-semibold mb-2 text-muted-foreground">{t("vault.nav.hosts")}</h4>
               <div className="space-y-1">
                 {filteredHosts.map((host) => {
                   const isSelected = selectedHostIds.includes(host.id);
+                  const connectionStr = `${host.username}@${host.hostname}:${host.port || 22}`;
 
                   return (
                     <div
                       key={host.id}
                       className={cn(
-                        "flex items-center gap-3 px-3 py-2.5 rounded-lg cursor-pointer transition-colors",
+                        "flex items-center gap-2.5 px-2.5 py-2 rounded-lg cursor-pointer transition-colors",
                         isSelected
-                          ? "bg-muted border border-border"
+                          ? "bg-muted"
                           : "hover:bg-muted/70",
                       )}
                       onClick={() => onSelect(host)}
@@ -346,16 +354,32 @@ const SelectHostPanel: React.FC<SelectHostPanelProps> = ({
                       <DistroAvatar
                         host={host}
                         fallback={host.os[0].toUpperCase()}
-                        className="h-10 w-10"
+                        className="h-8 w-8 rounded-md"
                       />
                       <div className="flex-1 min-w-0">
-                        <div className="font-medium">{host.label}</div>
-                        <div className="text-xs text-muted-foreground truncate">
-                          {host.username}@{host.hostname}:{host.port || 22}
-                        </div>
+                        <Tooltip>
+                          <TooltipTrigger asChild>
+                            <div className="text-[13px] font-medium truncate">
+                              {host.label}
+                            </div>
+                          </TooltipTrigger>
+                          <TooltipContent side="top" align="start">
+                            <p>{host.label}</p>
+                          </TooltipContent>
+                        </Tooltip>
+                        <Tooltip>
+                          <TooltipTrigger asChild>
+                            <div className="text-[11px] text-muted-foreground truncate">
+                              {connectionStr}
+                            </div>
+                          </TooltipTrigger>
+                          <TooltipContent side="top" align="start">
+                            <p>{connectionStr}</p>
+                          </TooltipContent>
+                        </Tooltip>
                       </div>
                       {isSelected && (
-                        <Check size={16} className="text-primary" />
+                        <Check size={14} className="text-primary shrink-0" />
                       )}
                     </div>
                   );
@@ -413,6 +437,7 @@ const SelectHostPanel: React.FC<SelectHostPanelProps> = ({
         />
       )}
     </div>
+    </TooltipProvider>
   );
 };
 

components/SerialConnectModal.tsx

@@ -35,7 +35,7 @@ interface SerialPort {
 interface SerialConnectModalProps {
   open: boolean;
   onClose: () => void;
-  onConnect: (config: SerialConfig) => void;
+  onConnect: (config: SerialConfig, options?: { charset?: string }) => void;
   onSaveHost?: (host: Host) => void;
 }
 
@@ -65,6 +65,7 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
   const [flowControl, setFlowControl] = useState<SerialFlowControl>('none');
   const [localEcho, setLocalEcho] = useState(false);
   const [lineMode, setLineMode] = useState(false);
+  const [charset, setCharset] = useState('UTF-8');
 
   // Save configuration state
   const [saveConfig, setSaveConfig] = useState(false);
@@ -131,12 +132,13 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
         tags: ['serial'],
         protocol: 'serial',
         createdAt: Date.now(),
+        charset,
         serialConfig: config, // Store full serial configuration for connection
       };
       onSaveHost(host);
     }
 
-    onConnect(config);
+    onConnect(config, { charset });
     onClose();
   };
 
@@ -164,7 +166,7 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
 
   return (
     <Dialog open={open} onOpenChange={(isOpen) => !isOpen && onClose()}>
-      <DialogContent className="max-w-md">
+      <DialogContent className="max-w-md max-h-[85vh] flex flex-col">
         <DialogHeader>
           <DialogTitle className="flex items-center gap-2">
             <Usb size={18} />
@@ -175,7 +177,7 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
           </DialogDescription>
         </DialogHeader>
 
-        <div className="space-y-4 py-2">
+        <div className="space-y-4 py-2 overflow-y-auto flex-1 min-h-0">
           {/* Serial Port Selection */}
           <div className="space-y-2">
             <div className="flex items-center justify-between">
@@ -368,6 +370,20 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
                     className="h-4 w-4 rounded border-input"
                   />
                 </div>
+
+                {/* Charset */}
+                <div className="space-y-1">
+                  <Label htmlFor="serial-charset" className="text-sm font-medium">
+                    {t('serial.field.charset')}
+                  </Label>
+                  <Input
+                    id="serial-charset"
+                    placeholder={t("hostDetails.charset.placeholder")}
+                    value={charset}
+                    onChange={(e) => setCharset(e.target.value)}
+                    className="h-9"
+                  />
+                </div>
               </div>
             </CollapsibleContent>
           </Collapsible>

components/SerialHostDetailsPanel.tsx

@@ -66,6 +66,7 @@ export const SerialHostDetailsPanel: React.FC<SerialHostDetailsPanelProps> = ({
   const [flowControl, setFlowControl] = useState<SerialFlowControl>(initialData.serialConfig?.flowControl || 'none');
   const [localEcho, setLocalEcho] = useState(initialData.serialConfig?.localEcho || false);
   const [lineMode, setLineMode] = useState(initialData.serialConfig?.lineMode || false);
+  const [charset, setCharset] = useState(initialData.charset || 'UTF-8');
   const [tags, setTags] = useState<string[]>(initialData.tags || []);
   const [group, setGroup] = useState(initialData.group || '');
 
@@ -107,6 +108,7 @@ export const SerialHostDetailsPanel: React.FC<SerialHostDetailsPanelProps> = ({
       port: baudRate,
       tags,
       group,
+      charset,
       serialConfig: config,
     };
 
@@ -392,6 +394,20 @@ export const SerialHostDetailsPanel: React.FC<SerialHostDetailsPanelProps> = ({
                   className="h-4 w-4 rounded border-input"
                 />
               </div>
+
+              {/* Charset */}
+              <div className="space-y-1">
+                <Label htmlFor="serial-charset" className="text-sm font-medium">
+                  {t('serial.field.charset')}
+                </Label>
+                <Input
+                  id="serial-charset"
+                  placeholder={t("hostDetails.charset.placeholder")}
+                  value={charset}
+                  onChange={(e) => setCharset(e.target.value)}
+                  className="h-9"
+                />
+              </div>
             </div>
           </CollapsibleContent>
         </Collapsible>

components/SettingsApplicationTab.tsx

@@ -68,9 +68,11 @@ interface SettingsApplicationTabProps {
   checkNow: UseUpdateCheckResult['checkNow'];
   openReleasePage: UseUpdateCheckResult['openReleasePage'];
   installUpdate: UseUpdateCheckResult['installUpdate'];
+  startDownload: UseUpdateCheckResult['startDownload'];
+  isUpdateDemoMode: boolean;
 }
 
-export default function SettingsApplicationTab({ updateState, checkNow, openReleasePage, installUpdate }: SettingsApplicationTabProps) {
+export default function SettingsApplicationTab({ updateState, checkNow, openReleasePage, installUpdate, startDownload, isUpdateDemoMode }: SettingsApplicationTabProps) {
   const { t } = useI18n();
   const { openExternal, getApplicationInfo } = useApplicationBackend();
   const [appInfo, setAppInfo] = useState<AppInfo>({ name: "Netcatty", version: "" });
@@ -94,10 +96,6 @@ export default function SettingsApplicationTab({ updateState, checkNow, openRele
     };
   }, [getApplicationInfo]);
 
-  // Check if demo mode is enabled for development testing
-  const isUpdateDemoMode = typeof window !== 'undefined' &&
-    window.localStorage?.getItem('debug.updateDemo') === '1';
-
   const handleCheckForUpdates = async () => {
     // In demo mode, allow checking even for dev builds
     if (!isUpdateDemoMode && (!appInfo.version || appInfo.version === '0.0.0')) {
@@ -150,7 +148,7 @@ export default function SettingsApplicationTab({ updateState, checkNow, openRele
                 {/* Update badge - reflects auto-download state */}
                 {updateState.latestRelease && (updateState.hasUpdate || updateState.autoDownloadStatus === 'downloading' || updateState.autoDownloadStatus === 'ready') && (
                   <button
-                    onClick={() => updateState.autoDownloadStatus === 'ready' ? installUpdate() : void openReleasePage()}
+                    onClick={() => updateState.autoDownloadStatus === 'ready' ? installUpdate() : updateState.autoDownloadStatus === 'downloading' ? undefined : startDownload()}
                     className={cn(
                       "inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-xs font-medium",
                       updateState.autoDownloadStatus === 'ready'
@@ -177,7 +175,7 @@ export default function SettingsApplicationTab({ updateState, checkNow, openRele
               variant="secondary"
               className="gap-2"
               onClick={() => void handleCheckForUpdates()}
-              disabled={updateState.isChecking}
+              disabled={updateState.isChecking || updateState.manualCheckStatus === 'checking' || updateState.autoDownloadStatus === 'downloading' || updateState.autoDownloadStatus === 'ready'}
             >
               {updateState.isChecking ? (
                 <Loader2 size={16} className="animate-spin" />

components/SettingsPage.tsx

@@ -5,6 +5,7 @@
 import { AppWindow, Cloud, FileType, HardDrive, Keyboard, Palette, Sparkles, TerminalSquare, X } from "lucide-react";
 import React, { useCallback, useEffect, useMemo, useState } from "react";
 import { useSettingsState } from "../application/state/useSettingsState";
+import { useAvailableFonts } from "../application/state/fontStore";
 import { usePortForwardingState } from "../application/state/usePortForwardingState";
 import { useVaultState } from "../application/state/useVaultState";
 import { useWindowControls } from "../application/state/useWindowControls";
@@ -19,7 +20,6 @@ import SettingsTerminalTab from "./settings/tabs/SettingsTerminalTab";
 import SettingsSystemTab from "./settings/tabs/SettingsSystemTab";
 const SettingsAITab = React.lazy(() => import("./settings/tabs/SettingsAITab"));
 import { Tabs, TabsList, TabsTrigger } from "./ui/tabs";
-import type { TerminalFont } from "../infrastructure/config/fonts";
 
 const isMac = typeof navigator !== "undefined" && /Mac|iPhone|iPad/.test(navigator.platform);
 
@@ -45,12 +45,65 @@ class AITabErrorBoundary extends React.Component<
   }
 }
 
-type SettingsState = ReturnType<typeof useSettingsState> & {
-    availableFonts: TerminalFont[];
-};
+type SettingsState = ReturnType<typeof useSettingsState>;
 
 const SettingsSyncTab = React.lazy(() => import("./settings/tabs/SettingsSyncTab"));
 
+const SettingsTerminalTabContainer: React.FC<{ settings: SettingsState }> = ({ settings }) => {
+    const availableFonts = useAvailableFonts();
+
+    return (
+        <SettingsTerminalTab
+            terminalThemeId={settings.terminalThemeId}
+            setTerminalThemeId={settings.setTerminalThemeId}
+            terminalFontFamilyId={settings.terminalFontFamilyId}
+            setTerminalFontFamilyId={settings.setTerminalFontFamilyId}
+            terminalFontSize={settings.terminalFontSize}
+            setTerminalFontSize={settings.setTerminalFontSize}
+            terminalSettings={settings.terminalSettings}
+            updateTerminalSetting={settings.updateTerminalSetting}
+            availableFonts={availableFonts}
+            workspaceFocusStyle={settings.workspaceFocusStyle}
+            setWorkspaceFocusStyle={settings.setWorkspaceFocusStyle}
+        />
+    );
+};
+
+const SettingsAITabContainer: React.FC = () => {
+    const aiState = useAIState();
+
+    return (
+        <AITabErrorBoundary>
+            <React.Suspense fallback={<div className="flex-1 px-6 py-5 text-sm text-muted-foreground">Loading AI settings...</div>}>
+                <SettingsAITab
+                    providers={aiState.providers}
+                    addProvider={aiState.addProvider}
+                    updateProvider={aiState.updateProvider}
+                    removeProvider={aiState.removeProvider}
+                    activeProviderId={aiState.activeProviderId}
+                    setActiveProviderId={aiState.setActiveProviderId}
+                    activeModelId={aiState.activeModelId}
+                    setActiveModelId={aiState.setActiveModelId}
+                    globalPermissionMode={aiState.globalPermissionMode}
+                    setGlobalPermissionMode={aiState.setGlobalPermissionMode}
+                    externalAgents={aiState.externalAgents}
+                    setExternalAgents={aiState.setExternalAgents}
+                    defaultAgentId={aiState.defaultAgentId}
+                    setDefaultAgentId={aiState.setDefaultAgentId}
+                    commandBlocklist={aiState.commandBlocklist}
+                    setCommandBlocklist={aiState.setCommandBlocklist}
+                    commandTimeout={aiState.commandTimeout}
+                    setCommandTimeout={aiState.setCommandTimeout}
+                    maxIterations={aiState.maxIterations}
+                    setMaxIterations={aiState.setMaxIterations}
+                    webSearchConfig={aiState.webSearchConfig}
+                    setWebSearchConfig={aiState.setWebSearchConfig}
+                />
+            </React.Suspense>
+        </AITabErrorBoundary>
+    );
+};
+
 const SettingsSyncTabWithVault: React.FC<{ onSettingsApplied?: () => void }> = ({ onSettingsApplied }) => {
     const {
         hosts,
@@ -98,10 +151,13 @@ const SettingsSyncTabWithVault: React.FC<{ onSettingsApplied?: () => void }> = (
 const SettingsPageContent: React.FC<{ settings: SettingsState }> = ({ settings }) => {
     const { t } = useI18n();
     const { notifyRendererReady, closeSettingsWindow } = useWindowControls();
-    const { updateState, checkNow, installUpdate, openReleasePage } = useUpdateCheck({ autoUpdateEnabled: settings.autoUpdateEnabled });
-    const aiState = useAIState();
+    const { updateState, checkNow, installUpdate, openReleasePage, startDownload, isUpdateDemoMode } = useUpdateCheck({ autoUpdateEnabled: settings.autoUpdateEnabled });
     const [activeTab, setActiveTab] = useState("application");
     const [mountedTabs, setMountedTabs] = useState(() => new Set(["application"]));
+    const isImmersive = settings.immersiveMode;
+    const toggleImmersive = useCallback(() => {
+        settings.setImmersiveMode(!isImmersive);
+    }, [settings, isImmersive]);
 
     useEffect(() => {
         notifyRendererReady();
@@ -206,6 +262,8 @@ const SettingsPageContent: React.FC<{ settings: SettingsState }> = ({ settings }
                             checkNow={checkNow}
                             openReleasePage={openReleasePage}
                             installUpdate={installUpdate}
+                            startDownload={startDownload}
+                            isUpdateDemoMode={isUpdateDemoMode}
                         />
                     )}
 
@@ -227,21 +285,13 @@ const SettingsPageContent: React.FC<{ settings: SettingsState }> = ({ settings }
                             setUiLanguage={settings.setUiLanguage}
                             customCSS={settings.customCSS}
                             setCustomCSS={settings.setCustomCSS}
+                            isImmersive={isImmersive}
+                            onToggleImmersive={toggleImmersive}
                         />
                     )}
 
                     {mountedTabs.has("terminal") && (
-                        <SettingsTerminalTab
-                            terminalThemeId={settings.terminalThemeId}
-                            setTerminalThemeId={settings.setTerminalThemeId}
-                            terminalFontFamilyId={settings.terminalFontFamilyId}
-                            setTerminalFontFamilyId={settings.setTerminalFontFamilyId}
-                            terminalFontSize={settings.terminalFontSize}
-                            setTerminalFontSize={settings.setTerminalFontSize}
-                            terminalSettings={settings.terminalSettings}
-                            updateTerminalSetting={settings.updateTerminalSetting}
-                            availableFonts={settings.availableFonts}
-                        />
+                        <SettingsTerminalTabContainer settings={settings} />
                     )}
 
                     {mountedTabs.has("shortcuts") && (
@@ -261,34 +311,7 @@ const SettingsPageContent: React.FC<{ settings: SettingsState }> = ({ settings }
                     )}
 
                     {mountedTabs.has("ai") && (
-                        <AITabErrorBoundary>
-                        <React.Suspense fallback={null}>
-                        <SettingsAITab
-                            providers={aiState.providers}
-                            addProvider={aiState.addProvider}
-                            updateProvider={aiState.updateProvider}
-                            removeProvider={aiState.removeProvider}
-                            activeProviderId={aiState.activeProviderId}
-                            setActiveProviderId={aiState.setActiveProviderId}
-                            activeModelId={aiState.activeModelId}
-                            setActiveModelId={aiState.setActiveModelId}
-                            globalPermissionMode={aiState.globalPermissionMode}
-                            setGlobalPermissionMode={aiState.setGlobalPermissionMode}
-                            externalAgents={aiState.externalAgents}
-                            setExternalAgents={aiState.setExternalAgents}
-                            defaultAgentId={aiState.defaultAgentId}
-                            setDefaultAgentId={aiState.setDefaultAgentId}
-                            commandBlocklist={aiState.commandBlocklist}
-                            setCommandBlocklist={aiState.setCommandBlocklist}
-                            commandTimeout={aiState.commandTimeout}
-                            setCommandTimeout={aiState.setCommandTimeout}
-                            maxIterations={aiState.maxIterations}
-                            setMaxIterations={aiState.setMaxIterations}
-                            webSearchConfig={aiState.webSearchConfig}
-                            setWebSearchConfig={aiState.setWebSearchConfig}
-                        />
-                        </React.Suspense>
-                        </AITabErrorBoundary>
+                        <SettingsAITabContainer />
                     )}
 
                     {mountedTabs.has("sync") && (
@@ -318,6 +341,7 @@ const SettingsPageContent: React.FC<{ settings: SettingsState }> = ({ settings }
                             checkNow={checkNow}
                             installUpdate={installUpdate}
                             openReleasePage={openReleasePage}
+                            startDownload={startDownload}
                         />
                     )}
                 </div>

components/SftpSidePanel.tsx

@@ -10,7 +10,8 @@
  * Used in TerminalLayer to provide SFTP alongside terminal sessions.
  */
 
-import React, { memo, useCallback, useEffect, useMemo, useRef } from "react";
+import React, { memo, useCallback, useEffect, useMemo, useRef, useState } from "react";
+import { formatHostPort } from "../domain/host";
 import { useI18n } from "../application/i18n/I18nProvider";
 import { useSftpState } from "../application/state/useSftpState";
 import { useSftpBackend } from "../application/state/useSftpBackend";
@@ -30,12 +31,17 @@ import { SftpTransferQueue } from "./sftp/SftpTransferQueue";
 import { SftpContextProvider } from "./sftp";
 import { useSftpViewPaneCallbacks } from "./sftp/hooks/useSftpViewPaneCallbacks";
 import { useSftpViewTabs } from "./sftp/hooks/useSftpViewTabs";
+import { useSftpKeyboardShortcuts } from "./sftp/hooks/useSftpKeyboardShortcuts";
+import { sftpFocusStore } from "./sftp/hooks/useSftpFocusedPane";
+import { keepOnlyPaneSelections } from "./sftp/hooks/selectionScope";
+import { KeyBinding, HotkeyScheme } from "../domain/models";
 
 interface SftpSidePanelProps {
   hosts: Host[];
   keys: SSHKey[];
   identities: Identity[];
   updateHosts: (hosts: Host[]) => void;
+  sftpDefaultViewMode: "list" | "tree";
   /** The host to connect to (follows focused terminal) */
   activeHost: Host | null;
   initialLocation?: { hostId: string; path: string } | null;
@@ -54,6 +60,8 @@ interface SftpSidePanelProps {
   sftpAutoSync: boolean;
   sftpShowHiddenFiles: boolean;
   sftpUseCompressedUpload: boolean;
+  hotkeyScheme: HotkeyScheme;
+  keyBindings: KeyBinding[];
   editorWordWrap: boolean;
   setEditorWordWrap: (value: boolean) => void;
   onGetTerminalCwd?: () => Promise<string | null>;
@@ -64,6 +72,7 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
   keys,
   identities,
   updateHosts,
+  sftpDefaultViewMode,
   activeHost,
   initialLocation,
   showWorkspaceHostHeader = false,
@@ -75,6 +84,8 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
   sftpAutoSync,
   sftpShowHiddenFiles,
   sftpUseCompressedUpload,
+  hotkeyScheme,
+  keyBindings,
   editorWordWrap,
   setEditorWordWrap,
   onGetTerminalCwd,
@@ -101,7 +112,15 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
   }), [fileWatchHandlers, sftpUseCompressedUpload, sftpShowHiddenFiles]);
 
   const sftp = useSftpState(hosts, keys, identities, sftpOptions);
-  const { showSaveDialog, startStreamTransfer } = useSftpBackend();
+  const {
+    showSaveDialog,
+    selectDirectory,
+    startStreamTransfer,
+    listSftp,
+    mkdirLocal,
+    deleteLocalFile,
+    listLocalDir,
+  } = useSftpBackend();
 
   const sftpRef = useRef(sftp);
   sftpRef.current = sftp;
@@ -111,6 +130,17 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
 
   const autoSyncRef = useRef(sftpAutoSync);
   autoSyncRef.current = sftpAutoSync;
+  const panelRootRef = useRef<HTMLDivElement>(null);
+  const dialogActionScopeIdRef = useRef(`sftp-side-panel:${crypto.randomUUID()}`);
+  const [hasPaneFocus, setHasPaneFocus] = useState(false);
+
+  useSftpKeyboardShortcuts({
+    keyBindings,
+    hotkeyScheme,
+    sftpRef,
+    dialogActionScopeId: dialogActionScopeIdRef.current,
+    isActive: isVisible && hasPaneFocus,
+  });
 
   const { getOpenerForFile, setOpenerForExtension } = useSftpFileAssociations();
   const getOpenerForFileRef = useRef(getOpenerForFile);
@@ -122,10 +152,60 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
     sftpRef.current.setShowHiddenFiles("left", paneId, !pane.showHiddenFiles);
   }, []);
 
+  const syncFocusedSelection = useCallback((tabId: string | null) => {
+    if (tabId) {
+      keepOnlyPaneSelections(sftpRef.current, { side: "left", tabId });
+      return;
+    }
+    keepOnlyPaneSelections(sftpRef.current, null);
+  }, []);
+
+  const handlePaneFocus = useCallback(() => {
+    sftpFocusStore.setFocusedSide("left");
+    setHasPaneFocus(true);
+    syncFocusedSelection(sftpRef.current.getActiveTabId("left"));
+  }, [syncFocusedSelection]);
+
   // NOTE: We intentionally do NOT sync to activeTabStore here.
   // activeTabStore is a global singleton shared with SftpView.
   // Writing to it here would corrupt SftpView's left pane visibility.
 
+  useEffect(() => {
+    if (!isVisible) {
+      setHasPaneFocus(false);
+      syncFocusedSelection(null);
+    }
+  }, [isVisible, syncFocusedSelection]);
+
+  useEffect(() => {
+    if (!isVisible) return;
+
+    const handlePointerDown = (event: PointerEvent) => {
+      const target = event.target as Node | null;
+      const elementTarget = target instanceof Element ? target : null;
+      const isPortalInteraction = !!elementTarget?.closest(
+        '#netcatty-context-menu-root, [role="dialog"], [data-radix-popper-content-wrapper]',
+      );
+      if (isPortalInteraction) {
+        return;
+      }
+
+      if (panelRootRef.current?.contains(target)) {
+        sftpFocusStore.setFocusedSide("left");
+        setHasPaneFocus(true);
+        syncFocusedSelection(sftpRef.current.getActiveTabId("left"));
+      } else {
+        setHasPaneFocus(false);
+        syncFocusedSelection(null);
+      }
+    };
+
+    document.addEventListener("pointerdown", handlePointerDown, true);
+    return () => {
+      document.removeEventListener("pointerdown", handlePointerDown, true);
+    };
+  }, [isVisible, syncFocusedSelection]);
+
   const {
     leftCallbacks,
     rightCallbacks,
@@ -153,9 +233,14 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
     getOpenerForFileRef,
     setOpenerForExtension,
     t,
+    listSftp,
+    mkdirLocal,
+    deleteLocalFile,
     showSaveDialog,
+    selectDirectory,
     startStreamTransfer,
     getSftpIdForConnection: sftp.getSftpIdForConnection,
+    listLocalFiles: listLocalDir,
   });
 
   const {
@@ -183,17 +268,12 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
   // Maps tab IDs to the connectionKey used to create them, so we can
   // correctly identify tabs when the same host ID has different overrides.
   const tabConnectionKeyMapRef = useRef<Map<string, string>>(new Map());
-  const pendingConnectionKeyRef = useRef<string | null>(null);
-  const prevIsVisibleRef = useRef(isVisible);
 
-  // Reset location guard when the panel is reopened so the terminal cwd
-  // is re-applied even if it matches the previous session's path.
-  useEffect(() => {
-    if (isVisible && !prevIsVisibleRef.current) {
-      lastAppliedInitialLocationKeyRef.current = null;
-    }
-    prevIsVisibleRef.current = isVisible;
-  }, [isVisible]);
+  // NOTE: We intentionally do NOT reset lastAppliedInitialLocationKeyRef on
+  // visibility changes. When the user switches terminal tabs, the panel
+  // toggles isVisible but should preserve its navigation state (the user may
+  // have navigated away from initialLocation). When the panel is truly
+  // closed, the component unmounts and all refs are naturally reset.
 
   // Navigate SFTP to the terminal's current working directory
   const handleGoToTerminalCwd = useCallback(async () => {
@@ -206,14 +286,12 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
 
   // Track whether there's active work that should block connection switching.
   // Computed outside the effect so it can be in the dependency array.
-  const hasActiveTransfers = useMemo(
-    () => sftp.transfers.some((t) => t.status === "pending" || t.status === "transferring"),
-    [sftp.transfers],
-  );
-  // Block host-following while any connection-sensitive UI or operation
-  // is active: text editor, permissions dialog, file-opener dialog, or
+  // Block host-following while any connection-sensitive interactive UI is
+  // active: text editor, permissions dialog, file-opener dialog, or
   // auto-synced external file watches.
-  const hasActiveWork = hasActiveTransfers || showTextEditor || !!permissionsState || showFileOpenerDialog
+  // Note: transfers are NOT included here — they run on their own sftpId
+  // independent of the active tab, and forceNewTab preserves old connections.
+  const hasActiveWork = showTextEditor || !!permissionsState || showFileOpenerDialog
     || (sftp.activeFileWatchCountRef?.current ?? 0) > 0;
 
   useEffect(() => {
@@ -298,28 +376,24 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
       return;
     }
 
-    // Create a new tab when there's already an active connection to a different
-    // host, so the previous tab is preserved for instant switching on focus change.
+    // Create a new tab when there's already an active connection, so the
+    // previous tab is preserved for instant switching on focus change.
+    // This covers both different hosts AND same host with different
+    // session-time overrides (port/protocol), preventing the old SFTP
+    // session from being closed while it may have in-flight transfers.
     const currentConn = s.leftPane.connection;
-    const needsNewTab = !!(currentConn && currentConn.status === "connected" && currentConn.hostId !== activeHost.id);
+    const needsNewTab = !!(currentConn && currentConn.status === "connected");
 
     connectedKeyRef.current = connectionKey;
     connectedHostObjRef.current = activeHost;
-    // Store the pending key so the effect below can map it once the tab is created
-    pendingConnectionKeyRef.current = connectionKey;
-    s.connect("left", activeHost, needsNewTab ? { forceNewTab: true } : undefined);
+    s.connect("left", activeHost, {
+      ...(needsNewTab ? { forceNewTab: true } : undefined),
+      onTabCreated: (tabId) => {
+        tabConnectionKeyMapRef.current.set(tabId, connectionKey);
+      },
+    });
   }, [activeHost, hasActiveWork]); // Re-evaluate when work finishes so deferred switch can proceed
 
-  // Track the active tab's connectionKey after connect() creates or reuses it.
-  // Watches both activeTabId (new tab) and connection status (reused tab reconnecting).
-  useEffect(() => {
-    const activeTabId = sftp.leftTabs.activeTabId;
-    if (activeTabId && pendingConnectionKeyRef.current) {
-      tabConnectionKeyMapRef.current.set(activeTabId, pendingConnectionKeyRef.current);
-      pendingConnectionKeyRef.current = null;
-    }
-  }, [sftp.leftTabs.activeTabId, sftp.leftPane.connection?.status]);
-
   // Clear the remembered connection key when the pane disconnects or the
   // session is lost, so re-opening SFTP for the same terminal reconnects.
   // Also reset the file-watch counter — watches are bound to the SFTP session,
@@ -425,10 +499,20 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
   ]);
 
   const MAX_VISIBLE_TRANSFERS = 5;
-  const visibleTransfers = useMemo(
-    () => [...sftp.transfers].reverse().slice(0, MAX_VISIBLE_TRANSFERS),
-    [sftp.transfers],
-  );
+  const visibleTransfers = useMemo(() => {
+    const connection = sftp.leftPane.connection;
+    if (!connection) return [];
+    // Filter transfers to those relevant to the active connection's host,
+    // so workspace focus switches don't show transfers from other hosts.
+    const filtered = sftp.transfers.filter((t) => {
+      if (t.parentTaskId) return false; // Child tasks rendered by SftpTransferQueue
+      if (connection.isLocal) {
+        return t.sourceConnectionId === connection.id || t.targetConnectionId === connection.id;
+      }
+      return t.targetHostId === connection.hostId || t.sourceConnectionId === connection.id || t.targetConnectionId === connection.id;
+    });
+    return [...filtered].reverse().slice(0, MAX_VISIBLE_TRANSFERS);
+  }, [sftp.transfers, sftp.leftPane.connection]);
 
   const handleRevealTransferTarget = useCallback(
     async (task: TransferTask) => {
@@ -494,9 +578,11 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
       rightCallbacks={rightCallbacks}
     >
       <div
+        ref={panelRootRef}
         className="h-full flex flex-col bg-background overflow-hidden"
         style={isVisible ? undefined : { display: "none" }}
         aria-hidden={!isVisible}
+        onClick={handlePaneFocus}
       >
         {showWorkspaceHostHeader && displayHost && (
           <div className="shrink-0 border-b border-border/50 bg-muted/20 px-3 py-1.5">
@@ -509,7 +595,7 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
               />
               <div
                 className="min-w-0 flex-1 max-w-[calc(100%-1.75rem)] text-[11px] leading-5 truncate"
-                title={`${displayHost.label} · ${(displayHost.username || "root")}@${displayHost.hostname}:${displayHost.port || 22}`}
+                title={`${displayHost.label} · ${(displayHost.username || "root")}@${formatHostPort(displayHost.hostname, displayHost.port || 22)}`}
               >
                 <span className="font-medium">
                   {displayHost.label}
@@ -536,8 +622,12 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
                 <SftpPaneView
                   side="left"
                   pane={pane}
+                  dialogActionScopeId={dialogActionScopeIdRef.current}
+                  isPaneFocused={isVisible && hasPaneFocus}
+                  sftpDefaultViewMode={sftpDefaultViewMode}
                   showHeader
                   showEmptyHeader
+                  forceActive
                   onToggleShowHiddenFiles={() => handleToggleHiddenFiles(pane.id)}
                   onGoToTerminalCwd={onGetTerminalCwd ? handleGoToTerminalCwd : undefined}
                 />
@@ -548,6 +638,7 @@ const SftpSidePanelInner: React.FC<SftpSidePanelProps> = ({
         <SftpTransferQueue
           sftp={sftp}
           visibleTransfers={visibleTransfers}
+          allTransfers={sftp.transfers}
           canRevealTransferTarget={canRevealTransferTarget}
           onRevealTransferTarget={handleRevealTransferTarget}
         />
@@ -598,6 +689,7 @@ const sidePanelAreEqual = (prev: SftpSidePanelProps, next: SftpSidePanelProps):
   prev.keys === next.keys &&
   prev.identities === next.identities &&
   prev.updateHosts === next.updateHosts &&
+  prev.sftpDefaultViewMode === next.sftpDefaultViewMode &&
   prev.activeHost === next.activeHost &&
   prev.showWorkspaceHostHeader === next.showWorkspaceHostHeader &&
   prev.isVisible === next.isVisible &&

components/SftpView.tsx

@@ -19,10 +19,11 @@ import { useI18n } from "../application/i18n/I18nProvider";
 import { useIsSftpActive } from "../application/state/activeTabStore";
 import { useSftpState } from "../application/state/useSftpState";
 import { useSftpBackend } from "../application/state/useSftpBackend";
-import { useSettingsState } from "../application/state/useSettingsState";
+import { HotkeyScheme, KeyBinding } from "../domain/models";
 import { logger } from "../lib/logger";
 import { useRenderTracker } from "../lib/useRenderTracker";
 import { cn } from "../lib/utils";
+import { useInstantThemeSwitch } from "../lib/useInstantThemeSwitch";
 import { Host, Identity, SSHKey } from "../types";
 import { useSftpFileAssociations } from "../application/state/useSftpFileAssociations";
 import { toast } from "./ui/toast";
@@ -39,6 +40,8 @@ import { useSftpViewPaneCallbacks } from "./sftp/hooks/useSftpViewPaneCallbacks"
 import { useSftpViewTabs } from "./sftp/hooks/useSftpViewTabs";
 import { useSftpKeyboardShortcuts } from "./sftp/hooks/useSftpKeyboardShortcuts";
 import { sftpFocusStore, SftpFocusedSide, useSftpFocusedSide } from "./sftp/hooks/useSftpFocusedPane";
+import { keepOnlyActivePaneSelections, keepOnlyPaneSelections } from "./sftp/hooks/selectionScope";
+
 
 // Wrapper component that subscribes to activeTabId for CSS visibility
 // This isolates the activeTabId subscription - only this component re-renders on tab switch
@@ -49,21 +52,38 @@ interface SftpViewProps {
   keys: SSHKey[];
   identities: Identity[];
   updateHosts: (hosts: Host[]) => void;
+  sftpDefaultViewMode: "list" | "tree";
+  sftpDoubleClickBehavior: "open" | "transfer";
+  sftpAutoSync: boolean;
+  sftpShowHiddenFiles: boolean;
+  sftpUseCompressedUpload: boolean;
+  hotkeyScheme: HotkeyScheme;
+  keyBindings: KeyBinding[];
+  editorWordWrap: boolean;
+  setEditorWordWrap: (enabled: boolean) => void;
 }
 
-const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updateHosts }) => {
+const SftpViewInner: React.FC<SftpViewProps> = ({
+  hosts,
+  keys,
+  identities,
+  updateHosts,
+  sftpDefaultViewMode,
+  sftpDoubleClickBehavior,
+  sftpAutoSync,
+  sftpShowHiddenFiles,
+  sftpUseCompressedUpload,
+  hotkeyScheme,
+  keyBindings,
+  editorWordWrap,
+  setEditorWordWrap,
+}) => {
   const { t } = useI18n();
   const isActive = useIsSftpActive();
-  const {
-    sftpDoubleClickBehavior,
-    sftpAutoSync,
-    sftpShowHiddenFiles,
-    sftpUseCompressedUpload,
-    hotkeyScheme,
-    keyBindings,
-    editorWordWrap,
-    setEditorWordWrap,
-  } = useSettingsState();
+  const rootRef = useRef<HTMLDivElement>(null);
+  const dialogActionScopeIdRef = useRef("sftp-main-view");
+
+  useInstantThemeSwitch(rootRef);
 
   // File watch event handlers (stable refs to avoid re-creating the useSftpState options)
   const fileWatchHandlers = useMemo(() => ({
@@ -86,8 +106,16 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
 
   const sftp = useSftpState(hosts, keys, identities, sftpOptions);
 
-  // Get stream transfer functions for optimized downloads
-  const { showSaveDialog, startStreamTransfer } = useSftpBackend();
+  // Get backend helpers for file downloads and local filesystem writes.
+  const {
+    showSaveDialog,
+    selectDirectory,
+    startStreamTransfer,
+    listSftp,
+    mkdirLocal,
+    deleteLocalFile,
+    listLocalDir,
+  } = useSftpBackend();
 
   // Store sftp in a ref so callbacks can access the latest instance
   // without needing to re-create when sftp changes
@@ -107,6 +135,7 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
     keyBindings,
     hotkeyScheme,
     sftpRef,
+    dialogActionScopeId: dialogActionScopeIdRef.current,
     isActive,
   });
 
@@ -114,8 +143,18 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
   const focusedSide = useSftpFocusedSide();
 
   // Handle pane focus when clicking on a pane container
-  const handlePaneFocus = useCallback((side: SftpFocusedSide) => {
+  // Clear the opposite side's selection so file operations only affect the focused pane
+  const handlePaneFocus = useCallback((side: SftpFocusedSide, targetTabId?: string) => {
+    const prevSide = sftpFocusStore.getFocusedSide();
     sftpFocusStore.setFocusedSide(side);
+    if (prevSide !== side) {
+      if (targetTabId) {
+        keepOnlyPaneSelections(sftpRef.current, { side, tabId: targetTabId });
+      } else {
+        // Focus side changed — clear other panes but keep the newly focused pane intact.
+        keepOnlyActivePaneSelections(sftpRef.current, side);
+      }
+    }
   }, []);
 
   const handleToggleHiddenFiles = useCallback((side: "left" | "right", paneId: string) => {
@@ -176,13 +215,18 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
     getOpenerForFileRef,
     setOpenerForExtension,
     t,
+    listSftp,
+    mkdirLocal,
+    deleteLocalFile,
     showSaveDialog,
+    selectDirectory,
     startStreamTransfer,
     getSftpIdForConnection: sftp.getSftpIdForConnection,
+    listLocalFiles: listLocalDir,
   });
 
   const visibleTransfers = useMemo(
-    () => [...sftp.transfers].reverse().slice(0, 5),
+    () => [...sftp.transfers].filter((t) => !t.parentTaskId).reverse().slice(0, 5),
     [sftp.transfers],
   );
 
@@ -225,6 +269,26 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
     handleHostSelectRight,
   } = useSftpViewTabs({ sftp, sftpRef });
 
+  const handleAddTabLeftWithFocus = useCallback(() => {
+    const tabId = handleAddTabLeft();
+    handlePaneFocus("left", tabId);
+  }, [handleAddTabLeft, handlePaneFocus]);
+
+  const handleAddTabRightWithFocus = useCallback(() => {
+    const tabId = handleAddTabRight();
+    handlePaneFocus("right", tabId);
+  }, [handleAddTabRight, handlePaneFocus]);
+
+  const handleSelectTabLeftWithFocus = useCallback((tabId: string) => {
+    handleSelectTabLeft(tabId);
+    handlePaneFocus("left", tabId);
+  }, [handlePaneFocus, handleSelectTabLeft]);
+
+  const handleSelectTabRightWithFocus = useCallback((tabId: string) => {
+    handleSelectTabRight(tabId);
+    handlePaneFocus("right", tabId);
+  }, [handlePaneFocus, handleSelectTabRight]);
+
   return (
     <SftpContextProvider
       hosts={hosts}
@@ -235,6 +299,7 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
       rightCallbacks={rightCallbacks}
     >
       <div
+        ref={rootRef}
         className={cn(
           "absolute inset-0 min-h-0 flex flex-col",
           isActive ? "z-20" : "",
@@ -264,9 +329,9 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
               <SftpTabBar
                 tabs={leftTabsInfo}
                 side="left"
-                onSelectTab={handleSelectTabLeft}
+                onSelectTab={handleSelectTabLeftWithFocus}
                 onCloseTab={handleCloseTabLeft}
-                onAddTab={handleAddTabLeft}
+                onAddTab={handleAddTabLeftWithFocus}
                 onReorderTabs={handleReorderTabsLeft}
                 onMoveTabToOtherSide={handleMoveTabFromRightToLeft}
               />
@@ -282,6 +347,9 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
                   <SftpPaneView
                     side="left"
                     pane={pane}
+                    dialogActionScopeId={dialogActionScopeIdRef.current}
+                    isPaneFocused={focusedSide === "left"}
+                    sftpDefaultViewMode={sftpDefaultViewMode}
                     showHeader
                     showEmptyHeader={false}
                     onToggleShowHiddenFiles={() => handleToggleHiddenFiles("left", pane.id)}
@@ -321,9 +389,9 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
               <SftpTabBar
                 tabs={rightTabsInfo}
                 side="right"
-                onSelectTab={handleSelectTabRight}
+                onSelectTab={handleSelectTabRightWithFocus}
                 onCloseTab={handleCloseTabRight}
-                onAddTab={handleAddTabRight}
+                onAddTab={handleAddTabRightWithFocus}
                 onReorderTabs={handleReorderTabsRight}
                 onMoveTabToOtherSide={handleMoveTabFromLeftToRight}
               />
@@ -339,6 +407,9 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
                   <SftpPaneView
                     side="right"
                     pane={pane}
+                    dialogActionScopeId={dialogActionScopeIdRef.current}
+                    isPaneFocused={focusedSide === "right"}
+                    sftpDefaultViewMode={sftpDefaultViewMode}
                     showHeader
                     showEmptyHeader={false}
                     onToggleShowHiddenFiles={() => handleToggleHiddenFiles("right", pane.id)}
@@ -397,7 +468,18 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities, updat
 };
 
 const sftpViewAreEqual = (prev: SftpViewProps, next: SftpViewProps): boolean =>
-  prev.hosts === next.hosts && prev.keys === next.keys && prev.identities === next.identities;
+  prev.hosts === next.hosts &&
+  prev.keys === next.keys &&
+  prev.identities === next.identities &&
+  prev.sftpDefaultViewMode === next.sftpDefaultViewMode &&
+  prev.sftpDoubleClickBehavior === next.sftpDoubleClickBehavior &&
+  prev.sftpAutoSync === next.sftpAutoSync &&
+  prev.sftpShowHiddenFiles === next.sftpShowHiddenFiles &&
+  prev.sftpUseCompressedUpload === next.sftpUseCompressedUpload &&
+  prev.hotkeyScheme === next.hotkeyScheme &&
+  prev.keyBindings === next.keyBindings &&
+  prev.editorWordWrap === next.editorWordWrap &&
+  prev.setEditorWordWrap === next.setEditorWordWrap;
 
 export const SftpView = memo(SftpViewInner, sftpViewAreEqual);
 SftpView.displayName = "SftpView";

components/SnippetsManager.tsx

@@ -439,8 +439,8 @@ const SnippetsManager: React.FC<SnippetsManagerProps> = ({
     const name = newPackageName.trim();
     if (!name) return;
     
-    // Allow leading slash and validate the rest - allow hyphens anywhere in package names
-    if (!/^\/?([\w-]+(\/[\w-]+)*)\/?$/.test(name)) {
+    // Allow leading slash and validate the rest - allow hyphens and Unicode letters/numbers
+    if (!/^\/?([\w\p{L}\p{N}-]+(\/[\w\p{L}\p{N}-]+)*)\/?$/u.test(name)) {
       // Could add toast notification here for invalid characters
       return;
     }
@@ -550,9 +550,9 @@ const SnippetsManager: React.FC<SnippetsManagerProps> = ({
       return;
     }
 
-    // Validate: same rules as createPackage - only allow letters, numbers, hyphens, underscores
+    // Validate: same rules as createPackage - allow Unicode letters, numbers, hyphens, underscores
     // Since we're renaming a single segment (no slashes allowed), use the segment-level pattern
-    if (!/^[\w-]+$/.test(newName)) {
+    if (!/^[\w\p{L}\p{N}-]+$/u.test(newName)) {
       setRenameError(t('snippets.renameDialog.error.invalidChars'));
       return;
     }
@@ -1203,7 +1203,6 @@ const SnippetsManager: React.FC<SnippetsManagerProps> = ({
                 value={newPackageName}
                 onChange={(e) => setNewPackageName(e.target.value)}
                 onKeyDown={(e) => e.key === 'Enter' && createPackage()}
-                pattern="^/?([\w-]+(/[\w-]+)*)?/?$"
                 title="Package names can contain letters, numbers, hyphens, underscores, and forward slashes. Can optionally start with /"
               />
               <p className="text-[11px] text-muted-foreground">{t('snippets.packageDialog.hint')}</p>

components/Terminal.tsx

@@ -4,11 +4,11 @@ import { SerializeAddon } from "@xterm/addon-serialize";
 import { SearchAddon } from "@xterm/addon-search";
 import "@xterm/xterm/css/xterm.css";
 import { Cpu, HardDrive, Maximize2, MemoryStick, Radio, ArrowDownToLine, ArrowUpFromLine } from "lucide-react";
-import React, { memo, useCallback, useEffect, useMemo, useRef, useState } from "react";
-// flushSync removed - no longer needed
+import React, { memo, useCallback, useEffect, useLayoutEffect, useMemo, useRef, useState } from "react";
+import ReactDOM from "react-dom";
 import { useI18n } from "../application/i18n/I18nProvider";
 import { logger } from "../lib/logger";
-import { cn } from "../lib/utils";
+import { cn, normalizeLineEndings, wrapBracketedPaste } from "../lib/utils";
 import {
   Host,
   Identity,
@@ -25,6 +25,9 @@ import {
   shouldEnableNativeUserInputAutoScroll,
   shouldScrollOnTerminalInput,
 } from "../domain/terminalScroll";
+import {
+  resolveHostTerminalThemeId,
+} from "../domain/terminalAppearance";
 import { resolveHostAuth } from "../domain/sshAuth";
 import { useTerminalBackend } from "../application/state/useTerminalBackend";
 import KnownHostConfirmDialog, { HostKeyInfo } from "./KnownHostConfirmDialog";
@@ -41,6 +44,8 @@ import { TerminalToolbar } from "./terminal/TerminalToolbar";
 import { TerminalComposeBar } from "./terminal/TerminalComposeBar";
 import { TerminalContextMenu } from "./terminal/TerminalContextMenu";
 import { TerminalSearchBar } from "./terminal/TerminalSearchBar";
+import { ZmodemProgressIndicator } from "./terminal/ZmodemProgressIndicator";
+import { useZmodemTransfer } from "./terminal/hooks/useZmodemTransfer";
 import { createTerminalSessionStarters, type PendingAuth } from "./terminal/runtime/createTerminalSessionStarters";
 import { createXTermRuntime, type XTermRuntime } from "./terminal/runtime/createXTermRuntime";
 import { XTERM_PERFORMANCE_CONFIG } from "../infrastructure/config/xtermPerformance";
@@ -49,6 +54,7 @@ import { useTerminalContextActions } from "./terminal/hooks/useTerminalContextAc
 import { useTerminalAuthState } from "./terminal/hooks/useTerminalAuthState";
 import { useServerStats } from "./terminal/hooks/useServerStats";
 import { extractDropEntries, getPathForFile, DropEntry } from "../lib/sftpFileUtils";
+import { useTerminalAutocomplete, AutocompletePopup } from "./terminal/autocomplete";
 
 /**
  * Extract unique root paths from drop entries for local terminal path insertion.
@@ -105,7 +111,8 @@ interface TerminalProps {
   keys: SSHKey[];
   identities: Identity[];
   snippets: Snippet[];
-  allHosts?: Host[];
+  chainHosts?: Host[];
+  themePreviewId?: string;
   knownHosts?: KnownHost[];
   isVisible: boolean;
   inWorkspace?: boolean;
@@ -152,6 +159,10 @@ interface TerminalProps {
   onToggleComposeBar?: () => void;
   isWorkspaceComposeBarOpen?: boolean;
   onBroadcastInput?: (data: string, sourceSessionId: string) => void;
+  onSnippetExecutorChange?: (
+    sessionId: string,
+    executor: ((command: string, noAutoRun?: boolean) => void) | null,
+  ) => void;
   // Session log configuration for real-time streaming
   sessionLog?: { enabled: boolean; directory: string; format: string };
 }
@@ -174,7 +185,8 @@ const TerminalComponent: React.FC<TerminalProps> = ({
   keys,
   identities,
   snippets,
-  allHosts = [],
+  chainHosts = [],
+  themePreviewId,
   knownHosts: _knownHosts = [],
   isVisible,
   inWorkspace,
@@ -211,6 +223,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
   onToggleComposeBar,
   isWorkspaceComposeBarOpen,
   onBroadcastInput,
+  onSnippetExecutorChange,
   sessionLog,
 }) => {
   // Timeout for connection - increased to 120s to allow time for keyboard-interactive (2FA) authentication
@@ -223,11 +236,14 @@ const TerminalComponent: React.FC<TerminalProps> = ({
   const serializeAddonRef = useRef<SerializeAddon | null>(null);
   const searchAddonRef = useRef<SearchAddon | null>(null);
   const xtermRuntimeRef = useRef<XTermRuntime | null>(null);
+  const knownCwdRef = useRef<string | undefined>(undefined);
   const disposeDataRef = useRef<(() => void) | null>(null);
   const disposeExitRef = useRef<(() => void) | null>(null);
   const sessionRef = useRef<string | null>(null);
   const hasConnectedRef = useRef(false);
   const hasRunStartupCommandRef = useRef(false);
+  const terminalDataCapturedRef = useRef(false);
+  const onTerminalDataCaptureRef = useRef(onTerminalDataCapture);
   const commandBufferRef = useRef<string>("");
   const [hasMouseTracking, setHasMouseTracking] = useState(false);
   const mouseTrackingRef = useRef(false);
@@ -235,6 +251,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
 
   const terminalSettingsRef = useRef(terminalSettings);
   terminalSettingsRef.current = terminalSettings;
+  onTerminalDataCaptureRef.current = onTerminalDataCapture;
   const isVisibleRef = useRef(isVisible);
   isVisibleRef.current = isVisible;
   const pendingOutputScrollRef = useRef(false);
@@ -286,6 +303,11 @@ const TerminalComponent: React.FC<TerminalProps> = ({
   const snippetsRef = useRef(snippets);
   snippetsRef.current = snippets;
 
+  // Autocomplete handler refs (set after hook initialization)
+  const autocompleteKeyEventRef = useRef<((e: KeyboardEvent) => boolean) | undefined>(undefined);
+  const autocompleteInputRef = useRef<((data: string) => void) | undefined>(undefined);
+  const autocompleteRepositionRef = useRef<(() => void) | undefined>(undefined);
+
   const terminalBackend = useTerminalBackend();
   const { resizeSession, setSessionEncoding } = terminalBackend;
 
@@ -302,6 +324,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
   const [showSFTP, setShowSFTP] = useState(false);
   const [progressValue, setProgressValue] = useState(15);
   const [hasSelection, setHasSelection] = useState(false);
+  const [isDisconnectedDialogDismissed, setIsDisconnectedDialogDismissed] = useState(false);
 
   const statusRef = useRef<TerminalSession["status"]>(status);
   statusRef.current = status;
@@ -336,19 +359,170 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     handleCloseSearch,
   } = terminalSearch;
 
+  // Terminal autocomplete — onAcceptText writes directly to session (no CustomEvent)
+  const autocompleteAcceptTextRef = useRef<((text: string) => void) | undefined>(undefined);
+  autocompleteAcceptTextRef.current = (text: string) => {
+    const id = sessionRef.current;
+    if (id && text) {
+      // Serial line mode: buffer text and handle local echo instead of direct send
+      if (host.protocol === "serial" && serialConfig?.lineMode) {
+        for (const ch of text) {
+          if (ch === "\r") {
+            const line = serialLineBufferRef.current + "\r";
+            terminalBackend.writeToSession(id, line);
+            serialLineBufferRef.current = "";
+            if (serialConfig?.localEcho) termRef.current?.write("\r\n");
+          } else if (ch === "\x15") {
+            if (serialConfig?.localEcho && serialLineBufferRef.current.length > 0) {
+              termRef.current?.write("\b \b".repeat(serialLineBufferRef.current.length));
+            }
+            serialLineBufferRef.current = "";
+          } else if (ch === "\b" || ch === "\x7f") {
+            if (serialLineBufferRef.current.length > 0) {
+              serialLineBufferRef.current = serialLineBufferRef.current.slice(0, -1);
+              if (serialConfig?.localEcho) termRef.current?.write("\b \b");
+            }
+          } else if (ch.charCodeAt(0) >= 32) {
+            serialLineBufferRef.current += ch;
+            if (serialConfig?.localEcho) termRef.current?.write(ch);
+          }
+        }
+        // Still update commandBuffer and broadcast for serial line mode
+        // (fall through to shared bookkeeping below — don't return early)
+      } else if (host.protocol === "serial" && serialConfig?.localEcho) {
+        // Serial character mode with local echo: echo accepted text locally
+        terminalBackend.writeToSession(id, text);
+        for (const ch of text) {
+          if (ch === "\r") {
+            termRef.current?.write("\r\n");
+          } else if (ch.charCodeAt(0) >= 32) {
+            termRef.current?.write(ch);
+          }
+        }
+      } else {
+        terminalBackend.writeToSession(id, text);
+      }
+
+      // Broadcast to other sessions if broadcast mode is enabled
+      if (isBroadcastEnabledRef.current && onBroadcastInputRef.current) {
+        onBroadcastInputRef.current(text, sessionId);
+      }
+
+      // Update command buffer for onCommandExecuted tracking
+      for (const ch of text) {
+        if (ch === "\r" || ch === "\n") {
+          const cmd = commandBufferRef.current.trim();
+          if (cmd && onCommandExecuted) onCommandExecuted(cmd, host.id, host.label, sessionId);
+          commandBufferRef.current = "";
+        } else if (ch === "\x15") {
+          // Ctrl+U: clear line — reset command buffer (fuzzy match sends this)
+          commandBufferRef.current = "";
+        } else if (ch === "\b" || ch === "\x7f") {
+          // Backspace: remove last character (Windows fuzzy replacement uses \b)
+          commandBufferRef.current = commandBufferRef.current.slice(0, -1);
+        } else if (ch.charCodeAt(0) >= 32) {
+          commandBufferRef.current += ch;
+        }
+      }
+    }
+  };
+
+  const autocomplete = useTerminalAutocomplete({
+    termRef,
+    sessionId,
+    hostId: host.id,
+    hostOs: host.os || (host.protocol === "local"
+      ? (navigator.platform?.startsWith("Win") ? "windows" : navigator.platform?.startsWith("Mac") ? "macos" : "linux")
+      : "linux"),
+    settings: terminalSettings ? {
+      enabled: terminalSettings.autocompleteEnabled ?? true,
+      showGhostText: terminalSettings.autocompleteGhostText ?? true,
+      showPopupMenu: terminalSettings.autocompletePopupMenu ?? true,
+      debounceMs: terminalSettings.autocompleteDebounceMs ?? 100,
+      minChars: terminalSettings.autocompleteMinChars ?? 1,
+      maxSuggestions: terminalSettings.autocompleteMaxSuggestions ?? 8,
+    } : undefined,
+    onAcceptText: (text) => autocompleteAcceptTextRef.current?.(text),
+    protocol: host.protocol,
+    getCwd: () => knownCwdRef.current ?? xtermRuntimeRef.current?.currentCwd,
+  });
+
+  // Wire up autocomplete handler refs so createXTermRuntime can use them
+  autocompleteKeyEventRef.current = autocomplete.handleKeyEvent;
+  autocompleteInputRef.current = autocomplete.handleInput;
+  autocompleteRepositionRef.current = autocomplete.repositionPopup;
+  const autocompleteClosePopup = autocomplete.closePopup;
+
+  useEffect(() => {
+    knownCwdRef.current = undefined;
+  }, [sessionId, host.id]);
+
+  useEffect(() => {
+    if (host.protocol === "local" || host.protocol === "serial" || host.protocol === "telnet") {
+      return;
+    }
+    if (status !== "connected" || !sessionRef.current || knownCwdRef.current) return;
+
+    let cancelled = false;
+    const timer = setTimeout(async () => {
+      if (!sessionRef.current) return;
+      try {
+        const result = await terminalBackend.getSessionPwd(sessionRef.current);
+        if (!cancelled && result.success && result.cwd) {
+          knownCwdRef.current = result.cwd;
+        }
+      } catch {
+        // Best effort only.
+      }
+    }, 150);
+
+    return () => {
+      cancelled = true;
+      clearTimeout(timer);
+    };
+  }, [host.protocol, status, terminalBackend]);
+
+  useEffect(() => {
+    if (!isVisible) {
+      autocompleteClosePopup();
+    }
+  }, [isVisible, autocompleteClosePopup]);
+
   // Check if this is a local or serial connection (doesn't need connection dialog during connecting)
   const isLocalConnection = host.protocol === "local";
   const isSerialConnection = host.protocol === "serial";
 
-  // Server stats (CPU, Memory, Disk) for Linux servers
+  // Server stats (CPU, Memory, Disk) — only for Linux/macOS
   const { stats: serverStats } = useServerStats({
     sessionId,
     enabled: terminalSettings?.showServerStats ?? true,
     refreshInterval: terminalSettings?.serverStatsRefreshInterval ?? 5,
-    isLinux: host.os === 'linux',
+    isSupportedOs: host.os === 'linux' || host.os === 'macos',
     isConnected: status === 'connected',
+    isVisible,
   });
 
+  const zmodem = useZmodemTransfer(sessionId);
+
+  const zmodemToastedRef = useRef(false);
+  useEffect(() => {
+    if (zmodem.active) {
+      zmodemToastedRef.current = false;
+      return;
+    }
+    if (zmodemToastedRef.current) return;
+    if (zmodem.error) {
+      zmodemToastedRef.current = true;
+      toast.error(zmodem.error, 'ZMODEM');
+    } else if (zmodem.filename) {
+      zmodemToastedRef.current = true;
+      toast.success(
+        `${zmodem.transferType === 'upload' ? 'Uploaded' : 'Downloaded'}: ${zmodem.filename}`,
+        'ZMODEM',
+      );
+    }
+  }, [zmodem.active, zmodem.error, zmodem.filename, zmodem.transferType]);
+
   useEffect(() => {
     if (!error) {
       lastToastedErrorRef.current = null;
@@ -400,26 +574,47 @@ const TerminalComponent: React.FC<TerminalProps> = ({
 
   // Subscribe to custom theme changes so editing triggers re-render
   const customThemes = useCustomThemes();
+  const hasFontSizeOverride = host.fontSizeOverride === true || (host.fontSizeOverride === undefined && host.fontSize != null);
+  const hasFontFamilyOverride = host.fontFamilyOverride === true || (host.fontFamilyOverride === undefined && !!host.fontFamily);
+  const effectiveFontSize = useMemo(
+    () => (hasFontSizeOverride && host.fontSize != null ? host.fontSize : fontSize),
+    [fontSize, hasFontSizeOverride, host.fontSize],
+  );
+  const resolvedFontFamily = useMemo(() => {
+    const hostFontId = hasFontFamilyOverride && host.fontFamily
+      ? host.fontFamily
+      : fontFamilyId;
+    const resolvedFontId = hostFontId || "menlo";
+    return (availableFonts.find((f) => f.id === resolvedFontId) || availableFonts[0]).family;
+  }, [availableFonts, fontFamilyId, hasFontFamilyOverride, host.fontFamily]);
 
   const effectiveTheme = useMemo(() => {
-    if (host.theme) {
-      const hostTheme = TERMINAL_THEMES.find((t) => t.id === host.theme)
-        || customThemes.find((t) => t.id === host.theme);
+    const themeId = themePreviewId ?? resolveHostTerminalThemeId(
+      { theme: host.theme, themeOverride: host.themeOverride } as Pick<Host, 'theme' | 'themeOverride'>,
+      terminalTheme.id,
+    );
+    if (themeId) {
+      const hostTheme = TERMINAL_THEMES.find((t) => t.id === themeId)
+        || customThemes.find((t) => t.id === themeId);
       if (hostTheme) return hostTheme;
     }
     return terminalTheme;
-  }, [host.theme, terminalTheme, customThemes]);
+  }, [customThemes, host.theme, host.themeOverride, terminalTheme, themePreviewId]);
 
   const resolvedChainHosts =
-    (host.hostChain?.hostIds
-      ?.map((id) => allHosts.find((h) => h.id === id))
-      .filter(Boolean) as Host[]) || [];
+    chainHosts;
 
   const updateStatus = (next: TerminalSession["status"]) => {
     setStatus(next);
     hasConnectedRef.current = next === "connected";
     onStatusChange?.(sessionId, next);
   };
+  const handleTerminalDataCaptureOnce = useCallback((capturedSessionId: string, data: string) => {
+    const captureHandler = onTerminalDataCaptureRef.current;
+    if (!captureHandler || terminalDataCapturedRef.current) return;
+    terminalDataCapturedRef.current = true;
+    captureHandler(capturedSessionId, data);
+  }, []);
 
   const cleanupSession = () => {
     disposeDataRef.current?.();
@@ -487,7 +682,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
       }
     },
     onSessionExit,
-    onTerminalDataCapture,
+    onTerminalDataCapture: handleTerminalDataCaptureOnce,
     onOsDetected,
     onCommandExecuted,
     sessionLog,
@@ -496,12 +691,14 @@ const TerminalComponent: React.FC<TerminalProps> = ({
 
   useEffect(() => {
     let disposed = false;
+    terminalDataCapturedRef.current = false;
     setError(null);
     hasConnectedRef.current = false;
     pendingOutputScrollRef.current = false;
     setProgressLogs([]);
     setShowLogs(false);
     setIsCancelling(false);
+    setIsDisconnectedDialogDismissed(false);
 
     const boot = async () => {
       try {
@@ -531,7 +728,13 @@ const TerminalComponent: React.FC<TerminalProps> = ({
           serialLocalEcho: serialConfig?.localEcho,
           serialLineMode: serialConfig?.lineMode,
           serialLineBufferRef,
+          onCwdChange: (cwd: string) => {
+            knownCwdRef.current = cwd;
+          },
           onOsc52ReadRequest: handleOsc52ReadRequest,
+          // Autocomplete integration
+          onAutocompleteKeyEvent: (e: KeyboardEvent) => autocompleteKeyEventRef.current?.(e) ?? true,
+          onAutocompleteInput: (data: string) => autocompleteInputRef.current?.(data),
         });
 
         xtermRuntimeRef.current = runtime;
@@ -606,11 +809,11 @@ const TerminalComponent: React.FC<TerminalProps> = ({
 
     return () => {
       disposed = true;
-      if (onTerminalDataCapture && serializeAddonRef.current) {
+      if (!terminalDataCapturedRef.current && serializeAddonRef.current) {
         try {
           const terminalData = serializeAddonRef.current.serialize();
           logger.info("[Terminal] Capturing data on unmount", { sessionId, dataLength: terminalData.length });
-          onTerminalDataCapture(sessionId, terminalData);
+          handleTerminalDataCaptureOnce(sessionId, terminalData);
         } catch (err) {
           logger.warn("Failed to serialize terminal data on unmount:", err);
         }
@@ -618,7 +821,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
       teardown();
     };
     // eslint-disable-next-line react-hooks/exhaustive-deps -- Effect only runs on host.id/sessionId change, internal functions are stable
-  }, [host.id, sessionId]);
+  }, [handleTerminalDataCaptureOnce, host.id, sessionId]);
 
   // Connection timeline and timeout visuals
   useEffect(() => {
@@ -627,28 +830,6 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     // Local terminal and serial connections don't need timeout/progress UI
     if (isLocalConnection || isSerialConnection) return;
 
-    // Only show SSH-specific scripted logs for SSH connections
-    const isSSH = host.protocol !== "telnet";
-
-    let stepTimer: ReturnType<typeof setInterval> | undefined;
-    if (isSSH) {
-      const scripted = [
-        "Resolving host and keys...",
-        "Negotiating ciphers...",
-        "Exchanging keys...",
-        "Authenticating user...",
-        "Waiting for server greeting...",
-      ];
-      let idx = 0;
-      stepTimer = setInterval(() => {
-        setProgressLogs((prev) => {
-          if (idx >= scripted.length) return prev;
-          const next = scripted[idx++];
-          return prev.includes(next) ? prev : [...prev, next];
-        });
-      }, 900);
-    }
-
     setTimeLeft(CONNECTION_TIMEOUT / 1000);
     const countdown = setInterval(() => {
       setTimeLeft((prev) => (prev > 0 ? prev - 1 : 0));
@@ -671,7 +852,6 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     }, 200);
 
     return () => {
-      if (stepTimer) clearInterval(stepTimer);
       clearInterval(countdown);
       clearTimeout(timeout);
       clearInterval(prog);
@@ -679,6 +859,12 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     // eslint-disable-next-line react-hooks/exhaustive-deps -- updateStatus is a stable internal helper
   }, [status, auth.needsAuth, host.protocol, host.hostname]);
 
+  useEffect(() => {
+    if (status === "connecting") {
+      setIsDisconnectedDialogDismissed(false);
+    }
+  }, [status]);
+
   const safeFit = (options?: { force?: boolean; requireVisible?: boolean }) => {
     const fitAddon = fitAddonRef.current;
     if (!fitAddon) return;
@@ -700,6 +886,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     if (!options?.force) {
       const lastSize = lastFittedSizeRef.current;
       if (lastSize && lastSize.width === width && lastSize.height === height) {
+        autocompleteRepositionRef.current?.();
         return;
       }
     }
@@ -708,6 +895,13 @@ const TerminalComponent: React.FC<TerminalProps> = ({
       try {
         lastFittedSizeRef.current = { width, height };
         fitAddon.fit();
+        if (typeof requestAnimationFrame === "function") {
+          requestAnimationFrame(() => {
+            autocompleteRepositionRef.current?.();
+          });
+        } else {
+          autocompleteRepositionRef.current?.();
+        }
       } catch (err) {
         logger.warn("Fit failed", err);
       }
@@ -723,15 +917,20 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     }
   };
 
-  useEffect(() => {
+  // Sync xterm theme before browser paint so canvas + DOM CSS vars update in the same frame
+  useLayoutEffect(() => {
     if (termRef.current) {
-      const effectiveFontSize = host.fontSize || fontSize;
-      termRef.current.options.fontSize = effectiveFontSize;
-
       termRef.current.options.theme = {
         ...effectiveTheme.colors,
         selectionBackground: effectiveTheme.colors.selection,
       };
+    }
+  }, [effectiveTheme]);
+
+  useEffect(() => {
+    if (termRef.current) {
+      termRef.current.options.fontSize = effectiveFontSize;
+      termRef.current.options.fontFamily = resolvedFontFamily;
 
       if (terminalSettings) {
         termRef.current.options.cursorStyle = terminalSettings.cursorShape;
@@ -773,6 +972,10 @@ const TerminalComponent: React.FC<TerminalProps> = ({
           terminalSettings.drawBoldInBrightColors;
         termRef.current.options.minimumContrastRatio =
           terminalSettings.minimumContrastRatio;
+        termRef.current.options.smoothScrollDuration =
+          terminalSettings.smoothScrolling
+            ? XTERM_PERFORMANCE_CONFIG.rendering.smoothScrollDuration
+            : 0;
         termRef.current.options.scrollOnUserInput =
           shouldEnableNativeUserInputAutoScroll(terminalSettings);
         termRef.current.options.altClickMovesCursor = !terminalSettings.altAsMeta;
@@ -780,27 +983,13 @@ const TerminalComponent: React.FC<TerminalProps> = ({
         termRef.current.options.ignoreBracketedPasteMode = terminalSettings.disableBracketedPaste ?? false;
       }
 
-      setTimeout(() => safeFit({ force: true }), 50);
+      if (isVisibleRef.current) {
+        setTimeout(() => safeFit({ force: true, requireVisible: true }), 50);
+      } else {
+        lastFittedSizeRef.current = null;
+      }
     }
-  }, [fontSize, effectiveTheme, terminalSettings, host.fontSize]);
-
-  useEffect(() => {
-    if (termRef.current) {
-      const effectiveFontSize = host.fontSize || fontSize;
-      termRef.current.options.fontSize = effectiveFontSize;
-
-      const hostFontId = host.fontFamily || fontFamilyId || "menlo";
-      const fontObj = availableFonts.find((f) => f.id === hostFontId) || availableFonts[0];
-      termRef.current.options.fontFamily = fontObj.family;
-
-      termRef.current.options.theme = {
-        ...effectiveTheme.colors,
-        selectionBackground: effectiveTheme.colors.selection,
-      };
-
-      setTimeout(() => safeFit({ force: true }), 50);
-    }
-  }, [host.fontSize, host.fontFamily, host.theme, fontFamilyId, fontSize, effectiveTheme, availableFonts]);
+  }, [effectiveFontSize, resolvedFontFamily, terminalSettings]);
 
   useEffect(() => {
     if (!isVisible) return;
@@ -848,7 +1037,6 @@ const TerminalComponent: React.FC<TerminalProps> = ({
 
         if (terminalSettings && termRef.current) {
           const fontFamily = termRef.current.options?.fontFamily || "";
-          const effectiveFontSize = host.fontSize || fontSize;
           if (typeof document !== "undefined" && document.fonts?.check) {
             const weightSpec = `${terminalSettings.fontWeightBold} ${effectiveFontSize}px ${fontFamily}`;
             const resolvedBold = document.fonts.check(weightSpec)
@@ -884,7 +1072,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     return () => {
       cancelled = true;
     };
-  }, [host.id, host.fontFamily, host.fontSize, fontFamilyId, fontSize, resizeSession, sessionId, terminalSettings]);
+  }, [effectiveFontSize, resizeSession, terminalSettings]);
 
   useEffect(() => {
     if (!isVisible || !containerRef.current || !fitAddonRef.current) return;
@@ -927,6 +1115,26 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     return () => clearTimeout(timer);
   }, [inWorkspace, isVisible]);
 
+  // When search bar opens/closes, re-fit terminal and maintain scroll position
+  useEffect(() => {
+    const term = termRef.current;
+    if (!term || !fitAddonRef.current) return;
+    const buffer = term.buffer.active;
+    const wasAtBottom = buffer.viewportY >= buffer.baseY;
+    const prevViewportY = buffer.viewportY;
+    const timer = setTimeout(() => {
+      safeFit({ force: true, requireVisible: true });
+      requestAnimationFrame(() => {
+        if (wasAtBottom) {
+          term.scrollToBottom();
+        } else {
+          term.scrollToLine(prevViewportY);
+        }
+      });
+    }, 0);
+    return () => clearTimeout(timer);
+  }, [isSearchOpen]);
+
   useEffect(() => {
     const shouldAutoFocus = isVisible && termRef.current && (!inWorkspace || isFocusMode);
     if (shouldAutoFocus) {
@@ -1022,6 +1230,8 @@ const TerminalComponent: React.FC<TerminalProps> = ({
   }, [sessionId]);
 
   useEffect(() => {
+    if (!isVisible) return;
+
     let resizeTimeout: ReturnType<typeof setTimeout> | null = null;
 
     const handler = () => {
@@ -1039,7 +1249,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
       if (resizeTimeout) clearTimeout(resizeTimeout);
       window.removeEventListener("resize", handler);
     };
-  }, []);
+  }, [isVisible]);
 
   const disableBracketedPasteRef = useRef(terminalSettings?.disableBracketedPaste ?? false);
   disableBracketedPasteRef.current = terminalSettings?.disableBracketedPaste ?? false;
@@ -1047,11 +1257,43 @@ const TerminalComponent: React.FC<TerminalProps> = ({
   const scrollOnPasteRef = useRef(terminalSettings?.scrollOnPaste ?? true);
   scrollOnPasteRef.current = terminalSettings?.scrollOnPaste ?? true;
 
-  const scrollToBottomAfterProgrammaticInput = (data: string) => {
+  const scrollToBottomAfterProgrammaticInput = useCallback((data: string) => {
     if (termRef.current && shouldScrollOnTerminalInput(terminalSettingsRef.current, data)) {
       termRef.current.scrollToBottom();
     }
-  };
+  }, []);
+
+  const executeSnippetCommand = useCallback((command: string, noAutoRun?: boolean) => {
+    const term = termRef.current;
+    const id = sessionRef.current;
+    if (!term || !id) return;
+
+    let data = normalizeLineEndings(command);
+    const isMultiLine = data.includes('\n');
+    // Wrap in bracketed paste BEFORE appending \r so the Enter is sent
+    // outside the paste markers — otherwise shells treat it as pasted text
+    // instead of a submit action.
+    if (isMultiLine && term.modes.bracketedPasteMode && !disableBracketedPasteRef.current) {
+      data = wrapBracketedPaste(data);
+    }
+    if (!noAutoRun) data = `${data}\r`;
+
+    terminalBackend.writeToSession(id, data);
+    scrollToBottomAfterProgrammaticInput(data);
+    term.focus();
+  }, [scrollToBottomAfterProgrammaticInput, terminalBackend]);
+
+  // Only register the snippet executor once the terminal session is ready.
+  // Before that, TerminalLayer falls back to raw writeToSession which is the
+  // correct path for sessions that are still connecting.
+  useEffect(() => {
+    if (status !== "connected") {
+      onSnippetExecutorChange?.(sessionId, null);
+      return;
+    }
+    onSnippetExecutorChange?.(sessionId, executeSnippetCommand);
+    return () => onSnippetExecutorChange?.(sessionId, null);
+  }, [executeSnippetCommand, onSnippetExecutorChange, sessionId, status]);
 
   const terminalContextActions = useTerminalContextActions({
     termRef,
@@ -1110,6 +1352,14 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     onCloseSession?.(sessionId);
   };
 
+  const handleDismissDisconnectedDialog = () => {
+    setIsDisconnectedDialogDismissed(true);
+  };
+
+  const handleCloseDisconnectedSession = () => {
+    onCloseSession?.(sessionId);
+  };
+
   const handleHostKeyClose = () => {
     setNeedsHostKeyVerification(false);
     setPendingHostKeyInfo(null);
@@ -1149,18 +1399,31 @@ const TerminalComponent: React.FC<TerminalProps> = ({
     if (!termRef.current) return;
     cleanupSession();
     auth.resetForRetry();
+    terminalDataCapturedRef.current = false;
     hasRunStartupCommandRef.current = false;
+    setIsDisconnectedDialogDismissed(false);
     setStatus("connecting");
     setError(null);
     setProgressLogs(["Retrying secure channel..."]);
     setShowLogs(true);
-    if (host.protocol === "local" || host.hostname === "localhost") {
+    if (host.protocol === "serial") {
+      sessionStarters.startSerial(termRef.current);
+    } else if (host.protocol === "local" || host.hostname === "localhost") {
       sessionStarters.startLocal(termRef.current);
+    } else if (host.protocol === "telnet") {
+      sessionStarters.startTelnet(termRef.current);
+    } else if (host.moshEnabled) {
+      sessionStarters.startMosh(termRef.current);
     } else {
       sessionStarters.startSSH(termRef.current);
     }
   };
 
+  const shouldShowConnectionDialog = status !== "connected"
+    && !needsHostKeyVerification
+    && !((isLocalConnection || isSerialConnection) && status === "connecting")
+    && !(status === "disconnected" && isDisconnectedDialogDismissed);
+
   // Drag and drop handlers
   const handleDragEnter = (e: React.DragEvent) => {
     e.preventDefault();
@@ -1270,6 +1533,14 @@ const TerminalComponent: React.FC<TerminalProps> = ({
       : status === "connecting"
         ? "bg-amber-400"
         : "bg-rose-500";
+  const terminalPreviewVars = useMemo(() => ({
+    ['--terminal-ui-bg' as never]: `var(--terminal-preview-bg, ${effectiveTheme.colors.background})`,
+    ['--terminal-ui-fg' as never]: `var(--terminal-preview-fg, ${effectiveTheme.colors.foreground})`,
+    ['--terminal-ui-border' as never]: `var(--terminal-preview-border, color-mix(in srgb, ${effectiveTheme.colors.foreground} 8%, ${effectiveTheme.colors.background} 92%))`,
+    ['--terminal-ui-toolbar-btn' as never]: `var(--terminal-preview-toolbar-btn, color-mix(in srgb, ${effectiveTheme.colors.background} 88%, ${effectiveTheme.colors.foreground} 12%))`,
+    ['--terminal-ui-toolbar-btn-hover' as never]: `var(--terminal-preview-toolbar-btn-hover, color-mix(in srgb, ${effectiveTheme.colors.background} 78%, ${effectiveTheme.colors.foreground} 22%))`,
+    ['--terminal-ui-toolbar-btn-active' as never]: `var(--terminal-preview-toolbar-btn-active, color-mix(in srgb, ${effectiveTheme.colors.background} 68%, ${effectiveTheme.colors.foreground} 32%))`,
+  }), [effectiveTheme.colors.background, effectiveTheme.colors.foreground]);
 
   return (
     <TerminalContextMenu
@@ -1292,6 +1563,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
           "relative h-full w-full flex overflow-hidden bg-gradient-to-br from-[#050910] via-[#06101a] to-[#0b1220]",
           isComposeBarOpen && !inWorkspace && "flex-col"
         )}
+        style={terminalPreviewVars}
         onDragEnter={handleDragEnter}
         onDragOver={handleDragOver}
         onDragLeave={handleDragLeave}
@@ -1320,16 +1592,16 @@ const TerminalComponent: React.FC<TerminalProps> = ({
         )}
         <div className="absolute left-0 right-0 top-0 z-20 pointer-events-none">
           <div
-            className="flex items-center gap-1 px-2 py-0.5 backdrop-blur-md pointer-events-auto min-w-0 border-b-[0.5px]"
+            className="flex items-center gap-1 px-2 py-0.5 backdrop-blur-md pointer-events-auto min-w-0"
             style={{
-              backgroundColor: effectiveTheme.colors.background,
-              color: effectiveTheme.colors.foreground,
-              borderColor: `color-mix(in srgb, ${effectiveTheme.colors.foreground} 8%, ${effectiveTheme.colors.background} 92%)`,
-              ['--terminal-toolbar-fg' as never]: effectiveTheme.colors.foreground,
-              ['--terminal-toolbar-bg' as never]: effectiveTheme.colors.background,
-              ['--terminal-toolbar-btn' as never]: `color-mix(in srgb, ${effectiveTheme.colors.background} 88%, ${effectiveTheme.colors.foreground} 12%)`,
-              ['--terminal-toolbar-btn-hover' as never]: `color-mix(in srgb, ${effectiveTheme.colors.background} 78%, ${effectiveTheme.colors.foreground} 22%)`,
-              ['--terminal-toolbar-btn-active' as never]: `color-mix(in srgb, ${effectiveTheme.colors.background} 68%, ${effectiveTheme.colors.foreground} 32%)`,
+              backgroundColor: 'var(--terminal-ui-bg)',
+              color: 'var(--terminal-ui-fg)',
+              borderColor: 'var(--terminal-ui-border)',
+              ['--terminal-toolbar-fg' as never]: 'var(--terminal-ui-fg)',
+              ['--terminal-toolbar-bg' as never]: 'var(--terminal-ui-bg)',
+              ['--terminal-toolbar-btn' as never]: 'var(--terminal-ui-toolbar-btn)',
+              ['--terminal-toolbar-btn-hover' as never]: 'var(--terminal-ui-toolbar-btn-hover)',
+              ['--terminal-toolbar-btn-active' as never]: 'var(--terminal-ui-toolbar-btn-active)',
             }}
           >
             <div className="flex items-center gap-1 text-[11px] font-semibold">
@@ -1341,8 +1613,8 @@ const TerminalComponent: React.FC<TerminalProps> = ({
                 )}
               />
             </div>
-            {/* Server Stats Display - Linux only */}
-            {host.os === 'linux' && terminalSettings?.showServerStats && status === 'connected' && serverStats.lastUpdated && (
+            {/* Server Stats Display */}
+            {terminalSettings?.showServerStats && status === 'connected' && serverStats.lastUpdated && (
               <div className="flex items-center gap-2.5 ml-2 text-[10px] opacity-80 flex-nowrap overflow-hidden min-w-0">
                 {/* CPU with HoverCard for per-core details */}
                 <HoverCard openDelay={200} closeDelay={100}>
@@ -1389,6 +1661,24 @@ const TerminalComponent: React.FC<TerminalProps> = ({
                             </div>
                           ))}
                         </div>
+                      ) : serverStats.cpu !== null ? (
+                        <div className="flex flex-col gap-1.5 min-w-[160px]">
+                          <div className="w-full h-2 bg-muted rounded-full overflow-hidden">
+                            <div
+                              className={cn(
+                                "h-full rounded-full transition-all",
+                                serverStats.cpu >= 90 ? "bg-red-500" : serverStats.cpu >= 70 ? "bg-amber-500" : "bg-emerald-500"
+                              )}
+                              style={{ width: `${serverStats.cpu}%` }}
+                            />
+                          </div>
+                          <div className={cn(
+                            "text-center text-[11px] font-medium",
+                            serverStats.cpu >= 90 ? "text-red-400" : serverStats.cpu >= 70 ? "text-amber-400" : "text-emerald-400"
+                          )}>
+                            {serverStats.cpu}% · {serverStats.cpuCores ?? '?'} cores
+                          </div>
+                        </div>
                       ) : (
                         <div className="text-muted-foreground">{t("terminal.serverStats.noData")}</div>
                       )}
@@ -1686,7 +1976,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
 
         <div
           className="h-full flex-1 min-w-0 relative overflow-hidden pt-8"
-          style={{ backgroundColor: effectiveTheme.colors.background }}
+          style={{ backgroundColor: 'var(--terminal-ui-bg)' }}
         >
           <div
             ref={containerRef}
@@ -1694,10 +1984,34 @@ const TerminalComponent: React.FC<TerminalProps> = ({
             style={{
               top: isSearchOpen ? "64px" : "30px",
               paddingLeft: 6,
-              backgroundColor: effectiveTheme.colors.background,
+              backgroundColor: 'var(--terminal-ui-bg)',
             }}
           />
 
+          {/* Autocomplete popup — rendered via Portal to escape overflow:hidden */}
+          {isVisible && autocomplete.state.popupVisible && autocomplete.state.suggestions.length > 0 &&
+            ReactDOM.createPortal(
+              <AutocompletePopup
+                suggestions={autocomplete.state.suggestions}
+                selectedIndex={autocomplete.state.selectedIndex}
+                position={autocomplete.state.popupPosition}
+                cursorLineTop={autocomplete.state.popupCursorLineTop}
+                cursorLineBottom={autocomplete.state.popupCursorLineBottom}
+                visible={autocomplete.state.popupVisible}
+                expandUpward={autocomplete.state.expandUpward}
+                themeColors={effectiveTheme.colors}
+                onSelect={autocomplete.selectSuggestion}
+                subDirPanels={autocomplete.state.subDirPanels}
+                subDirFocusLevel={autocomplete.state.subDirFocusLevel}
+                containerRef={containerRef}
+                onRequestReposition={autocomplete.repositionPopup}
+                searchBarOffset={isSearchOpen ? 64 : 30}
+                onDismiss={autocompleteClosePopup}
+              />,
+              document.body,
+            )
+          }
+
           {needsHostKeyVerification && pendingHostKeyInfo && (
             <div className="absolute inset-0 z-30 bg-background">
               <KnownHostConfirmDialog
@@ -1734,9 +2048,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
           )}
 
           {/* Connection dialog: skip for local/serial during connecting phase, but show on error */}
-          {status !== "connected" && !needsHostKeyVerification && !(
-            (isLocalConnection || isSerialConnection) && status === "connecting"
-          ) && (
+          {shouldShowConnectionDialog && (
               <TerminalConnectionDialog
                 host={host}
                 status={status}
@@ -1747,6 +2059,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
                 showLogs={showLogs}
                 _setShowLogs={setShowLogs}
                 keys={keys}
+                onDismissDisconnected={handleDismissDisconnectedDialog}
                 authProps={{
                   authMethod: auth.authMethod,
                   setAuthMethod: auth.setAuthMethod,
@@ -1772,11 +2085,28 @@ const TerminalComponent: React.FC<TerminalProps> = ({
                   timeLeft,
                   isCancelling,
                   progressLogs,
-                  onCancel: handleCancelConnect,
+                  onCancelConnect: handleCancelConnect,
+                  onCloseSession: handleCloseDisconnectedSession,
                   onRetry: handleRetry,
                 }}
               />
             )}
+
+          {/* ZMODEM transfer progress indicator */}
+          {zmodem.active && (
+            <div className="absolute bottom-4 right-4 z-[25] pointer-events-auto">
+              <ZmodemProgressIndicator
+                transferType={zmodem.transferType}
+                filename={zmodem.filename}
+                transferred={zmodem.transferred}
+                total={zmodem.total}
+                fileIndex={zmodem.fileIndex}
+                fileCount={zmodem.fileCount}
+                finalizing={zmodem.finalizing}
+                onCancel={zmodem.cancel}
+              />
+            </div>
+          )}
         </div>
 
         {/* Compose Bar (solo sessions only; workspace uses TerminalLayer's global bar) */}

components/TextEditorModal.tsx

@@ -151,6 +151,7 @@ export const TextEditorModal: React.FC<TextEditorModalProps> = ({
   // Ref to store the latest save function to avoid stale closure in keyboard shortcut
   const handleSaveRef = useRef<() => Promise<void>>(() => Promise.resolve());
   const handlePasteRef = useRef<() => Promise<void>>(() => Promise.resolve());
+  const readClipboardTextRef = useRef<() => Promise<string | null>>(() => Promise.resolve(null));
 
   // Track theme from document.documentElement class (syncs with app theme)
   const [isDarkTheme, setIsDarkTheme] = useState(() =>
@@ -254,6 +255,10 @@ export const TextEditorModal: React.FC<TextEditorModalProps> = ({
     }
   }, [readClipboardTextFromBridge]);
 
+  useEffect(() => {
+    readClipboardTextRef.current = readClipboardText;
+  }, [readClipboardText]);
+
   const handlePaste = useCallback(async () => {
     const editor = editorRef.current;
     if (!editor) return;
@@ -316,7 +321,30 @@ export const TextEditorModal: React.FC<TextEditorModalProps> = ({
     });
 
     // Fallback paste path for Electron environments where Monaco paste can fail.
+    // Skip custom paste when focus is inside the find/replace widget so that
+    // its input fields receive the pasted text via default browser behavior.
     editor.addCommand(monaco.KeyMod.CtrlCmd | monaco.KeyCode.KeyV, () => {
+      const active = document.activeElement;
+      if (active?.closest('.find-widget')) {
+        // Read clipboard and insert into the find/replace input field.
+        void (async () => {
+          try {
+            const text = await readClipboardTextRef.current();
+            if (!text) return;
+            // Monaco find widget inputs are <textarea> elements inside .monaco-inputbox
+            if (active instanceof HTMLTextAreaElement || active instanceof HTMLInputElement) {
+              const start = active.selectionStart ?? active.value.length;
+              const end = active.selectionEnd ?? active.value.length;
+              active.focus();
+              active.setSelectionRange(start, end);
+              document.execCommand('insertText', false, text);
+            }
+          } catch {
+            // Ignore – paste simply won't work
+          }
+        })();
+        return;
+      }
       void handlePasteRef.current();
     });
   }, []);

components/ThemeList.tsx

@@ -0,0 +1,124 @@
+/**
+ * Shared theme list component used by both ThemeSelectPanel and ThemeSelectModal
+ */
+import React, { memo, useMemo } from 'react';
+import { Check } from 'lucide-react';
+import { useI18n } from '../application/i18n/I18nProvider';
+import { TERMINAL_THEMES } from '../infrastructure/config/terminalThemes';
+import { useCustomThemes } from '../application/state/customThemeStore';
+import { cn } from '../lib/utils';
+import { TerminalTheme } from '../types';
+
+// Memoized theme item component
+export const ThemeItem = memo(({
+    theme,
+    isSelected,
+    onSelect
+}: {
+    theme: TerminalTheme;
+    isSelected: boolean;
+    onSelect: (id: string) => void;
+}) => (
+    <button
+        onClick={() => onSelect(theme.id)}
+        className={cn(
+            'w-full flex items-center gap-3 px-3 py-2.5 text-left transition-all',
+            isSelected
+                ? 'bg-primary/10'
+                : 'hover:bg-muted'
+        )}
+    >
+        {/* Color swatch preview */}
+        <div
+            className="w-12 h-8 rounded-[4px] flex-shrink-0 flex flex-col justify-center items-start pl-1.5 gap-0.5 border border-border/50"
+            style={{ backgroundColor: theme.colors.background }}
+        >
+            <div className="h-1 w-4 rounded-full" style={{ backgroundColor: theme.colors.green }} />
+            <div className="h-1 w-6 rounded-full" style={{ backgroundColor: theme.colors.blue }} />
+            <div className="h-1 w-3 rounded-full" style={{ backgroundColor: theme.colors.yellow }} />
+        </div>
+        <div className="flex-1 min-w-0">
+            <div className={cn('text-sm font-medium truncate', isSelected ? 'text-primary' : 'text-foreground')}>
+                {theme.name}
+            </div>
+            <div className="text-[10px] text-muted-foreground capitalize">{theme.type}</div>
+        </div>
+        {isSelected && (
+            <Check size={16} className="text-primary flex-shrink-0" />
+        )}
+    </button>
+));
+ThemeItem.displayName = 'ThemeItem';
+
+interface ThemeListProps {
+    selectedThemeId: string;
+    onSelect: (themeId: string) => void;
+}
+
+export const ThemeList: React.FC<ThemeListProps> = ({ selectedThemeId, onSelect }) => {
+    const { t } = useI18n();
+    const customThemes = useCustomThemes();
+
+    const { darkThemes, lightThemes } = useMemo(() => {
+        const dark = TERMINAL_THEMES.filter(t => t.type === 'dark');
+        const light = TERMINAL_THEMES.filter(t => t.type === 'light');
+        return { darkThemes: dark, lightThemes: light };
+    }, []);
+
+    return (
+        <>
+            {/* Dark Themes Section */}
+            <div className="mb-4">
+                <div className="text-[10px] uppercase tracking-wider text-muted-foreground mb-2 font-semibold px-3">
+                    {t('settings.terminal.themeModal.darkThemes')}
+                </div>
+                <div className="space-y-1">
+                    {darkThemes.map(theme => (
+                        <ThemeItem
+                            key={theme.id}
+                            theme={theme}
+                            isSelected={selectedThemeId === theme.id}
+                            onSelect={onSelect}
+                        />
+                    ))}
+                </div>
+            </div>
+
+            {/* Light Themes Section */}
+            <div>
+                <div className="text-[10px] uppercase tracking-wider text-muted-foreground mb-2 font-semibold px-3">
+                    {t('settings.terminal.themeModal.lightThemes')}
+                </div>
+                <div className="space-y-1">
+                    {lightThemes.map(theme => (
+                        <ThemeItem
+                            key={theme.id}
+                            theme={theme}
+                            isSelected={selectedThemeId === theme.id}
+                            onSelect={onSelect}
+                        />
+                    ))}
+                </div>
+            </div>
+
+            {/* Custom Themes Section */}
+            {customThemes.length > 0 && (
+                <div className="mt-4">
+                    <div className="text-[10px] uppercase tracking-wider text-muted-foreground mb-2 font-semibold px-3">
+                        {t('terminal.customTheme.section')}
+                    </div>
+                    <div className="space-y-1">
+                        {customThemes.map(theme => (
+                            <ThemeItem
+                                key={theme.id}
+                                theme={theme}
+                                isSelected={selectedThemeId === theme.id}
+                                onSelect={onSelect}
+                            />
+                        ))}
+                    </div>
+                </div>
+            )}
+        </>
+    );
+};

components/ThemeSelectPanel.tsx

@@ -1,13 +1,10 @@
-import React, { useMemo, useState } from 'react';
-import { TERMINAL_THEMES } from '../infrastructure/config/terminalThemes';
-import { useCustomThemes } from '../application/state/customThemeStore';
-import { cn } from '../lib/utils';
-import { TerminalTheme } from '../types';
+import React from 'react';
 import {
     AsidePanel,
     AsidePanelContent,
 } from './ui/aside-panel';
 import { ScrollArea } from './ui/scroll-area';
+import { ThemeList } from './ThemeList';
 
 interface ThemeSelectPanelProps {
     open: boolean;
@@ -18,40 +15,6 @@ interface ThemeSelectPanelProps {
     showBackButton?: boolean;
 }
 
-// Mini terminal preview component
-const TerminalPreview: React.FC<{ theme: TerminalTheme; isSelected: boolean }> = ({
-    theme,
-    isSelected
-}) => {
-    return (
-        <div
-            className={cn(
-                "w-16 h-10 rounded-md overflow-hidden border-2 flex-shrink-0",
-                isSelected ? "border-primary" : "border-transparent"
-            )}
-            style={{ backgroundColor: theme.colors.background }}
-        >
-            <div className="p-1 text-[4px] font-mono leading-tight" style={{ color: theme.colors.foreground }}>
-                <div>
-                    <span style={{ color: theme.colors.green }}>$</span>{' '}
-                    <span style={{ color: theme.colors.cyan }}>ls</span>
-                </div>
-                <div className="flex gap-0.5 flex-wrap">
-                    <span style={{ color: theme.colors.blue }}>dir/</span>
-                    <span style={{ color: theme.colors.green }}>file</span>
-                </div>
-                <div>
-                    <span style={{ color: theme.colors.green }}>$</span>{' '}
-                    <span
-                        className="inline-block w-1 h-1.5"
-                        style={{ backgroundColor: theme.colors.cursor }}
-                    />
-                </div>
-            </div>
-        </div>
-    );
-};
-
 const ThemeSelectPanel: React.FC<ThemeSelectPanelProps> = ({
     open,
     selectedThemeId,
@@ -60,51 +23,6 @@ const ThemeSelectPanel: React.FC<ThemeSelectPanelProps> = ({
     onBack,
     showBackButton = true,
 }) => {
-    // Reserved for future hover preview feature
-    const [_hoveredThemeId, setHoveredThemeId] = useState<string | null>(null);
-
-    const customThemes = useCustomThemes();
-
-    // All themes combined
-    const allThemes = useMemo(() => {
-        return [...TERMINAL_THEMES, ...customThemes];
-    }, [customThemes]);
-
-    const renderThemeItem = (theme: TerminalTheme) => {
-        const isSelected = theme.id === selectedThemeId;
-
-        return (
-            <button
-                key={theme.id}
-                className={cn(
-                    "w-full flex items-center gap-3 px-3 py-2.5 rounded-lg transition-colors text-left",
-                    isSelected
-                        ? "bg-primary/10"
-                        : "hover:bg-secondary/50"
-                )}
-                onClick={() => onSelect(theme.id)}
-                onMouseEnter={() => setHoveredThemeId(theme.id)}
-                onMouseLeave={() => setHoveredThemeId(null)}
-            >
-                <TerminalPreview theme={theme} isSelected={isSelected} />
-                <div className="flex-1 min-w-0">
-                    <div className={cn(
-                        "text-sm font-medium truncate",
-                        isSelected && "text-primary"
-                    )}>
-                        {theme.name}
-                    </div>
-                    {theme.id === 'netcatty-dark' && (
-                        <div className="text-xs text-muted-foreground">Default</div>
-                    )}
-                    {theme.id === 'netcatty-light' && (
-                        <div className="text-xs text-muted-foreground">Light mode</div>
-                    )}
-                </div>
-            </button>
-        );
-    };
-
     return (
         <AsidePanel
             open={open}
@@ -116,8 +34,10 @@ const ThemeSelectPanel: React.FC<ThemeSelectPanelProps> = ({
             <AsidePanelContent className="p-0">
                 <ScrollArea className="h-full">
                     <div className="py-2">
-                        {/* All themes in a single list */}
-                        {allThemes.map(renderThemeItem)}
+                        <ThemeList
+                            selectedThemeId={selectedThemeId || ''}
+                            onSelect={onSelect}
+                        />
                     </div>
                 </ScrollArea>
             </AsidePanelContent>

components/TopTabs.tsx

@@ -1,10 +1,12 @@
-import { Bell, Copy, FileText, Folder, LayoutGrid, Minus, Moon, MoreHorizontal, Plus, Server, Shield, Sparkles, Square, Sun, TerminalSquare, Usb, X } from 'lucide-react';
+import { Bell, Copy, FileText, Folder, FolderLock, LayoutGrid, Minus, Moon, MoreHorizontal, Plus, Server, Sparkles, Square, Sun, TerminalSquare, Usb, X } from 'lucide-react';
 import React, { memo, useCallback, useEffect, useLayoutEffect, useMemo, useRef, useState } from 'react';
 import { activeTabStore, useActiveTabId } from '../application/state/activeTabStore';
+import { buildWorkspaceActivityMap } from '../application/state/sessionActivity';
+import { useSessionActivityMap } from '../application/state/sessionActivityStore';
 import { LogView } from '../application/state/useSessionState';
 import { useWindowControls } from '../application/state/useWindowControls';
 import { useI18n } from '../application/i18n/I18nProvider';
-import { normalizeDistroId } from '../domain/host';
+import { getEffectiveHostDistro } from '../domain/host';
 import { cn } from '../lib/utils';
 import { Host, TerminalSession, Workspace } from '../types';
 import { DISTRO_LOGOS, DISTRO_COLORS } from './DistroAvatar';
@@ -36,6 +38,7 @@ interface TopTabsProps {
   onToggleTheme: () => void;
   onOpenSettings: () => void;
   onSyncNow?: () => Promise<void>;
+  isImmersiveActive?: boolean;
   onStartSessionDrag: (sessionId: string) => void;
   onEndSessionDrag: () => void;
   onReorderTabs: (draggedId: string, targetId: string, position: 'before' | 'after') => void;
@@ -54,7 +57,7 @@ const localOsId = (() => {
 const SessionTabIcon: React.FC<{ host: Host | undefined; isActive: boolean; protocol?: string }> = memo(({ host, isActive, protocol }) => {
   const boxBase = "shrink-0 h-4 w-4 rounded flex items-center justify-center";
   const iconSize = "h-2.5 w-2.5";
-  const fallbackIcon = cn(iconSize, isActive ? "text-accent" : "text-muted-foreground");
+  const fallbackStyle = { color: isActive ? 'var(--top-tabs-accent, hsl(var(--accent)))' : 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' };
 
   // Serial protocol → USB icon
   if (protocol === 'serial' || host?.protocol === 'serial') {
@@ -81,7 +84,7 @@ const SessionTabIcon: React.FC<{ host: Host | undefined; isActive: boolean; prot
       );
     }
     return (
-      <div className={cn(boxBase, "bg-primary/15 text-primary")}>
+      <div className={boxBase} style={{ backgroundColor: 'color-mix(in srgb, var(--top-tabs-accent, hsl(var(--accent))) 15%, transparent)', color: 'var(--top-tabs-accent, hsl(var(--accent)))' }}>
         <TerminalSquare className={iconSize} />
       </div>
     );
@@ -89,7 +92,7 @@ const SessionTabIcon: React.FC<{ host: Host | undefined; isActive: boolean; prot
 
   // Try distro logo with brand background color
   if (host) {
-    const distro = normalizeDistroId(host.distro) || (host.distro || '').toLowerCase();
+    const distro = getEffectiveHostDistro(host);
     const logo = DISTRO_LOGOS[distro];
     if (logo) {
       const bg = DISTRO_COLORS[distro] || DISTRO_COLORS.default;
@@ -97,7 +100,7 @@ const SessionTabIcon: React.FC<{ host: Host | undefined; isActive: boolean; prot
         <div className={cn(boxBase, bg)}>
           <img
             src={logo}
-            alt={host.distro || host.os}
+            alt={distro || host.os}
             className={cn(iconSize, "object-contain invert brightness-0")}
           />
         </div>
@@ -108,22 +111,33 @@ const SessionTabIcon: React.FC<{ host: Host | undefined; isActive: boolean; prot
   // Fallback: generic server icon for remote, terminal for unknown
   if (host && host.protocol !== 'local') {
     return (
-      <div className={cn(boxBase, "bg-primary/15 text-primary")}>
+      <div className={boxBase} style={{ backgroundColor: 'color-mix(in srgb, var(--top-tabs-accent, hsl(var(--accent))) 15%, transparent)', color: 'var(--top-tabs-accent, hsl(var(--accent)))' }}>
         <Server className={iconSize} />
       </div>
     );
   }
-  return <TerminalSquare className={fallbackIcon} />;
+  return <TerminalSquare className={iconSize} style={fallbackStyle} />;
 });
 SessionTabIcon.displayName = 'SessionTabIcon';
 
-const sessionStatusDot = (status: TerminalSession['status']) => {
+const sessionStatusDot = (status: TerminalSession['status'], hasActivity: boolean) => {
   const tone = status === 'connected'
     ? "bg-emerald-400"
     : status === 'connecting'
       ? "bg-amber-400"
       : "bg-rose-500";
-  return <span className={cn("inline-block h-2 w-2 rounded-full ring-2 ring-background/60", tone)} />;
+  return (
+    <span className="relative inline-flex h-2 w-2 shrink-0 items-center justify-center">
+      <span
+        className={cn(
+          "relative inline-block h-2 w-2 rounded-full ring-2",
+          tone,
+          hasActivity && "session-activity-dot",
+        )}
+        style={{ boxShadow: '0 0 0 2px color-mix(in srgb, var(--top-tabs-active-bg, hsl(var(--background))) 60%, transparent)' }}
+      />
+    </span>
+  );
 };
 
 // Custom window controls for Windows/Linux (frameless window)
@@ -167,14 +181,16 @@ const WindowControls: React.FC = memo(() => {
     <div className="flex items-center app-drag h-full">
       <button
         onClick={handleMinimize}
-        className="h-full w-10 flex items-center justify-center text-muted-foreground hover:bg-foreground/10 hover:text-foreground transition-all duration-150 app-no-drag"
+        className="h-full w-10 flex items-center justify-center transition-all duration-150 app-no-drag"
+        style={{ color: 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}
         title="Minimize"
       >
         <Minus size={16} />
       </button>
       <button
         onClick={handleMaximize}
-        className="h-full w-10 flex items-center justify-center text-muted-foreground hover:bg-foreground/10 hover:text-foreground transition-all duration-150 app-no-drag"
+        className="h-full w-10 flex items-center justify-center transition-all duration-150 app-no-drag"
+        style={{ color: 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}
         title={isMaximized ? "Restore" : "Maximize"}
       >
         {isMaximized ? (
@@ -217,6 +233,7 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
   onToggleTheme,
   onOpenSettings,
   onSyncNow,
+  isImmersiveActive,
   onStartSessionDrag,
   onEndSessionDrag,
   onReorderTabs,
@@ -225,6 +242,7 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
   // Subscribe to activeTabId from external store
   const { maximize, isFullscreen, onFullscreenChanged } = useWindowControls();
   const activeTabId = useActiveTabId();
+  const sessionActivityMap = useSessionActivityMap();
   const isVaultActive = activeTabId === 'vault';
   const isSftpActive = activeTabId === 'sftp';
   const onSelectTab = activeTabStore.setActiveTabId;
@@ -328,6 +346,10 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
     return map;
   }, [hosts]);
 
+  const workspaceActivityMap = useMemo(() => {
+    return buildWorkspaceActivityMap(sessions, sessionActivityMap);
+  }, [sessionActivityMap, sessions]);
+
   // Pre-compute session counts per workspace for O(1) access
   const workspacePaneCounts = useMemo(() => {
     const counts = new Map<string, number>();
@@ -451,6 +473,7 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
 
       if (item.type === 'session') {
         const session = item.session;
+        const hasActivity = !!sessionActivityMap[session.id];
         const isBeingDragged = draggingSessionId === session.id;
         const shiftStyle = tabShiftStyles[session.id] || {};
         const showDropIndicatorBefore = dropIndicator?.tabId === session.id && dropIndicator.position === 'before';
@@ -470,30 +493,56 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
                 onDrop={(e) => handleTabDrop(e, session.id)}
                 className={cn(
                   "relative h-7 pl-3 pr-2 min-w-[140px] max-w-[240px] rounded-none text-xs font-semibold cursor-pointer flex items-center justify-between gap-2 app-no-drag flex-shrink-0",
-                  "transition-all duration-150",
-                  activeTabId === session.id
-                    ? "bg-background text-foreground"
-                    : "text-muted-foreground hover:bg-background/40 hover:text-foreground",
+                  "transition-transform duration-150",
                   isBeingDragged && isDraggingForReorder ? "opacity-40 scale-95" : ""
                 )}
-                style={shiftStyle}
+                style={{
+                  ...shiftStyle,
+                  backgroundColor: activeTabId === session.id
+                    ? 'var(--top-tabs-active-bg, hsl(var(--background)))'
+                    : 'transparent',
+                  color: activeTabId === session.id
+                    ? 'var(--top-tabs-fg, hsl(var(--foreground)))'
+                    : 'var(--top-tabs-muted, hsl(var(--muted-foreground)))',
+                }}
+                onMouseEnter={(e) => {
+                  if (activeTabId !== session.id) {
+                    e.currentTarget.style.backgroundColor = 'color-mix(in srgb, var(--top-tabs-active-bg, hsl(var(--background))) 40%, transparent)';
+                    e.currentTarget.style.color = 'var(--top-tabs-fg, hsl(var(--foreground)))';
+                  }
+                }}
+                onMouseLeave={(e) => {
+                  if (activeTabId !== session.id) {
+                    e.currentTarget.style.backgroundColor = 'transparent';
+                    e.currentTarget.style.color = 'var(--top-tabs-muted, hsl(var(--muted-foreground)))';
+                  }
+                }}
               >
                 {/* Active tab top accent line */}
                 {activeTabId === session.id && (
-                  <div className="absolute top-0 left-0 right-0 h-[2px] bg-accent" />
+                  <div
+                    className="absolute top-0 left-0 right-0 h-[2px]"
+                    style={{ backgroundColor: 'hsl(var(--primary))' }}
+                  />
                 )}
                 {/* Drop indicator line - before */}
                 {showDropIndicatorBefore && isDraggingForReorder && (
-                  <div className="absolute -left-0.5 top-1 bottom-1 w-0.5 bg-primary rounded-full shadow-[0_0_8px_2px] shadow-primary/50 animate-pulse" />
+                  <div
+                    className="absolute -left-0.5 top-1 bottom-1 w-0.5 rounded-full animate-pulse"
+                    style={{ backgroundColor: 'var(--top-tabs-accent, hsl(var(--accent)))', boxShadow: '0 0 8px 2px color-mix(in srgb, var(--top-tabs-accent, hsl(var(--accent))) 50%, transparent)' }}
+                  />
                 )}
                 {/* Drop indicator line - after */}
                 {showDropIndicatorAfter && isDraggingForReorder && (
-                  <div className="absolute -right-0.5 top-1 bottom-1 w-0.5 bg-primary rounded-full shadow-[0_0_8px_2px] shadow-primary/50 animate-pulse" />
+                  <div
+                    className="absolute -right-0.5 top-1 bottom-1 w-0.5 rounded-full animate-pulse"
+                    style={{ backgroundColor: 'var(--top-tabs-accent, hsl(var(--accent)))', boxShadow: '0 0 8px 2px color-mix(in srgb, var(--top-tabs-accent, hsl(var(--accent))) 50%, transparent)' }}
+                  />
                 )}
                 <div className="flex items-center gap-2 min-w-0 flex-1">
                   <SessionTabIcon host={hostMap.get(session.hostId)} isActive={activeTabId === session.id} protocol={session.protocol} />
                   <span className="truncate">{session.hostLabel}</span>
-                  <div className="flex-shrink-0">{sessionStatusDot(session.status)}</div>
+                  <div className="flex-shrink-0">{sessionStatusDot(session.status, hasActivity)}</div>
                 </div>
                 <button
                   onClick={(e) => onCloseSession(session.id, e)}
@@ -522,6 +571,7 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
       if (item.type === 'workspace') {
         const workspace = item.workspace;
         const paneCount = item.paneCount;
+        const hasActivity = !!workspaceActivityMap.get(workspace.id);
         const isActive = activeTabId === workspace.id;
         const isBeingDragged = draggingSessionId === workspace.id;
         const shiftStyle = tabShiftStyles[workspace.id] || {};
@@ -542,32 +592,71 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
                 onDrop={(e) => handleTabDrop(e, workspace.id)}
                 className={cn(
                   "relative h-7 pl-3 pr-2 min-w-[150px] max-w-[260px] rounded-none text-xs font-semibold cursor-pointer flex items-center justify-between gap-2 app-no-drag flex-shrink-0",
-                  "transition-all duration-150",
-                  isActive
-                    ? "bg-background text-foreground"
-                    : "text-muted-foreground hover:bg-background/40 hover:text-foreground",
+                  "transition-transform duration-150",
                   isBeingDragged && isDraggingForReorder ? "opacity-40 scale-95" : ""
                 )}
-                style={shiftStyle}
+                style={{
+                  ...shiftStyle,
+                  backgroundColor: isActive
+                    ? 'var(--top-tabs-active-bg, hsl(var(--background)))'
+                    : 'transparent',
+                  color: isActive
+                    ? 'var(--top-tabs-fg, hsl(var(--foreground)))'
+                    : 'var(--top-tabs-muted, hsl(var(--muted-foreground)))',
+                }}
+                onMouseEnter={(e) => {
+                  if (!isActive) {
+                    e.currentTarget.style.backgroundColor = 'color-mix(in srgb, var(--top-tabs-active-bg, hsl(var(--background))) 40%, transparent)';
+                    e.currentTarget.style.color = 'var(--top-tabs-fg, hsl(var(--foreground)))';
+                  }
+                }}
+                onMouseLeave={(e) => {
+                  if (!isActive) {
+                    e.currentTarget.style.backgroundColor = 'transparent';
+                    e.currentTarget.style.color = 'var(--top-tabs-muted, hsl(var(--muted-foreground)))';
+                  }
+                }}
               >
                 {/* Active tab top accent line */}
                 {isActive && (
-                  <div className="absolute top-0 left-0 right-0 h-[2px] bg-accent" />
+                  <div
+                    className="absolute top-0 left-0 right-0 h-[2px]"
+                    style={{ backgroundColor: 'hsl(var(--primary))' }}
+                  />
                 )}
                 {/* Drop indicator line - before */}
                 {showDropIndicatorBefore && isDraggingForReorder && (
-                  <div className="absolute -left-0.5 top-1 bottom-1 w-0.5 bg-primary rounded-full shadow-[0_0_8px_2px] shadow-primary/50 animate-pulse" />
+                  <div
+                    className="absolute -left-0.5 top-1 bottom-1 w-0.5 rounded-full animate-pulse"
+                    style={{ backgroundColor: 'var(--top-tabs-accent, hsl(var(--accent)))', boxShadow: '0 0 8px 2px color-mix(in srgb, var(--top-tabs-accent, hsl(var(--accent))) 50%, transparent)' }}
+                  />
                 )}
                 {/* Drop indicator line - after */}
                 {showDropIndicatorAfter && isDraggingForReorder && (
-                  <div className="absolute -right-0.5 top-1 bottom-1 w-0.5 bg-primary rounded-full shadow-[0_0_8px_2px] shadow-primary/50 animate-pulse" />
+                  <div
+                    className="absolute -right-0.5 top-1 bottom-1 w-0.5 rounded-full animate-pulse"
+                    style={{ backgroundColor: 'var(--top-tabs-accent, hsl(var(--accent)))', boxShadow: '0 0 8px 2px color-mix(in srgb, var(--top-tabs-accent, hsl(var(--accent))) 50%, transparent)' }}
+                  />
                 )}
                 <div className="flex items-center gap-2 truncate">
-                  <LayoutGrid size={14} className={cn("shrink-0", isActive ? "text-primary" : "text-muted-foreground")} />
+                  <LayoutGrid
+                    size={14}
+                    className="shrink-0"
+                    style={{ color: isActive ? 'var(--top-tabs-accent, hsl(var(--accent)))' : 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}
+                  />
                   <span className="truncate">{workspace.title}</span>
                 </div>
-                <div className="text-[10px] px-1.5 py-0.5 rounded-full border border-border/70 bg-background/60 min-w-[22px] text-center">
-                  {paneCount}
+                <div className="flex items-center gap-1.5 shrink-0">
+                  {hasActivity && sessionStatusDot('connected', true)}
+                  <div
+                    className="text-[10px] px-1.5 py-0.5 rounded-full min-w-[22px] text-center"
+                    style={{
+                      border: '1px solid color-mix(in srgb, var(--top-tabs-fg, hsl(var(--foreground))) 18%, transparent)',
+                      backgroundColor: 'color-mix(in srgb, var(--top-tabs-active-bg, hsl(var(--background))) 60%, transparent)',
+                    }}
+                  >
+                    {paneCount}
+                  </div>
                 </div>
               </div>
             </ContextMenuTrigger>
@@ -595,18 +684,41 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
             onClick={() => onSelectTab(logView.id)}
             className={cn(
               "relative h-7 pl-3 pr-2 min-w-[140px] max-w-[240px] rounded-none text-xs font-semibold cursor-pointer flex items-center justify-between gap-2 app-no-drag flex-shrink-0",
-              "transition-colors duration-150",
-              isActive
-                ? "bg-background text-foreground"
-                : "text-muted-foreground hover:bg-background/40 hover:text-foreground"
             )}
+            style={{
+              backgroundColor: isActive
+                ? 'var(--top-tabs-active-bg, hsl(var(--background)))'
+                : 'transparent',
+              color: isActive
+                ? 'var(--top-tabs-fg, hsl(var(--foreground)))'
+                : 'var(--top-tabs-muted, hsl(var(--muted-foreground)))',
+            }}
+            onMouseEnter={(e) => {
+              if (!isActive) {
+                e.currentTarget.style.backgroundColor = 'color-mix(in srgb, var(--top-tabs-active-bg, hsl(var(--background))) 40%, transparent)';
+                e.currentTarget.style.color = 'var(--top-tabs-fg, hsl(var(--foreground)))';
+              }
+            }}
+            onMouseLeave={(e) => {
+              if (!isActive) {
+                e.currentTarget.style.backgroundColor = 'transparent';
+                e.currentTarget.style.color = 'var(--top-tabs-muted, hsl(var(--muted-foreground)))';
+              }
+            }}
           >
             {/* Active tab top accent line */}
             {isActive && (
-              <div className="absolute top-0 left-0 right-0 h-[2px] bg-accent" />
+              <div
+                className="absolute top-0 left-0 right-0 h-[2px]"
+                style={{ backgroundColor: 'var(--top-tabs-fg, hsl(var(--foreground)))' }}
+              />
             )}
             <div className="flex items-center gap-2 min-w-0 flex-1">
-              <FileText size={14} className={cn("shrink-0", isActive ? "text-accent" : "text-muted-foreground")} />
+              <FileText
+                size={14}
+                className="shrink-0"
+                style={{ color: isActive ? 'var(--top-tabs-accent, hsl(var(--accent)))' : 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}
+              />
               <span className="truncate">
                 {t('tabs.logPrefix')} {isLocal ? t('tabs.logLocal') : logView.log.hostname}
               </span>
@@ -640,8 +752,13 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
 
   return (
     <div
+      data-top-tabs-root
       className="relative w-full bg-secondary app-drag"
-      style={dragRegionNoSelect}
+      style={{
+        ...dragRegionNoSelect,
+        backgroundColor: 'var(--top-tabs-bg, hsl(var(--secondary)))',
+        color: 'var(--top-tabs-fg, hsl(var(--foreground)))',
+      }}
       onDoubleClick={handleTitleBarDoubleClick}
     >
       {/* Always-on drag stripe so the window can be moved even when tabs fill the bar */}
@@ -656,25 +773,62 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
             onClick={() => onSelectTab('vault')}
             className={cn(
               "relative h-7 px-3 rounded text-xs font-semibold cursor-pointer flex items-center gap-2 app-no-drag",
-              "transition-colors duration-150",
-              isVaultActive
-                ? "bg-foreground/10 text-foreground"
-                : "text-muted-foreground hover:bg-background/40 hover:text-foreground"
             )}
+            style={{
+              backgroundColor: isVaultActive
+                ? 'var(--top-tabs-active-bg, hsl(var(--background)))'
+                : 'transparent',
+              color: isVaultActive
+                ? 'var(--top-tabs-fg, hsl(var(--foreground)))'
+                : 'var(--top-tabs-muted, hsl(var(--muted-foreground)))',
+            }}
+            onMouseEnter={(e) => {
+              if (!isVaultActive) {
+                e.currentTarget.style.backgroundColor = 'color-mix(in srgb, var(--top-tabs-active-bg, hsl(var(--background))) 40%, transparent)';
+                e.currentTarget.style.color = 'var(--top-tabs-fg, hsl(var(--foreground)))';
+              }
+            }}
+            onMouseLeave={(e) => {
+              if (!isVaultActive) {
+                e.currentTarget.style.backgroundColor = 'transparent';
+                e.currentTarget.style.color = 'var(--top-tabs-muted, hsl(var(--muted-foreground)))';
+              }
+            }}
           >
-            <Shield size={14} /> Vaults
+            <FolderLock size={14} /> Vaults
           </div>
           <div
             onClick={() => onSelectTab('sftp')}
             className={cn(
               "relative h-7 px-3 rounded-none text-xs font-semibold cursor-pointer flex items-center gap-2 app-no-drag",
-              "transition-colors duration-150",
-              isSftpActive
-                ? "bg-background text-foreground"
-                : "text-muted-foreground hover:bg-background/40 hover:text-foreground"
             )}
+            style={{
+              backgroundColor: isSftpActive
+                ? 'var(--top-tabs-active-bg, hsl(var(--background)))'
+                : 'transparent',
+              color: isSftpActive
+                ? 'var(--top-tabs-fg, hsl(var(--foreground)))'
+                : 'var(--top-tabs-muted, hsl(var(--muted-foreground)))',
+            }}
+            onMouseEnter={(e) => {
+              if (!isSftpActive) {
+                e.currentTarget.style.backgroundColor = 'color-mix(in srgb, var(--top-tabs-active-bg, hsl(var(--background))) 40%, transparent)';
+                e.currentTarget.style.color = 'var(--top-tabs-fg, hsl(var(--foreground)))';
+              }
+            }}
+            onMouseLeave={(e) => {
+              if (!isSftpActive) {
+                e.currentTarget.style.backgroundColor = 'transparent';
+                e.currentTarget.style.color = 'var(--top-tabs-muted, hsl(var(--muted-foreground)))';
+              }
+            }}
           >
-            {isSftpActive && <div className="absolute top-0 left-0 right-0 h-[2px] bg-accent" />}
+            {isSftpActive && (
+              <div
+                className="absolute top-0 left-0 right-0 h-[2px]"
+                style={{ backgroundColor: 'var(--top-tabs-accent, hsl(var(--accent)))' }}
+              />
+            )}
             <Folder size={14} /> SFTP
           </div>
         </div>
@@ -696,7 +850,7 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
           {canScrollLeft && (
             <div
               className="absolute left-0 top-0 bottom-0 w-8 pointer-events-none z-10"
-              style={{ background: 'linear-gradient(to right, hsl(var(--secondary) / 0.9), transparent)' }}
+              style={{ background: 'linear-gradient(to right, var(--top-tabs-bg, hsl(var(--secondary))), transparent)' }}
             />
           )}
 
@@ -713,6 +867,7 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
                 variant="ghost"
                 size="icon"
                 className="h-7 w-7 flex-shrink-0 app-no-drag mb-0 rounded-none"
+                style={{ color: 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}
                 onClick={onOpenQuickSwitcher}
                 title="Open quick switcher"
               >
@@ -727,7 +882,7 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
           {canScrollRight && (
             <div
               className="absolute right-0 top-0 bottom-0 w-8 pointer-events-none z-10"
-              style={{ background: 'linear-gradient(to left, hsl(var(--secondary) / 0.9), transparent)' }}
+              style={{ background: 'linear-gradient(to left, var(--top-tabs-bg, hsl(var(--secondary))), transparent)' }}
             />
           )}
         </div>
@@ -738,6 +893,7 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
             variant="ghost"
             size="icon"
             className="h-7 w-7 flex-shrink-0 app-no-drag self-end rounded-none"
+            style={{ color: 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}
             onClick={onOpenQuickSwitcher}
             title="More tabs"
           >
@@ -750,21 +906,24 @@ const TopTabsInner: React.FC<TopTabsProps> = ({
           <Button
             variant="ghost"
             size="icon"
-            className="h-6 w-6 text-muted-foreground hover:text-foreground app-no-drag"
+            className="h-6 w-6 app-no-drag"
+            style={{ color: 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}
             title="AI Assistant"
             onClick={() => window.dispatchEvent(new CustomEvent('netcatty:toggle-ai-panel'))}
           >
             <Sparkles size={16} />
           </Button>
-          <Button variant="ghost" size="icon" className="h-6 w-6 text-muted-foreground hover:text-foreground app-no-drag">
+          <Button variant="ghost" size="icon" className="h-6 w-6 app-no-drag" style={{ color: 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}>
             <Bell size={16} />
           </Button>
           <SyncStatusButton onOpenSettings={onOpenSettings} onSyncNow={onSyncNow} />
           <Button
             variant="ghost"
             size="icon"
-            className="h-6 w-6 text-muted-foreground hover:text-foreground app-no-drag"
+            className="h-6 w-6 app-no-drag"
+            style={{ color: 'var(--top-tabs-muted, hsl(var(--muted-foreground)))' }}
             onClick={onToggleTheme}
+            disabled={isImmersiveActive}
             title="Toggle theme"
           >
             {theme === 'dark' ? <Sun size={16} /> : <Moon size={16} />}
@@ -788,10 +947,12 @@ const topTabsAreEqual = (prev: TopTabsProps, next: TopTabsProps): boolean => {
     prev.orphanSessions === next.orphanSessions &&
     prev.workspaces === next.workspaces &&
     prev.orderedTabs === next.orderedTabs &&
+    prev.logViews === next.logViews &&
     prev.draggingSessionId === next.draggingSessionId &&
     prev.isMacClient === next.isMacClient &&
     prev.onOpenSettings === next.onOpenSettings &&
-    prev.onSyncNow === next.onSyncNow
+    prev.onSyncNow === next.onSyncNow &&
+    prev.isImmersiveActive === next.isImmersiveActive
   );
 };
 

components/TrayPanel.tsx

@@ -116,7 +116,7 @@ const TrayPanelContent: React.FC = () => {
     onTrayPanelMenuData,
   } = useTrayPanelBackend();
 
-  const { hosts, keys } = useVaultState();
+  const { hosts, keys, identities } = useVaultState();
   useSessionState();
   const { rules: portForwardingRules, startTunnel, stopTunnel } = usePortForwardingState();
   const activeTabId = useActiveTabId();
@@ -151,11 +151,6 @@ const TrayPanelContent: React.FC = () => {
     return () => unsubscribe?.();
   }, [onTrayPanelRefresh]);
 
-  const keysForPf = useMemo(
-    () => keys.map((k) => ({ id: k.id, privateKey: k.privateKey, passphrase: k.passphrase })),
-    [keys],
-  );
-
   const handleClose = useCallback(() => {
     void hideTrayPanel();
   }, [hideTrayPanel]);
@@ -339,7 +334,7 @@ const TrayPanelContent: React.FC = () => {
                       if (isActive) {
                         void stopTunnel(rule.id);
                       } else {
-                        void startTunnel(rule, host, keysForPf, (status, error) => {
+                        void startTunnel(rule, host, hosts, keys, identities, (status, error) => {
                           if (status === "error" && error) toast.error(error);
                         }, rule.autoStart);
                       }

components/ai-elements/conversation.tsx

@@ -1,5 +1,5 @@
 import { cn } from '../../lib/utils';
-import type { ComponentProps, HTMLAttributes, ReactNode } from 'react';
+import type { ComponentProps } from 'react';
 import React, { useCallback } from 'react';
 import { StickToBottom, useStickToBottomContext } from 'use-stick-to-bottom';
 import { ArrowDown } from 'lucide-react';
@@ -9,7 +9,7 @@ export type ConversationProps = ComponentProps<typeof StickToBottom>;
 export const Conversation = ({ className, ...props }: ConversationProps) => (
   <StickToBottom
     className={cn('relative flex-1 overflow-y-hidden', className)}
-    initial="smooth"
+    initial="instant"
     resize="smooth"
     role="log"
     {...props}
@@ -25,41 +25,6 @@ export const ConversationContent = ({ className, ...props }: ConversationContent
   />
 );
 
-export interface ConversationEmptyStateProps extends HTMLAttributes<HTMLDivElement> {
-  title?: string;
-  description?: string;
-  icon?: ReactNode;
-}
-
-export const ConversationEmptyState = ({
-  className,
-  title,
-  description,
-  icon,
-  children,
-  ...props
-}: ConversationEmptyStateProps) => (
-  <div
-    className={cn(
-      'flex size-full flex-col items-center justify-center gap-3 p-8 text-center',
-      className,
-    )}
-    {...props}
-  >
-    {children ?? (
-      <>
-        {icon && <div className="text-muted-foreground">{icon}</div>}
-        <div className="space-y-1">
-          <h3 className="font-medium text-sm">{title}</h3>
-          {description && (
-            <p className="text-muted-foreground text-sm">{description}</p>
-          )}
-        </div>
-      </>
-    )}
-  </div>
-);
-
 export const ConversationScrollButton = ({ className, ...props }: React.ButtonHTMLAttributes<HTMLButtonElement>) => {
   const { isAtBottom, scrollToBottom } = useStickToBottomContext();
 

components/ai-elements/message.tsx

@@ -25,8 +25,8 @@ export type MessageContentProps = HTMLAttributes<HTMLDivElement>;
 export const MessageContent = ({ children, className, ...props }: MessageContentProps) => (
   <div
     className={cn(
-      'flex w-fit min-w-0 max-w-full flex-col gap-1.5 overflow-hidden text-[13px] leading-relaxed',
-      'group-[.is-user]:ml-auto group-[.is-user]:rounded-lg group-[.is-user]:border group-[.is-user]:border-border/50 group-[.is-user]:bg-muted/50 group-[.is-user]:px-2.5 group-[.is-user]:py-2',
+      'flex w-fit min-w-0 max-w-full flex-col gap-1.5 text-[13px] leading-relaxed',
+      'group-[.is-user]:ml-auto group-[.is-user]:overflow-hidden group-[.is-user]:rounded-lg group-[.is-user]:border group-[.is-user]:border-border/50 group-[.is-user]:bg-muted/50 group-[.is-user]:px-2.5 group-[.is-user]:py-2',
       'group-[.is-assistant]:w-full group-[.is-assistant]:text-foreground/90',
       className,
     )}

components/ai-elements/prompt-input.tsx

@@ -8,8 +8,6 @@
 import { ArrowUp, Square, X } from 'lucide-react';
 import type {
   ComponentProps,
-  ComponentPropsWithoutRef,
-  ElementRef,
   FormEvent,
   HTMLAttributes,
   KeyboardEvent,
@@ -17,13 +15,6 @@ import type {
 } from 'react';
 import { forwardRef, useCallback, useRef } from 'react';
 import { cn } from '../../lib/utils';
-import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from '../ui/select';
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '../ui/tooltip';
 import {
   InputGroup,
@@ -254,30 +245,3 @@ export const PromptInputSubmit = forwardRef<HTMLButtonElement, PromptInputSubmit
 );
 PromptInputSubmit.displayName = 'PromptInputSubmit';
 
-// ---------------------------------------------------------------------------
-// PromptInputSelect (thin wrappers around the project's Select component)
-// ---------------------------------------------------------------------------
-
-export const PromptInputSelect = Select;
-
-export const PromptInputSelectTrigger = forwardRef<
-  ElementRef<typeof SelectTrigger>,
-  ComponentPropsWithoutRef<typeof SelectTrigger>
->(({ className, ...props }, ref) => (
-  <SelectTrigger
-    ref={ref}
-    className={cn(
-      'h-7 min-w-0 w-auto gap-1 border-none bg-transparent px-2 text-[11px]',
-      'text-muted-foreground/40 hover:text-muted-foreground/70',
-      'focus:ring-0 focus:ring-offset-0',
-      '[&>svg]:h-3 [&>svg]:w-3 [&>svg]:opacity-40',
-      className,
-    )}
-    {...props}
-  />
-));
-PromptInputSelectTrigger.displayName = 'PromptInputSelectTrigger';
-
-export const PromptInputSelectContent = SelectContent;
-export const PromptInputSelectItem = SelectItem;
-export const PromptInputSelectValue = SelectValue;

components/ai-elements/tool-call.tsx

@@ -1,7 +1,42 @@
 import { cn } from '../../lib/utils';
-import { ChevronDown, ChevronRight, CheckCircle2, Loader2, XCircle, Slash } from 'lucide-react';
-import type { HTMLAttributes } from 'react';
-import { useState } from 'react';
+import { Check, ChevronDown, ChevronRight, CheckCircle2, Loader2, ShieldAlert, X, XCircle, Slash } from 'lucide-react';
+import React, { useCallback, useEffect, useRef, useState, type HTMLAttributes } from 'react';
+import { Button } from '../ui/button';
+import { Badge } from '../ui/badge';
+import { useI18n } from '../../application/i18n/I18nProvider';
+
+/**
+ * Format tool result for display. Extracts stdout/stderr from structured
+ * command results for terminal-like output.
+ */
+function formatToolResult(result: unknown): string {
+  let parsed = result;
+
+  if (typeof parsed === 'string') {
+    try {
+      const obj = JSON.parse(parsed);
+      if (obj && typeof obj === 'object') parsed = obj;
+    } catch {
+      return parsed;
+    }
+  }
+
+  if (parsed && typeof parsed === 'object' && !Array.isArray(parsed)) {
+    const obj = parsed as Record<string, unknown>;
+    if (typeof obj.stdout === 'string' || typeof obj.stderr === 'string') {
+      const parts: string[] = [];
+      if (typeof obj.stdout === 'string' && obj.stdout) parts.push(obj.stdout);
+      if (typeof obj.stderr === 'string' && obj.stderr) parts.push(obj.stderr);
+      if (typeof obj.exitCode === 'number' && obj.exitCode !== 0) {
+        parts.push(`exit code: ${obj.exitCode}`);
+      }
+      if (parts.length > 0) return parts.join('\n');
+    }
+  }
+
+  if (typeof parsed === 'string') return parsed;
+  return JSON.stringify(parsed, null, 2);
+}
 
 export interface ToolCallProps extends HTMLAttributes<HTMLDivElement> {
   name: string;
@@ -10,23 +45,91 @@ export interface ToolCallProps extends HTMLAttributes<HTMLDivElement> {
   isError?: boolean;
   isLoading?: boolean;
   isInterrupted?: boolean;
+  /** Approval state for this tool call (from the approval gate). */
+  approvalStatus?: 'pending' | 'approved' | 'denied';
+  /** Called when user approves this tool call. */
+  onApprove?: () => void;
+  /** Called when user rejects this tool call. */
+  onReject?: () => void;
 }
 
-export const ToolCall = ({ name, args, result, isError, isLoading, isInterrupted, className, ...props }: ToolCallProps) => {
+export const ToolCall = ({
+  name, args, result, isError, isLoading, isInterrupted,
+  approvalStatus, onApprove, onReject,
+  className, ...props
+}: ToolCallProps) => {
+  const { t } = useI18n();
   const [expanded, setExpanded] = useState(false);
+  const cardRef = useRef<HTMLDivElement>(null);
+  const approveBtnRef = useRef<HTMLButtonElement>(null);
+  const [responded, setResponded] = useState(false);
 
-  const statusIcon = isLoading ? (
-    <Loader2 size={12} className="animate-spin text-blue-400/70" />
+  const isPendingApproval = approvalStatus === 'pending' && !responded;
+
+  const handleApprove = useCallback(() => {
+    if (!isPendingApproval) return;
+    setResponded(true);
+    onApprove?.();
+  }, [isPendingApproval, onApprove]);
+
+  const handleReject = useCallback(() => {
+    if (!isPendingApproval) return;
+    setResponded(true);
+    onReject?.();
+  }, [isPendingApproval, onReject]);
+
+  // Keyboard: Enter = approve, Escape = reject (when pending)
+  const handleKeyDown = useCallback((e: React.KeyboardEvent) => {
+    if (!isPendingApproval) return;
+    if (e.key === 'Enter') { e.preventDefault(); handleApprove(); }
+    else if (e.key === 'Escape') { e.preventDefault(); handleReject(); }
+  }, [isPendingApproval, handleApprove, handleReject]);
+
+  // Auto-focus and auto-scroll when approval is pending
+  useEffect(() => {
+    if (isPendingApproval && cardRef.current) {
+      cardRef.current.scrollIntoView({ behavior: 'smooth', block: 'end' });
+      // Small delay to let the UI render, then expand and focus
+      setExpanded(true);
+      setTimeout(() => approveBtnRef.current?.focus(), 100);
+    }
+  }, [isPendingApproval]);
+
+  // Reset responded state when approvalStatus changes (e.g. new approval)
+  useEffect(() => {
+    if (approvalStatus === 'pending') setResponded(false);
+  }, [approvalStatus]);
+
+  // Border/bg color based on approval status
+  const borderClass = approvalStatus === 'pending'
+    ? 'border-yellow-500/30 bg-yellow-500/[0.04]'
+    : approvalStatus === 'approved'
+      ? 'border-green-500/20 bg-green-500/[0.03]'
+      : approvalStatus === 'denied'
+        ? 'border-red-500/20 bg-red-500/[0.03]'
+        : 'border-border/25 bg-muted/10';
+  const statusIconClass = 'shrink-0';
+
+  const statusIcon = approvalStatus === 'pending' ? (
+    <ShieldAlert size={12} className={cn('text-yellow-500/70', statusIconClass)} />
+  ) : isLoading ? (
+    <Loader2 size={12} className={cn('animate-spin text-blue-400/70', statusIconClass)} />
   ) : isInterrupted ? (
-    <Slash size={12} className="text-muted-foreground/55" />
+    <Slash size={12} className={cn('text-muted-foreground/55', statusIconClass)} />
   ) : isError ? (
-    <XCircle size={12} className="text-red-400/70" />
+    <XCircle size={12} className={cn('text-red-400/70', statusIconClass)} />
   ) : result !== undefined ? (
-    <CheckCircle2 size={12} className="text-green-400/70" />
+    <CheckCircle2 size={12} className={cn('text-green-400/70', statusIconClass)} />
   ) : null;
 
   return (
-    <div className={cn('rounded-md border border-border/25 bg-muted/10 overflow-hidden text-[12px]', className)} {...props}>
+    <div
+      ref={cardRef}
+      tabIndex={isPendingApproval ? 0 : undefined}
+      onKeyDown={isPendingApproval ? handleKeyDown : undefined}
+      className={cn('rounded-md border overflow-hidden text-[12px] outline-none', borderClass, className)}
+      {...props}
+    >
       <button
         type="button"
         onClick={() => setExpanded(e => !e)}
@@ -36,28 +139,78 @@ export const ToolCall = ({ name, args, result, isError, isLoading, isInterrupted
           ? <ChevronDown size={12} className="text-muted-foreground/40 shrink-0" />
           : <ChevronRight size={12} className="text-muted-foreground/40 shrink-0" />
         }
-        <span className="font-mono text-muted-foreground/70 truncate">{name}</span>
+        {name === 'terminal_execute' && args?.command ? (
+          <span className="font-mono text-muted-foreground/70 truncate" title={String(args.command)}>
+            <span className="text-muted-foreground/40">$ </span>{String(args.command)}
+          </span>
+        ) : (
+          <span className="font-mono text-muted-foreground/70 truncate">{name}</span>
+        )}
         <span className="flex-1" />
+        {/* Approval badge for resolved approvals */}
+        {approvalStatus === 'approved' && (
+          <Badge className="text-[10px] px-1.5 py-0 bg-green-600/20 text-green-400 border-green-600/30">
+            {t('ai.chat.toolApproved')}
+          </Badge>
+        )}
+        {approvalStatus === 'denied' && (
+          <Badge className="text-[10px] px-1.5 py-0 bg-red-600/20 text-red-400 border-red-600/30">
+            {t('ai.chat.toolDenied')}
+          </Badge>
+        )}
         {statusIcon}
       </button>
+
       {expanded && (
         <div className="border-t border-border/20">
           {args && Object.keys(args).length > 0 && (
             <div className="px-3 py-2">
               <div className="text-[10px] font-medium uppercase tracking-wider text-muted-foreground/30 mb-1">Arguments</div>
-              <pre className="text-[11px] font-mono text-muted-foreground/50 whitespace-pre-wrap break-all">
+              <pre className="max-h-64 overflow-auto text-[11px] font-mono text-muted-foreground/50 whitespace-pre [overflow-wrap:normal]">
                 {JSON.stringify(args, null, 2)}
               </pre>
             </div>
           )}
+
+          {/* Inline approval buttons */}
+          {isPendingApproval && (
+            <div className="px-3 py-2 border-t border-border/20">
+              <div className="flex items-center justify-between">
+                <span className="text-[10px] text-muted-foreground/30">
+                  {t('ai.chat.toolApprovalHint')}
+                </span>
+                <div className="flex items-center gap-1.5">
+                  <Button
+                    variant="outline"
+                    size="sm"
+                    className="h-6 px-2 text-[11px] border-red-500/20 text-red-400/80 hover:bg-red-500/10 hover:text-red-400"
+                    onClick={handleReject}
+                  >
+                    <X size={11} className="mr-0.5" />
+                    {t('ai.chat.reject')}
+                  </Button>
+                  <Button
+                    ref={approveBtnRef}
+                    size="sm"
+                    className="h-6 px-2.5 text-[11px] bg-green-600/80 hover:bg-green-600 text-white"
+                    onClick={handleApprove}
+                  >
+                    <Check size={11} className="mr-0.5" />
+                    {t('ai.chat.approve')}
+                  </Button>
+                </div>
+              </div>
+            </div>
+          )}
+
           {result !== undefined && (
             <div className="px-3 py-2 border-t border-border/20">
               <div className="text-[10px] font-medium uppercase tracking-wider text-muted-foreground/30 mb-1">Result</div>
               <pre className={cn(
-                'text-[11px] font-mono whitespace-pre-wrap break-all',
+                'max-h-64 overflow-auto text-[11px] font-mono whitespace-pre [overflow-wrap:normal]',
                 isError ? 'text-red-400/60' : 'text-muted-foreground/50',
               )}>
-                {typeof result === 'string' ? result : JSON.stringify(result, null, 2)}
+                {formatToolResult(result)}
               </pre>
             </div>
           )}

components/ai/AgentIconBadge.tsx

@@ -11,6 +11,7 @@ type AgentLike = {
 
 type AgentIconKey =
   | 'catty'
+  | 'copilot'
   | 'openai'
   | 'claude'
   | 'anthropic'
@@ -20,7 +21,7 @@ type AgentIconKey =
   | 'openrouter'
   | 'zed'
   | 'atom'
-| 'terminal'
+  | 'terminal'
   | 'plus';
 
 type AgentIconVisual = {
@@ -35,6 +36,11 @@ const AGENT_ICON_VISUALS: Record<AgentIconKey, AgentIconVisual> = {
     badgeClassName: 'border-violet-500/20 bg-violet-500/10',
     imageClassName: 'object-contain dark:brightness-0 dark:invert opacity-90',
   },
+  copilot: {
+    src: '/ai/agents/copilot.svg',
+    badgeClassName: 'border-zinc-300 bg-white',
+    imageClassName: 'object-contain brightness-0',
+  },
   openai: {
     src: '/ai/providers/openai.svg',
     badgeClassName: 'border-emerald-500/22 bg-emerald-500/12',
@@ -115,6 +121,9 @@ function getAgentIconKey(agent: AgentLike | 'add-more'): AgentIconKey {
   if (tokens.some((token) => token.includes('claude'))) {
     return 'claude';
   }
+  if (tokens.some((token) => token.includes('copilot'))) {
+    return 'copilot';
+  }
   if (tokens.some((token) => token.includes('anthropic'))) {
     return 'anthropic';
   }
@@ -154,20 +163,14 @@ function getAgentIconKey(agent: AgentLike | 'add-more'): AgentIconKey {
   return 'terminal';
 }
 
-export function getAgentCommandLabel(agent: AgentLike): string | undefined {
-  if (agent.type === 'builtin') {
-    return 'Built-in terminal assistant';
-  }
-  return agent.command ? `CLI: ${agent.command}` : 'External CLI agent';
-}
-
 export const AgentIconBadge: React.FC<{
   agent: AgentLike | 'add-more';
   size?: 'xs' | 'sm' | 'md' | 'lg';
   variant?: 'plain' | 'badge';
   className?: string;
 }> = ({ agent, size = 'md', variant = 'badge', className }) => {
-  const visual = AGENT_ICON_VISUALS[getAgentIconKey(agent)];
+  const iconKey = getAgentIconKey(agent);
+  const visual = AGENT_ICON_VISUALS[iconKey];
   const badgeSize =
     size === 'xs'
       ? 'h-4 w-4 rounded-sm'
@@ -187,18 +190,27 @@ export const AgentIconBadge: React.FC<{
 
   if (variant === 'plain') {
     return (
-      <img
-        src={visual.src}
-        alt=""
+      <div
         aria-hidden="true"
-        draggable={false}
-        className={cn('shrink-0', imageSize, visual.imageClassName, className)}
+        className={cn('shrink-0', imageSize, className)}
+        style={{
+          maskImage: `url(${visual.src})`,
+          WebkitMaskImage: `url(${visual.src})`,
+          maskSize: 'contain',
+          WebkitMaskSize: 'contain',
+          maskRepeat: 'no-repeat',
+          WebkitMaskRepeat: 'no-repeat',
+          maskPosition: 'center',
+          WebkitMaskPosition: 'center',
+          backgroundColor: 'currentColor',
+        }}
       />
     );
   }
 
   return (
     <div
+      data-agent-badge=""
       className={cn(
         'flex shrink-0 items-center justify-center overflow-hidden border',
         badgeSize,

components/ai/AgentSelector.tsx

@@ -9,6 +9,10 @@ import { ChevronDown, RefreshCw, Plus, Settings } from 'lucide-react';
 import React, { useCallback, useMemo, useState } from 'react';
 import { cn } from '../../lib/utils';
 import { useI18n } from '../../application/i18n/I18nProvider';
+import {
+  isSettingsManagedDiscoveredAgent,
+  matchesManagedAgentConfig,
+} from '../../infrastructure/ai/managedAgents';
 import type { AgentInfo, ExternalAgentConfig, DiscoveredAgent } from '../../infrastructure/ai/types';
 import AgentIconBadge from './AgentIconBadge';
 import {
@@ -140,7 +144,12 @@ const AgentSelector: React.FC<AgentSelectorProps> = ({
   const unconfiguredDiscovered = useMemo(
     () =>
       discoveredAgents.filter(
-        (da) => !externalAgents.some((ea) => ea.command === da.command || ea.command === da.path),
+        (da) => {
+          if (isSettingsManagedDiscoveredAgent(da)) {
+            return !externalAgents.some((ea) => matchesManagedAgentConfig(ea, da.command));
+          }
+          return !externalAgents.some((ea) => ea.command === da.command || ea.command === da.path);
+        },
       ),
     [discoveredAgents, externalAgents],
   );
@@ -208,7 +217,7 @@ const AgentSelector: React.FC<AgentSelectorProps> = ({
       <DropdownContent
         align="start"
         sideOffset={6}
-        className="w-[288px] rounded-2xl border border-border/50 bg-popover p-0 text-foreground shadow-lg supports-[backdrop-filter]:backdrop-blur-xl"
+        className="w-[288px] overflow-hidden rounded-2xl border border-border/50 bg-popover p-0 text-foreground shadow-lg supports-[backdrop-filter]:backdrop-blur-xl"
       >
         {BUILTIN_AGENTS.map((agent) => (
           <AgentMenuRow

components/ai/ChatInput.tsx

@@ -229,7 +229,7 @@ const ChatInput: React.FC<ChatInputProps> = ({
             value={value}
             onChange={(e) => handleInputChange(e.target.value)}
             placeholder={placeholder || defaultPlaceholder}
-            disabled={disabled || isStreaming}
+            disabled={disabled}
             className={expanded ? 'max-h-[220px]' : undefined}
           />
           <button

components/ai/ChatMessageList.tsx

@@ -6,10 +6,11 @@
  * No avatars. Thinking blocks are collapsible.
  */
 
-import { AlertCircle, FileText } from 'lucide-react';
-import React from 'react';
+import { AlertCircle, FileText, RotateCcw, X, ZoomIn, ZoomOut } from 'lucide-react';
+import React, { useCallback, useEffect, useRef, useState } from 'react';
 import { useI18n } from '../../application/i18n/I18nProvider';
 import type { ChatMessage } from '../../infrastructure/ai/types';
+import { Dialog, DialogContent, DialogTitle } from '../ui/dialog';
 import {
   Conversation,
   ConversationContent,
@@ -17,17 +18,124 @@ import {
 } from '../ai-elements/conversation';
 import { Message, MessageContent, MessageResponse } from '../ai-elements/message';
 import { ToolCall } from '../ai-elements/tool-call';
-import { InlineApprovalCard } from './InlineApprovalCard';
 import ThinkingBlock from './ThinkingBlock';
+import {
+  onApprovalRequest,
+  onApprovalCleared,
+  replayPendingApprovals,
+  resolveApproval,
+  type ApprovalRequest,
+} from '../../infrastructure/ai/shared/approvalGate';
 
 interface ChatMessageListProps {
   messages: ChatMessage[];
   isStreaming?: boolean;
-  onApprove?: (messageId: string) => void;
-  onReject?: (messageId: string) => void;
+  /** Active chat session ID — used to filter standalone MCP approval blocks */
+  activeSessionId?: string | null;
 }
 
-const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming, onApprove, onReject }) => {
+const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming, activeSessionId }) => {
+  // Track pending approvals from the approval gate
+  const [pendingApprovals, setPendingApprovals] = useState<Map<string, ApprovalRequest>>(new Map());
+  const [resolvedApprovals, setResolvedApprovals] = useState<Map<string, boolean>>(new Map());
+
+  // Subscribe to approval gate events (SDK + MCP tool calls)
+  useEffect(() => {
+    const handler = (request: ApprovalRequest) => {
+      setPendingApprovals(prev => new Map(prev).set(request.toolCallId, request));
+    };
+    const unsub = onApprovalRequest(handler);
+    // Replay any approvals that fired while this component was unmounted
+    replayPendingApprovals(handler);
+    return unsub;
+  }, []);
+
+  // Subscribe to approval cleared/removed events (fired on session stop or timeout)
+  useEffect(() => {
+    return onApprovalCleared((clearedIds) => {
+      setPendingApprovals(prev => {
+        const m = new Map(prev);
+        for (const id of clearedIds) m.delete(id);
+        return m;
+      });
+    });
+  }, []);
+
+  const handleApprove = useCallback((toolCallId: string) => {
+    resolveApproval(toolCallId, true);
+    setPendingApprovals(prev => { const m = new Map(prev); m.delete(toolCallId); return m; });
+    setResolvedApprovals(prev => new Map(prev).set(toolCallId, true));
+  }, []);
+
+  const handleReject = useCallback((toolCallId: string) => {
+    resolveApproval(toolCallId, false);
+    setPendingApprovals(prev => { const m = new Map(prev); m.delete(toolCallId); return m; });
+    setResolvedApprovals(prev => new Map(prev).set(toolCallId, false));
+  }, []);
+  const [preview, setPreview] = useState<{ src: string; name: string } | null>(null);
+  const [zoom, setZoom] = useState(100);
+  const [dragged, setDragged] = useState(false);
+  const imgRef = useRef<HTMLImageElement>(null);
+  const dragPos = useRef({ x: 0, y: 0 });
+  const dragStart = useRef<{ startX: number; startY: number; origX: number; origY: number } | null>(null);
+
+  const applyTransform = useCallback((z: number, x: number, y: number, animate: boolean) => {
+    if (!imgRef.current) return;
+    imgRef.current.style.transition = animate ? 'transform 0.25s ease' : 'none';
+    imgRef.current.style.transform = `scale(${z / 100}) translate(${x / (z / 100)}px, ${y / (z / 100)}px)`;
+  }, []);
+
+  const zoomRef = useRef(100);
+  const setZoomAndRef = useCallback((fn: (z: number) => number) => {
+    setZoom(z => { const nz = fn(z); zoomRef.current = nz; return nz; });
+  }, []);
+  const zoomIn = useCallback(() => setZoomAndRef(z => { const nz = Math.min(z + 25, 200); applyTransform(nz, dragPos.current.x, dragPos.current.y, true); return nz; }), [applyTransform, setZoomAndRef]);
+  const zoomOut = useCallback(() => setZoomAndRef(z => { const nz = Math.max(z - 25, 25); applyTransform(nz, dragPos.current.x, dragPos.current.y, true); return nz; }), [applyTransform, setZoomAndRef]);
+
+  const onWheel = useCallback((e: React.WheelEvent) => {
+    e.preventDefault();
+    const delta = e.deltaY > 0 ? -10 : 10;
+    setZoomAndRef(z => {
+      const nz = Math.max(25, Math.min(200, z + delta));
+      applyTransform(nz, dragPos.current.x, dragPos.current.y, false);
+      return nz;
+    });
+  }, [applyTransform, setZoomAndRef]);
+  const openPreview = useCallback((src: string, name: string) => {
+    setZoom(100); zoomRef.current = 100;
+    setDragged(false);
+    dragPos.current = { x: 0, y: 0 };
+    setPreview({ src, name });
+  }, []);
+
+  const resetPreview = useCallback(() => {
+    setZoom(100); zoomRef.current = 100;
+    setDragged(false);
+    dragPos.current = { x: 0, y: 0 };
+    applyTransform(100, 0, 0, true);
+  }, [applyTransform]);
+
+  const onPointerDown = useCallback((e: React.PointerEvent) => {
+    e.preventDefault();
+    (e.target as HTMLElement).setPointerCapture(e.pointerId);
+    dragStart.current = { startX: e.clientX, startY: e.clientY, origX: dragPos.current.x, origY: dragPos.current.y };
+  }, []);
+
+  const onPointerMove = useCallback((e: React.PointerEvent) => {
+    if (!dragStart.current) return;
+    if ((e.buttons & 1) === 0) { dragStart.current = null; return; }
+    const x = dragStart.current.origX + (e.clientX - dragStart.current.startX);
+    const y = dragStart.current.origY + (e.clientY - dragStart.current.startY);
+    dragPos.current = { x, y };
+    applyTransform(zoomRef.current, x, y, false);
+  }, [applyTransform]);
+
+  const endDrag = useCallback(() => {
+    if (dragStart.current && (dragPos.current.x !== 0 || dragPos.current.y !== 0)) {
+      setDragged(true);
+    }
+    dragStart.current = null;
+  }, []);
   const { t } = useI18n();
   const visibleMessages = messages.filter(m => m.role !== 'system');
   const resolvedToolCallIds = new Set(
@@ -36,12 +144,14 @@ const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming
       .flatMap((m) => m.toolResults?.map((tr) => tr.toolCallId) ?? []),
   );
 
-  // Build a map from toolCallId → toolName for display
+  // Build maps from toolCallId → toolName / toolArgs for display
   const toolCallNames = new Map<string, string>();
+  const toolCallArgs = new Map<string, Record<string, unknown>>();
   for (const m of visibleMessages) {
     if (m.role === 'assistant' && m.toolCalls) {
       for (const tc of m.toolCalls) {
         toolCallNames.set(tc.id, tc.name);
+        if (tc.arguments) toolCallArgs.set(tc.id, tc.arguments);
       }
     }
   }
@@ -59,6 +169,7 @@ const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming
   const lastAssistantMessage = visibleMessages.findLast(m => m.role === 'assistant');
 
   return (
+    <>
     <Conversation className="flex-1">
       <ConversationContent className="gap-1.5 px-4 py-2">
         {visibleMessages.map((message) => {
@@ -69,6 +180,7 @@ const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming
                   <ToolCall
                     key={tr.toolCallId}
                     name={toolCallNames.get(tr.toolCallId) || tr.toolCallId}
+                    args={toolCallArgs.get(tr.toolCallId)}
                     result={tr.content}
                     isError={tr.isError}
                   />
@@ -102,7 +214,8 @@ const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming
                           key={att.filename ? `${att.filename}-${i}` : `att-${message.id}-${i}`}
                           src={`data:${att.mediaType};base64,${att.base64Data}`}
                           alt={att.filename || 'image'}
-                          className="max-h-[120px] max-w-[200px] rounded-md object-contain border border-border/20"
+                          className="max-h-[120px] max-w-[200px] rounded-md object-contain border border-border/20 cursor-pointer hover:opacity-80 transition-opacity"
+                          onClick={() => openPreview(`data:${att.mediaType};base64,${att.base64Data}`, att.filename || 'image')}
                         />
                       ) : (
                         <div
@@ -125,27 +238,34 @@ const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming
                       </MessageResponse>
                 )}
 
-                {/* Tool calls */}
-                {message.toolCalls?.map((tc) => (
-                  <ToolCall
-                    key={tc.id}
-                    name={tc.name}
-                    args={tc.arguments}
-                    isLoading={isThisStreaming && message.executionStatus === 'running'}
-                    isInterrupted={message.executionStatus === 'cancelled' && !resolvedToolCallIds.has(tc.id)}
-                  />
-                ))}
-
-                {/* Inline approval card */}
-                {message.pendingApproval && (
-                  <InlineApprovalCard
-                    toolName={message.pendingApproval.toolName}
-                    toolArgs={message.pendingApproval.toolArgs}
-                    status={message.pendingApproval.status}
-                    onApprove={() => onApprove?.(message.id)}
-                    onReject={() => onReject?.(message.id)}
-                  />
-                )}
+                {/* Pending tool calls from the *last* assistant message are rendered
+                    after all tool-result messages (see below) for chronological order.
+                    Unresolved tool calls from earlier or cancelled messages are shown
+                    inline — as interrupted, or with approval controls if still pending. */}
+                {(message !== lastAssistantMessage || message.executionStatus === 'cancelled') && message.toolCalls?.filter((tc) =>
+                  !resolvedToolCallIds.has(tc.id),
+                ).map((tc) => {
+                  const isPending = pendingApprovals.has(tc.id);
+                  const resolved = resolvedApprovals.get(tc.id);
+                  const approvalStatus = isPending
+                    ? 'pending' as const
+                    : resolved === true
+                      ? 'approved' as const
+                      : resolved === false
+                        ? 'denied' as const
+                        : undefined;
+                  return (
+                    <ToolCall
+                      key={tc.id}
+                      name={tc.name}
+                      args={tc.arguments}
+                      isInterrupted={!isPending}
+                      approvalStatus={approvalStatus}
+                      onApprove={() => handleApprove(tc.id)}
+                      onReject={() => handleReject(tc.id)}
+                    />
+                  );
+                })}
 
                 {/* Status text with shimmer */}
                 {message.statusText && (
@@ -173,6 +293,51 @@ const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming
           );
         })}
 
+        {/* Pending tool calls from the last assistant message — rendered here
+            (after all tool-result messages) so they appear at the bottom. */}
+        {lastAssistantMessage?.toolCalls?.filter((tc) =>
+          !resolvedToolCallIds.has(tc.id) && lastAssistantMessage.executionStatus !== 'cancelled',
+        ).map((tc) => {
+          const isPending = pendingApprovals.has(tc.id);
+          const resolved = resolvedApprovals.get(tc.id);
+          const approvalStatus = isPending
+            ? 'pending' as const
+            : resolved === true
+              ? 'approved' as const
+              : resolved === false
+                ? 'denied' as const
+                : undefined;
+          return (
+            <ToolCall
+              key={tc.id}
+              name={tc.name}
+              args={tc.arguments}
+              isLoading={isStreaming && lastAssistantMessage.executionStatus === 'running' && !isPending}
+              approvalStatus={approvalStatus}
+              onApprove={() => handleApprove(tc.id)}
+              onReject={() => handleReject(tc.id)}
+            />
+          );
+        })}
+
+        {/* Standalone MCP/ACP approval requests (not tied to SDK tool calls) */}
+        {Array.from(pendingApprovals.entries())
+          .filter((entry) => entry[0].startsWith('mcp_approval_') && (!activeSessionId || entry[1].chatSessionId === activeSessionId))
+          .map((entry) => {
+            const [id, req] = entry;
+            return (
+              <ToolCall
+                key={id}
+                name={req.toolName}
+                args={req.args}
+                isLoading={false}
+                isInterrupted={false}
+                approvalStatus={'pending'}
+                onApprove={() => handleApprove(id)}
+                onReject={() => handleReject(id)}
+              />
+            );
+          })}
         {/* Streaming indicator — only when no content and no thinking yet */}
         {isStreaming && !lastAssistantMessage?.content && !lastAssistantMessage?.thinking && (
           <div className="flex items-center gap-1 py-2">
@@ -184,13 +349,89 @@ const ChatMessageList: React.FC<ChatMessageListProps> = ({ messages, isStreaming
       </ConversationContent>
       <ConversationScrollButton />
     </Conversation>
+
+    {/* Image preview lightbox */}
+    <Dialog open={!!preview} onOpenChange={(open) => { if (!open) setPreview(null); }}>
+      <DialogContent
+        hideCloseButton
+        className="max-w-[min(90vw,800px)] max-h-[min(90vh,700px)] min-w-[280px] min-h-[200px] w-fit p-0 gap-0 focus:outline-none shadow-2xl"
+      >
+        {/* Title bar: filename | zoom controls | close — all in one flex row */}
+        <div className="flex items-center h-10 px-3 border-b border-border/40 gap-2 shrink-0">
+          <DialogTitle className="text-sm font-medium truncate flex-1">{preview?.name}</DialogTitle>
+          <div className="flex items-center gap-1 shrink-0">
+            <button
+              onClick={resetPreview}
+              disabled={zoom === 100 && !dragged}
+              className="p-1 rounded hover:bg-muted disabled:opacity-30 transition-colors text-muted-foreground"
+              aria-label={t('common.reset')}
+            >
+              <RotateCcw size={14} />
+            </button>
+            <div className="w-px h-3.5 bg-border/40 mx-0.5" />
+            <button
+              onClick={zoomOut}
+              disabled={zoom <= 25}
+              className="p-1 rounded hover:bg-muted disabled:opacity-30 transition-colors text-muted-foreground"
+              aria-label={t('common.zoomOut')}
+            >
+              <ZoomOut size={14} />
+            </button>
+            <span className="text-xs text-muted-foreground tabular-nums w-9 text-center select-none">{zoom}%</span>
+            <button
+              onClick={zoomIn}
+              disabled={zoom >= 200}
+              className="p-1 rounded hover:bg-muted disabled:opacity-30 transition-colors text-muted-foreground"
+              aria-label={t('common.zoomIn')}
+            >
+              <ZoomIn size={14} />
+            </button>
+          </div>
+          <button
+            onClick={() => setPreview(null)}
+            className="p-1 rounded hover:bg-muted transition-colors text-muted-foreground shrink-0"
+            aria-label={t('common.close')}
+          >
+            <X size={14} />
+          </button>
+        </div>
+        {/* Image area with drag support */}
+        {preview && (
+          <div
+            className="overflow-hidden flex items-center justify-center"
+            style={{
+              height: 'calc(min(90vh, 700px) - 40px)',
+              cursor: 'grab',
+              // Clamp aspect ratio: if image is extremely tall/wide, the container
+              // constrains it; object-contain handles the rest.
+              aspectRatio: 'auto',
+            }}
+            onPointerDown={onPointerDown}
+            onPointerMove={onPointerMove}
+            onPointerUp={endDrag}
+            onPointerCancel={endDrag}
+            onWheel={onWheel}
+            onLostPointerCapture={endDrag}
+          >
+            <img
+              ref={imgRef}
+              src={preview.src}
+              alt={preview.name}
+              draggable={false}
+              className="select-none max-w-full max-h-full object-contain"
+              style={{ transition: 'transform 0.25s ease' }}
+            />
+          </div>
+        )}
+      </DialogContent>
+    </Dialog>
+    </>
   );
 };
 
 function areMessagesEqual(prev: ChatMessageListProps, next: ChatMessageListProps): boolean {
   if (prev.isStreaming !== next.isStreaming) return false;
-  if (prev.onApprove !== next.onApprove) return false;
-  if (prev.onReject !== next.onReject) return false;
+  if (prev.activeSessionId !== next.activeSessionId) return false;
   if (prev.messages.length !== next.messages.length) return false;
   if (prev.messages === next.messages) return true;
 
@@ -208,7 +449,6 @@ function areMessagesEqual(prev: ChatMessageListProps, next: ChatMessageListProps
         p.role !== n.role ||
         p.statusText !== n.statusText ||
         p.executionStatus !== n.executionStatus ||
-        p.pendingApproval !== n.pendingApproval ||
         p.errorInfo !== n.errorInfo ||
         p.toolCalls !== n.toolCalls ||
         p.toolResults !== n.toolResults

components/ai/ExecutionPlan.tsx

@@ -1,169 +0,0 @@
-/**
- * ExecutionPlan - Renders a multi-step execution plan for AI agent tasks.
- *
- * Shows a numbered list of steps with status indicators, host badges,
- * optional command previews, and action buttons.
- */
-
-import {
-  CheckCircle2,
-  Circle,
-  Loader2,
-  SkipForward,
-  XCircle,
-} from 'lucide-react';
-import React from 'react';
-import { cn } from '../../lib/utils';
-import { Badge } from '../ui/badge';
-import { Button } from '../ui/button';
-
-// -------------------------------------------------------------------
-// Types
-// -------------------------------------------------------------------
-
-interface ExecutionPlanStep {
-  description: string;
-  host?: string;
-  command?: string;
-  status: 'pending' | 'running' | 'completed' | 'failed' | 'skipped';
-}
-
-interface ExecutionPlanProps {
-  steps: ExecutionPlanStep[];
-  onApprove: () => void;
-  onModify: () => void;
-  onReject: () => void;
-  isExecuting: boolean;
-}
-
-// -------------------------------------------------------------------
-// Status icon mapping
-// -------------------------------------------------------------------
-
-function StepStatusIcon({
-  status,
-}: {
-  status: ExecutionPlanStep['status'];
-}) {
-  switch (status) {
-    case 'pending':
-      return <Circle size={16} className="text-muted-foreground" />;
-    case 'running':
-      return (
-        <Loader2 size={16} className="text-blue-500 animate-spin" />
-      );
-    case 'completed':
-      return <CheckCircle2 size={16} className="text-green-500" />;
-    case 'failed':
-      return <XCircle size={16} className="text-destructive" />;
-    case 'skipped':
-      return (
-        <SkipForward size={16} className="text-muted-foreground/60" />
-      );
-  }
-}
-
-// -------------------------------------------------------------------
-// Component
-// -------------------------------------------------------------------
-
-const ExecutionPlan: React.FC<ExecutionPlanProps> = ({
-  steps,
-  onApprove,
-  onModify,
-  onReject,
-  isExecuting,
-}) => {
-  return (
-    <div className="rounded-lg border border-border bg-muted/30 overflow-hidden">
-      {/* Header */}
-      <div className="px-3 py-2 border-b border-border/60 bg-muted/50">
-        <span className="text-sm font-medium">
-          Execution Plan ({steps.length} step{steps.length !== 1 ? 's' : ''})
-        </span>
-      </div>
-
-      {/* Steps list */}
-      <div className="divide-y divide-border/30">
-        {steps.map((step, index) => (
-          <div
-            key={index}
-            className={cn(
-              'flex items-start gap-3 px-3 py-2.5 transition-colors',
-              step.status === 'running' && 'bg-blue-500/5',
-              step.status === 'completed' && 'bg-green-500/5',
-              step.status === 'failed' && 'bg-destructive/5',
-              step.status === 'skipped' && 'opacity-50',
-            )}
-          >
-            {/* Step number + status icon */}
-            <div className="flex items-center gap-2 shrink-0 pt-0.5">
-              <span className="text-xs text-muted-foreground font-mono w-4 text-right">
-                {index + 1}
-              </span>
-              <StepStatusIcon status={step.status} />
-            </div>
-
-            {/* Step content */}
-            <div className="min-w-0 flex-1 space-y-1">
-              <div className="flex items-center gap-2 flex-wrap">
-                <span
-                  className={cn(
-                    'text-sm',
-                    step.status === 'skipped' && 'line-through',
-                  )}
-                >
-                  {step.description}
-                </span>
-                {step.host && (
-                  <Badge
-                    variant="outline"
-                    className="text-[10px] px-1.5 py-0"
-                  >
-                    {step.host}
-                  </Badge>
-                )}
-              </div>
-              {step.command && (
-                <code className="block text-xs font-mono bg-muted/80 px-2 py-1 rounded text-muted-foreground truncate">
-                  {step.command}
-                </code>
-              )}
-            </div>
-          </div>
-        ))}
-      </div>
-
-      {/* Action buttons */}
-      <div className="px-3 py-2.5 border-t border-border/60 flex items-center justify-end gap-2">
-        {isExecuting ? (
-          <Button
-            variant="destructive"
-            size="sm"
-            onClick={onReject}
-          >
-            Cancel
-          </Button>
-        ) : (
-          <>
-            <Button variant="ghost" size="sm" onClick={onReject}>
-              Cancel
-            </Button>
-            <Button variant="outline" size="sm" onClick={onModify}>
-              Modify Plan
-            </Button>
-            <Button size="sm" onClick={onApprove}>
-              Approve
-            </Button>
-          </>
-        )}
-      </div>
-    </div>
-  );
-};
-
-ExecutionPlan.displayName = 'ExecutionPlan';
-
-export default ExecutionPlan;
-export { ExecutionPlan };
-export type { ExecutionPlanProps, ExecutionPlanStep };

components/ai/InlineApprovalCard.tsx

@@ -1,193 +0,0 @@
-/**
- * InlineApprovalCard - Inline tool approval card rendered within chat messages.
- *
- * Replaces the modal PermissionDialog. Shows tool name, arguments, and
- * approve/reject buttons. Keyboard shortcuts: Enter to approve, Escape to reject.
- */
-
-import { Check, ShieldAlert, X } from 'lucide-react';
-import React, { useCallback, useEffect, useRef, useState } from 'react';
-import { useI18n } from '../../application/i18n/I18nProvider';
-import { Badge } from '../ui/badge';
-import { Button } from '../ui/button';
-
-interface InlineApprovalCardProps {
-  toolName: string;
-  toolArgs: Record<string, unknown>;
-  status: 'pending' | 'approved' | 'denied';
-  onApprove: () => void;
-  onReject: () => void;
-}
-
-const InlineApprovalCard: React.FC<InlineApprovalCardProps> = ({
-  toolName,
-  toolArgs,
-  status,
-  onApprove,
-  onReject,
-}) => {
-  const { t } = useI18n();
-  const cardRef = useRef<HTMLDivElement>(null);
-  const approveBtnRef = useRef<HTMLButtonElement>(null);
-  const isPending = status === 'pending';
-  const [responded, setResponded] = useState(false);
-
-  // Use refs to always access the latest callbacks without re-registering the listener
-  const onApproveRef = useRef(onApprove);
-  const onRejectRef = useRef(onReject);
-  onApproveRef.current = onApprove;
-  onRejectRef.current = onReject;
-
-  const isDisabled = !isPending || responded;
-
-  const handleApprove = useCallback(() => {
-    if (isDisabled) return;
-    setResponded(true);
-    onApproveRef.current();
-  }, [isDisabled]);
-
-  const handleReject = useCallback(() => {
-    if (isDisabled) return;
-    setResponded(true);
-    onRejectRef.current();
-  }, [isDisabled]);
-
-  // Keyboard shortcuts: handled via local onKeyDown on the focusable card element
-  // to avoid conflicts when multiple InlineApprovalCard instances exist simultaneously.
-  const handleKeyDown = useCallback((e: React.KeyboardEvent) => {
-    if (isDisabled) return;
-    if (e.key === 'Enter') {
-      e.preventDefault();
-      handleApprove();
-    } else if (e.key === 'Escape') {
-      e.preventDefault();
-      handleReject();
-    }
-  }, [isDisabled, handleApprove, handleReject]);
-
-  // Auto-focus approve button and auto-scroll into view when mounted as pending
-  useEffect(() => {
-    if (isPending && cardRef.current) {
-      cardRef.current.scrollIntoView({ behavior: 'smooth', block: 'end' });
-      approveBtnRef.current?.focus();
-    }
-  }, [isPending]);
-
-  let formattedArgs: string;
-  try {
-    formattedArgs = JSON.stringify(toolArgs, null, 2);
-  } catch {
-    formattedArgs = String(toolArgs);
-  }
-
-  // Extract target session info if present
-  const sessionId = toolArgs?.sessionId as string | undefined;
-
-  return (
-    <div
-      ref={cardRef}
-      tabIndex={0}
-      role="alertdialog"
-      aria-label="Tool execution approval required"
-      onKeyDown={handleKeyDown}
-      className={`rounded-md border overflow-hidden text-[12px] mt-1.5 outline-none ${
-        isPending
-          ? 'border-yellow-500/30 bg-yellow-500/[0.04]'
-          : status === 'approved'
-            ? 'border-green-500/20 bg-green-500/[0.03]'
-            : 'border-red-500/20 bg-red-500/[0.03]'
-      }`}
-    >
-      {/* Header */}
-      <div className="flex items-center gap-2 px-3 py-1.5">
-        <ShieldAlert
-          size={13}
-          className={
-            isPending
-              ? 'text-yellow-500/70 shrink-0'
-              : status === 'approved'
-                ? 'text-green-400/70 shrink-0'
-                : 'text-red-400/70 shrink-0'
-          }
-        />
-        <span className="text-[11px] font-medium text-foreground/70">
-          {t('ai.chat.toolApprovalTitle')}
-        </span>
-        {!isPending && (
-          <Badge
-            className={`ml-auto text-[10px] px-1.5 py-0 ${
-              status === 'approved'
-                ? 'bg-green-600/20 text-green-400 border-green-600/30'
-                : 'bg-red-600/20 text-red-400 border-red-600/30'
-            }`}
-          >
-            {status === 'approved' ? t('ai.chat.toolApproved') : t('ai.chat.toolDenied')}
-          </Badge>
-        )}
-      </div>
-
-      {/* Tool info */}
-      <div className="px-3 pb-2 space-y-1.5">
-        <div className="flex items-center gap-2">
-          <span className="text-[10px] text-muted-foreground/40 uppercase tracking-wider">{t('ai.chat.toolLabel')}</span>
-          <code className="text-[11px] font-mono text-muted-foreground/70 bg-muted/30 px-1.5 py-0.5 rounded">
-            {toolName}
-          </code>
-        </div>
-
-        {sessionId && (
-          <div className="flex items-center gap-2">
-            <span className="text-[10px] text-muted-foreground/40 uppercase tracking-wider">{t('ai.chat.targetLabel')}</span>
-            <code className="text-[11px] font-mono text-muted-foreground/50 bg-muted/30 px-1.5 py-0.5 rounded">
-              {sessionId}
-            </code>
-          </div>
-        )}
-
-        {/* Arguments */}
-        <div className="rounded border border-border/20 bg-muted/10 p-2 max-h-32 overflow-auto">
-          <pre className="text-[11px] font-mono whitespace-pre-wrap break-all text-muted-foreground/50">
-            {formattedArgs}
-          </pre>
-        </div>
-
-        {/* Actions or hint */}
-        {isPending && (
-          <div className="flex items-center justify-between pt-0.5">
-            <span className="text-[10px] text-muted-foreground/30">
-              {t('ai.chat.toolApprovalHint')}
-            </span>
-            <div className="flex items-center gap-1.5">
-              <Button
-                variant="outline"
-                size="sm"
-                disabled={responded}
-                className={`h-6 px-2 text-[11px] border-red-500/20 text-red-400/80 hover:bg-red-500/10 hover:text-red-400 ${responded ? 'opacity-50 cursor-not-allowed' : ''}`}
-                onClick={handleReject}
-              >
-                <X size={11} className="mr-0.5" />
-                {t('ai.chat.reject')}
-              </Button>
-              <Button
-                ref={approveBtnRef}
-                size="sm"
-                disabled={responded}
-                className={`h-6 px-2.5 text-[11px] bg-green-600/80 hover:bg-green-600 text-white ${responded ? 'opacity-50 cursor-not-allowed' : ''}`}
-                onClick={handleApprove}
-              >
-                <Check size={11} className="mr-0.5" />
-                {t('ai.chat.approve')}
-              </Button>
-            </div>
-          </div>
-        )}
-      </div>
-    </div>
-  );
-};
-
-InlineApprovalCard.displayName = 'InlineApprovalCard';
-
-export default InlineApprovalCard;
-export { InlineApprovalCard };
-export type { InlineApprovalCardProps };

components/ai/PermissionDialog.tsx

@@ -1,200 +0,0 @@
-/**
- * PermissionDialog - Modal for AI agent tool call permission requests.
- *
- * Shown when the agent needs user approval to execute a tool call.
- * Displays tool name, arguments, recommendation, and approve/reject actions.
- */
-
-import { ShieldAlert } from 'lucide-react';
-import React, { useCallback } from 'react';
-import { useI18n } from '../../application/i18n/I18nProvider';
-import { cn } from '../../lib/utils';
-import { Badge } from '../ui/badge';
-import { Button } from '../ui/button';
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogFooter,
-  DialogHeader,
-  DialogTitle,
-} from '../ui/dialog';
-
-// -------------------------------------------------------------------
-// Types
-// -------------------------------------------------------------------
-
-interface PermissionDialogProps {
-  open: boolean;
-  toolCall: { name: string; arguments: Record<string, unknown> } | null;
-  recommendation: 'allow' | 'confirm' | 'deny';
-  onApprove: () => void;
-  onReject: () => void;
-  onDismiss: () => void;
-}
-
-// -------------------------------------------------------------------
-// Component
-// -------------------------------------------------------------------
-
-const PermissionDialog: React.FC<PermissionDialogProps> = ({
-  open,
-  toolCall,
-  recommendation,
-  onApprove,
-  onReject,
-  onDismiss,
-}) => {
-  const { t } = useI18n();
-  const isDenied = recommendation === 'deny';
-
-  // Keyboard shortcuts: Enter to approve, Escape to reject
-  const handleKeyDown = useCallback(
-    (e: React.KeyboardEvent) => {
-      if (e.key === 'Enter' && !isDenied) {
-        e.preventDefault();
-        onApprove();
-      } else if (e.key === 'Escape') {
-        e.preventDefault();
-        onReject();
-      }
-    },
-    [isDenied, onApprove, onReject],
-  );
-
-  // Format arguments as readable code block content
-  let formattedArgs = '';
-  if (toolCall) {
-    try {
-      formattedArgs = JSON.stringify(toolCall.arguments, null, 2);
-    } catch {
-      formattedArgs = String(toolCall.arguments);
-    }
-  }
-
-  // Extract host/session info from arguments if present
-  const sessionId =
-    toolCall?.arguments?.sessionId as string | undefined;
-  const sessionIds =
-    toolCall?.arguments?.sessionIds as string[] | undefined;
-
-  const recommendationBadge = () => {
-    switch (recommendation) {
-      case 'allow':
-        return (
-          <Badge className="bg-green-600/20 text-green-400 border-green-600/30">
-            {t('ai.chat.recommendAllow')}
-          </Badge>
-        );
-      case 'confirm':
-        return (
-          <Badge className="bg-yellow-600/20 text-yellow-400 border-yellow-600/30">
-            {t('ai.chat.recommendConfirm')}
-          </Badge>
-        );
-      case 'deny':
-        return <Badge variant="destructive">{t('ai.chat.recommendDeny')}</Badge>;
-    }
-  };
-
-  return (
-    <Dialog open={open} onOpenChange={(isOpen) => !isOpen && onDismiss()}>
-      <DialogContent hideCloseButton onKeyDown={handleKeyDown}>
-        <DialogHeader>
-          <DialogTitle className="flex items-center gap-2">
-            <ShieldAlert
-              size={20}
-              className={cn(
-                isDenied ? 'text-destructive' : 'text-yellow-500',
-              )}
-            />
-            {t('ai.chat.permissionRequired')}
-          </DialogTitle>
-          <DialogDescription>
-            {t('ai.chat.permissionDescription')}
-          </DialogDescription>
-        </DialogHeader>
-
-        {toolCall && (
-          <div className="space-y-3">
-            {/* Tool name and recommendation */}
-            <div className="flex items-center justify-between">
-              <div className="flex items-center gap-2">
-                <span className="text-sm text-muted-foreground">{t('ai.chat.toolLabel')}:</span>
-                <code className="text-sm font-mono bg-muted px-1.5 py-0.5 rounded">
-                  {toolCall.name}
-                </code>
-              </div>
-              {recommendationBadge()}
-            </div>
-
-            {/* Target session(s) */}
-            {(sessionId || sessionIds) && (
-              <div className="flex items-center gap-2">
-                <span className="text-sm text-muted-foreground">{t('ai.chat.targetLabel')}:</span>
-                {sessionId && (
-                  <code className="text-xs font-mono bg-muted px-1.5 py-0.5 rounded">
-                    {sessionId}
-                  </code>
-                )}
-                {sessionIds && (
-                  <div className="flex flex-wrap gap-1">
-                    {sessionIds.map((id) => (
-                      <code
-                        key={id}
-                        className="text-xs font-mono bg-muted px-1.5 py-0.5 rounded"
-                      >
-                        {id}
-                      </code>
-                    ))}
-                  </div>
-                )}
-              </div>
-            )}
-
-            {/* Arguments code block */}
-            <div className="rounded-md border border-border bg-muted/50 p-3 max-h-48 overflow-auto">
-              <pre className="text-xs font-mono whitespace-pre-wrap break-all text-foreground">
-                {formattedArgs}
-              </pre>
-            </div>
-
-            {/* Deny warning */}
-            {isDenied && (
-              <div className="rounded-md border border-destructive/30 bg-destructive/10 p-3">
-                <p className="text-sm text-destructive">
-                  {t('ai.chat.commandBlocked')}
-                </p>
-              </div>
-            )}
-          </div>
-        )}
-
-        <DialogFooter>
-          {isDenied ? (
-            <Button variant="destructive" onClick={onReject} className="w-full">
-              {t('ai.chat.reject')}
-            </Button>
-          ) : (
-            <>
-              <Button
-                variant="outline"
-                onClick={onReject}
-                className="border-destructive/30 text-destructive hover:bg-destructive/10"
-              >
-                {t('ai.chat.reject')}
-              </Button>
-              <Button onClick={onApprove}>{t('ai.chat.approve')}</Button>
-            </>
-          )}
-        </DialogFooter>
-      </DialogContent>
-    </Dialog>
-  );
-};
-
-PermissionDialog.displayName = 'PermissionDialog';
-
-export default PermissionDialog;
-export { PermissionDialog };
-export type { PermissionDialogProps };

components/ai/hooks/useAIChatStreaming.ts

@@ -18,6 +18,7 @@ import type {
   ChatMessage,
   ChatMessageAttachment,
   ExternalAgentConfig,
+  ProviderAdvancedParams,
   ProviderConfig,
   WebSearchConfig,
 } from '../../../infrastructure/ai/types';
@@ -64,16 +65,30 @@ interface ToolResultChunk {
   result?: unknown;
 }
 
-/** Shape of a tool-approval-request chunk from the Vercel AI SDK fullStream. */
-interface ToolApprovalRequestChunk {
-  type: 'tool-approval-request';
-  approvalId: string;
-  toolCall: {
-    toolCallId: string;
-    toolName: string;
-    args?: Record<string, unknown>;
-    input?: Record<string, unknown>;
-  };
+/** Detect tool results that represent errors/denials (e.g. `{ error: "..." }` or `{ ok: false }`) */
+function isToolResultError(output: unknown): boolean {
+  if (output == null) return false;
+  
+  if (typeof output === 'object') {
+    const obj = output as Record<string, unknown>;
+    // Check for explicit error objects
+    if ('error' in obj && typeof obj.error === 'string') return true;
+    if ('ok' in obj && obj.ok === false) return true;
+  }
+  
+  // Check stringified JSON (common for tool result wrapping)
+  if (typeof output === 'string') {
+    try {
+      const parsed = JSON.parse(output);
+      if (parsed && typeof parsed === 'object') {
+        const parsedObj = parsed as Record<string, unknown>;
+        if ('error' in parsedObj && typeof parsedObj.error === 'string') return true;
+        if ('ok' in parsedObj && parsedObj.ok === false) return true;
+      }
+    } catch { /* not JSON, not an error */ }
+  }
+  
+  return false;
 }
 
 /** Shape of an error chunk from the Vercel AI SDK fullStream. */
@@ -88,9 +103,8 @@ type StreamChunk =
   | ReasoningChunk
   | ToolCallChunk
   | ToolResultChunk
-  | ToolApprovalRequestChunk
   | ErrorChunk
-  | { type: 'reasoning-end' | 'text-start' | 'text-end' | 'start' | 'finish' | 'start-step' | 'finish-step' };
+  | { type: 'reasoning-end' | 'text-start' | 'text-end' | 'start' | 'finish' | 'start-step' | 'finish-step' | 'tool-approval-request' };
 
 /** Shape of the netcatty bridge exposed on `window` (panel-specific subset). */
 export interface PanelBridge extends NetcattyBridge {
@@ -98,6 +112,13 @@ export interface PanelBridge extends NetcattyBridge {
   aiSyncProviders?: (providers: Array<{ id: string; providerId: string; apiKey?: string; baseURL?: string; enabled: boolean }>) => Promise<{ ok: boolean }>;
   aiSyncWebSearch?: (apiHost: string | null, apiKey: string | null) => Promise<{ ok: boolean }>;
   aiMcpUpdateSessions?: (sessions: TerminalSessionInfo[], chatSessionId?: string) => Promise<unknown>;
+  aiAcpListModels?: (
+    acpCommand: string,
+    acpArgs?: string[],
+    cwd?: string,
+    providerId?: string,
+    chatSessionId?: string,
+  ) => Promise<{ ok: boolean; models?: Array<{ id: string; name: string; description?: string }>; currentModelId?: string | null; error?: string }>;
   aiAcpCleanup?: (chatSessionId: string) => Promise<{ ok: boolean }>;
   [key: string]: ((...args: unknown[]) => unknown) | undefined;
 }
@@ -110,6 +131,9 @@ export interface TerminalSessionInfo {
   label: string;
   os?: string;
   username?: string;
+  protocol?: string;
+  shellType?: string;
+  deviceType?: string;
   connected: boolean;
 }
 
@@ -119,27 +143,8 @@ export function getNetcattyBridge(): PanelBridge | undefined {
   return (window as any).netcatty as PanelBridge | undefined;
 }
 
-/** Approval info returned by processCattyStream when a tool-approval-request is received. */
-export interface ApprovalInfo {
-  approvalId: string;
-  toolCallId: string;
-  toolName: string;
-  toolArgs: Record<string, unknown>;
-}
-
-/** Pending approval context stored between approval request and user response. */
-export interface PendingApprovalContext {
-  sessionId: string;
-  scopeKey: string;
-  sdkMessages: Array<ModelMessage>;
-  approvalInfo: ApprovalInfo;
-  model: ReturnType<typeof createModelFromConfig>;
-  systemPrompt: string;
-  tools: ReturnType<typeof createCattyTools>;
-  scopeType: 'terminal' | 'workspace';
-  scopeLabel?: string;
-  getExecutorContext: () => ExecutorContext;
-}
+// ApprovalInfo and PendingApprovalContext removed — approval is now handled
+// inside the tool's execute function via the approvalGate module.
 
 function generateId(): string {
   return `msg-${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;
@@ -181,7 +186,7 @@ export interface UseAIChatStreamingReturn {
   setStreamingForScope: (key: string, val: boolean) => void;
   /** Ref to per-session abort controllers. */
   abortControllersRef: React.MutableRefObject<Map<string, AbortController>>;
-  /** Process a Catty agent stream, returning approval info if one is requested. */
+  /** Process a Catty agent stream. */
   processCattyStream: (
     streamSessionId: string,
     model: ReturnType<typeof createModelFromConfig>,
@@ -190,7 +195,8 @@ export interface UseAIChatStreamingReturn {
     sdkMessages: Array<ModelMessage>,
     signal: AbortSignal,
     currentAssistantMsgId: string,
-  ) => Promise<ApprovalInfo | null>;
+    advancedParams?: ProviderAdvancedParams,
+  ) => Promise<void>;
   /** Send a message to the Catty agent (built-in). */
   sendToCattyAgent: (
     sessionId: string,
@@ -227,7 +233,6 @@ export interface SendToCattyContext {
   terminalSessions: TerminalSessionInfo[];
   webSearchConfig?: WebSearchConfig | null;
   getExecutorContext?: () => ExecutorContext;
-  setPendingApproval: (ctx: PendingApprovalContext | null) => void;
   autoTitleSession: (sessionId: string, text: string) => void;
 }
 
@@ -325,7 +330,8 @@ export function useAIChatStreaming({
     sdkMessages: Array<ModelMessage>,
     signal: AbortSignal,
     currentAssistantMsgId: string,
-  ): Promise<ApprovalInfo | null> => {
+    advancedParams?: ProviderAdvancedParams,
+  ): Promise<void> => {
     const result = streamText({
       model,
       messages: sdkMessages,
@@ -333,13 +339,17 @@ export function useAIChatStreaming({
       tools,
       stopWhen: stepCountIs(maxIterations),
       abortSignal: signal,
+      ...(advancedParams?.maxTokens != null && { maxOutputTokens: advancedParams.maxTokens }),
+      ...(advancedParams?.temperature != null && { temperature: advancedParams.temperature }),
+      ...(advancedParams?.topP != null && { topP: advancedParams.topP }),
+      ...(advancedParams?.frequencyPenalty != null && { frequencyPenalty: advancedParams.frequencyPenalty }),
+      ...(advancedParams?.presencePenalty != null && { presencePenalty: advancedParams.presencePenalty }),
     });
 
     // Track the current assistant message ID so updates target the correct message
     let activeMsgId = currentAssistantMsgId;
     let lastAddedRole: 'assistant' | 'tool' = 'assistant';
     const reader = result.fullStream.getReader();
-    let pendingApprovalInfo: ApprovalInfo | null = null;
 
     // -- Text-delta batching: accumulate deltas and flush periodically --
     let pendingText = '';
@@ -457,6 +467,7 @@ export function useAIChatStreaming({
               ? { ...msg, executionStatus: 'completed', statusText: undefined } : msg,
           );
           const toolOutput = typedChunk.output ?? typedChunk.result;
+          const toolError = isToolResultError(toolOutput);
           addMessageToSession(streamSessionId, {
             id: generateId(),
             role: 'tool',
@@ -466,7 +477,7 @@ export function useAIChatStreaming({
               content: typeof toolOutput === 'string'
                 ? toolOutput
                 : JSON.stringify(toolOutput),
-              isError: false,
+              isError: toolError,
             }],
             timestamp: Date.now(),
             executionStatus: 'completed',
@@ -474,25 +485,9 @@ export function useAIChatStreaming({
           lastAddedRole = 'tool';
           break;
         }
-        case 'tool-approval-request': {
-          cancelPendingFlush();
-          flushText();
-          const typedChunk = chunk as ToolApprovalRequestChunk;
-          pendingApprovalInfo = {
-            approvalId: typedChunk.approvalId,
-            toolCallId: typedChunk.toolCall.toolCallId,
-            toolName: typedChunk.toolCall.toolName,
-            toolArgs: typedChunk.toolCall.args ?? typedChunk.toolCall.input ?? {},
-          };
-          updateMessageById(streamSessionId, activeMsgId, msg => ({
-            ...msg,
-            pendingApproval: {
-              ...pendingApprovalInfo!,
-              status: 'pending' as const,
-            },
-          }));
-          break;
-        }
+        // tool-approval-request is no longer handled here — approval is now
+        // inside the tool's execute function via the approvalGate module.
+        // The SDK may still emit this chunk type but we simply ignore it.
         case 'error': {
           cancelPendingFlush();
           flushText();
@@ -524,7 +519,7 @@ export function useAIChatStreaming({
       flushText();
       reader.releaseLock();
     }
-    return pendingApprovalInfo;
+    return;
   }, [maxIterations, addMessageToSession, updateMessageById]);
 
   // -------------------------------------------------------------------
@@ -613,9 +608,10 @@ export function useAIChatStreaming({
                 : msg.toolCalls;
               return { ...msg, toolCalls: updatedToolCalls, executionStatus: 'completed', statusText: undefined };
             });
+            const toolError = isToolResultError(result);
             addMessageToSession(sessionId, {
               id: generateId(), role: 'tool', content: '',
-              toolResults: [{ toolCallId, content: result, isError: false }],
+              toolResults: [{ toolCallId, content: result, isError: toolError }],
               timestamp: Date.now(), executionStatus: 'completed',
             });
             needsNewAssistantMsg = true;
@@ -689,13 +685,19 @@ export function useAIChatStreaming({
       context.commandBlocklist,
       context.globalPermissionMode,
       context.webSearchConfig ?? undefined,
+      sessionId,
     );
 
     const systemPrompt = buildSystemPrompt({
       scopeType: context.scopeType, scopeLabel: context.scopeLabel,
       hosts: context.terminalSessions.map(s => ({
         sessionId: s.sessionId, hostname: s.hostname, label: s.label,
-        os: s.os, username: s.username, connected: s.connected,
+        os: s.os,
+        username: s.username,
+        protocol: s.protocol,
+        shellType: s.shellType,
+        deviceType: s.deviceType,
+        connected: s.connected,
       })),
       permissionMode: context.globalPermissionMode,
       webSearchEnabled: isWebSearchReady(context.webSearchConfig),
@@ -819,23 +821,7 @@ export function useAIChatStreaming({
         sdkMessages.push({ role: 'user', content: trimmed });
       }
 
-      const approvalInfo = await processCattyStream(sessionId, model, systemPrompt, tools, sdkMessages, abortController.signal, assistantMsgId);
-
-      if (approvalInfo) {
-        context.setPendingApproval({
-          sessionId,
-          scopeKey: sendScopeKey,
-          sdkMessages,
-          approvalInfo,
-          model,
-          systemPrompt,
-          tools,
-          scopeType: context.scopeType,
-          scopeLabel: context.scopeLabel,
-          getExecutorContext,
-        });
-        return; // Keep streaming flag — waiting for user approval
-      }
+      await processCattyStream(sessionId, model, systemPrompt, tools, sdkMessages, abortController.signal, assistantMsgId, context.activeProvider?.advancedParams);
     } catch (err) {
       console.error('[Catty] streamText error:', err);
       reportStreamError(sessionId, abortController.signal, err);

components/ai/hooks/useToolApproval.ts

@@ -1,298 +0,0 @@
-/**
- * useToolApproval — Encapsulates the tool approval workflow for the AI chat panel.
- *
- * Handles:
- * - Pending approval context management
- * - Approval timeout (auto-clear after 5 minutes)
- * - handleApprovalResponse (approve/reject from InlineApprovalCard)
- * - Resuming the Catty stream after approval
- */
-
-import React, { useCallback, useRef } from 'react';
-import type { ModelMessage } from 'ai';
-import type {
-  AIPermissionMode,
-  ChatMessage,
-  WebSearchConfig,
-} from '../../../infrastructure/ai/types';
-import { isWebSearchReady } from '../../../infrastructure/ai/types';
-import { buildSystemPrompt } from '../../../infrastructure/ai/cattyAgent/systemPrompt';
-import { createCattyTools } from '../../../infrastructure/ai/sdk/tools';
-import { classifyError } from '../../../infrastructure/ai/errorClassifier';
-import type {
-  ApprovalInfo,
-  PendingApprovalContext,
-} from './useAIChatStreaming';
-import { getNetcattyBridge } from './useAIChatStreaming';
-import type { createModelFromConfig } from '../../../infrastructure/ai/sdk/providers';
-
-function generateId(): string {
-  return `msg-${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;
-}
-
-let sharedPendingApprovalContext: PendingApprovalContext | null = null;
-let sharedPendingApprovalTimeout: ReturnType<typeof setTimeout> | null = null;
-
-// -------------------------------------------------------------------
-// Hook parameters
-// -------------------------------------------------------------------
-
-export interface UseToolApprovalParams {
-  addMessageToSession: (sessionId: string, message: ChatMessage) => void;
-  updateLastMessage: (sessionId: string, updater: (msg: ChatMessage) => ChatMessage) => void;
-  updateMessageById: (sessionId: string, messageId: string, updater: (msg: ChatMessage) => ChatMessage) => void;
-  setStreamingForScope: (key: string, val: boolean) => void;
-  abortControllersRef: React.MutableRefObject<Map<string, AbortController>>;
-  processCattyStream: (
-    streamSessionId: string,
-    model: ReturnType<typeof createModelFromConfig>,
-    systemPrompt: string,
-    tools: ReturnType<typeof createCattyTools>,
-    sdkMessages: Array<ModelMessage>,
-    signal: AbortSignal,
-    currentAssistantMsgId: string,
-  ) => Promise<ApprovalInfo | null>;
-  t: (key: string) => string;
-}
-
-// -------------------------------------------------------------------
-// Hook return type
-// -------------------------------------------------------------------
-
-export interface UseToolApprovalReturn {
-  /** Ref to the current pending approval context (null when none). */
-  pendingApprovalContextRef: React.MutableRefObject<PendingApprovalContext | null>;
-  /** Set or clear the pending approval context (manages timeout). */
-  setPendingApproval: (ctx: PendingApprovalContext | null) => void;
-  /** Handle a user's approve/reject response from InlineApprovalCard. */
-  handleApprovalResponse: (
-    messageId: string,
-    approved: boolean,
-    approvalContext: ToolApprovalContext,
-  ) => Promise<void>;
-}
-
-/** Context values needed by handleApprovalResponse that change frequently. */
-export interface ToolApprovalContext {
-  globalPermissionMode: AIPermissionMode;
-  commandBlocklist?: string[];
-  webSearchConfig?: WebSearchConfig | null;
-}
-
-// -------------------------------------------------------------------
-// Hook implementation
-// -------------------------------------------------------------------
-
-export function useToolApproval({
-  addMessageToSession,
-  updateLastMessage,
-  updateMessageById,
-  setStreamingForScope,
-  abortControllersRef,
-  processCattyStream,
-  t,
-}: UseToolApprovalParams): UseToolApprovalReturn {
-  // Pending approval context — stores SDK state needed to resume after user approves/rejects
-  const pendingApprovalContextRef = useRef<PendingApprovalContext | null>(sharedPendingApprovalContext);
-  pendingApprovalContextRef.current = sharedPendingApprovalContext;
-
-  /** Set pending approval context with a 5-minute auto-clear timeout. */
-  const setPendingApproval = useCallback((ctx: PendingApprovalContext | null) => {
-    // Clear any existing timeout
-    if (sharedPendingApprovalTimeout) {
-      clearTimeout(sharedPendingApprovalTimeout);
-      sharedPendingApprovalTimeout = null;
-    }
-    sharedPendingApprovalContext = ctx;
-    pendingApprovalContextRef.current = ctx;
-    if (ctx) {
-      sharedPendingApprovalTimeout = setTimeout(() => {
-        // Auto-clear after 5 minutes if user never responds
-        if (sharedPendingApprovalContext?.sessionId === ctx.sessionId) {
-          sharedPendingApprovalContext = null;
-          pendingApprovalContextRef.current = null;
-          setStreamingForScope(ctx.sessionId, false);
-          abortControllersRef.current.get(ctx.sessionId)?.abort();
-          abortControllersRef.current.delete(ctx.sessionId);
-          // Notify the user that the approval timed out
-          updateLastMessage(ctx.sessionId, msg => ({
-            ...msg,
-            statusText: '',
-            executionStatus: msg.executionStatus === 'running' ? 'failed' : msg.executionStatus,
-          }));
-          addMessageToSession(ctx.sessionId, {
-            id: generateId(),
-            role: 'assistant',
-            content: t('ai.chat.approvalTimeout'),
-            timestamp: Date.now(),
-          });
-        }
-        sharedPendingApprovalTimeout = null;
-      }, 5 * 60 * 1000); // 5 minutes
-    }
-  }, [setStreamingForScope, abortControllersRef, updateLastMessage, addMessageToSession, t]);
-
-  // Handle inline approval response (approve/reject from InlineApprovalCard)
-  const handleApprovalResponse = useCallback(async (
-    messageId: string,
-    approved: boolean,
-    approvalContext: ToolApprovalContext,
-  ) => {
-    const ctx = pendingApprovalContextRef.current;
-    if (!ctx) return;
-    // Destructure all needed values BEFORE clearing the ref to avoid race conditions
-    const {
-      sessionId: sid,
-      scopeKey: sk,
-      sdkMessages,
-      approvalInfo,
-      model: ctxModel,
-      scopeType,
-      scopeLabel,
-      getExecutorContext,
-    } = ctx;
-    // Clear pending approval (and its timeout) via setPendingApproval
-    setPendingApproval(null);
-
-    // Update the message's pendingApproval status using message ID
-    updateMessageById(sid, messageId, msg => ({
-      ...msg,
-      pendingApproval: msg.pendingApproval
-        ? { ...msg.pendingApproval, status: approved ? 'approved' as const : 'denied' as const }
-        : undefined,
-    }));
-
-    if (!approved) {
-      // User rejected — add denial text and stop
-      updateMessageById(sid, messageId, msg => ({
-        ...msg,
-        content: msg.content + (msg.content ? '\n\n' : '') + t('ai.chat.toolDenied'),
-        statusText: '',
-        executionStatus: 'completed',
-      }));
-      setStreamingForScope(sid, false);
-      abortControllersRef.current.delete(sid);
-      return;
-    }
-
-    // User approved — construct SDK messages with approval response and resume
-    const resumeMessages: Array<Record<string, unknown>> = [
-      ...sdkMessages,
-      // The assistant message that contained the tool call + approval request
-      {
-        role: 'assistant',
-        content: [
-          {
-            type: 'tool-call',
-            toolCallId: approvalInfo.toolCallId,
-            toolName: approvalInfo.toolName,
-            input: approvalInfo.toolArgs,
-          },
-          {
-            type: 'tool-approval-request',
-            approvalId: approvalInfo.approvalId,
-            toolCallId: approvalInfo.toolCallId,
-          },
-        ],
-      },
-      // The user's approval response
-      {
-        role: 'tool',
-        content: [
-          {
-            type: 'tool-approval-response',
-            approvalId: approvalInfo.approvalId,
-            approved: true,
-          },
-        ],
-      },
-    ];
-
-    // Create a new assistant message placeholder for the continuation
-    const newAssistantMsgId = generateId();
-    addMessageToSession(sid, {
-      id: newAssistantMsgId,
-      role: 'assistant',
-      content: '',
-      timestamp: Date.now(),
-    });
-
-    const abortController = new AbortController();
-    abortControllersRef.current.set(sid, abortController);
-
-    try {
-      // Rebuild tools and system prompt with the latest permission mode to prevent
-      // stale settings, while keeping the original AI scope pinned to its workspace/session.
-      const bridge = getNetcattyBridge();
-      const freshExecutorContext = getExecutorContext();
-      const freshTools = createCattyTools(
-        bridge,
-        getExecutorContext,
-        approvalContext.commandBlocklist,
-        approvalContext.globalPermissionMode,
-        approvalContext.webSearchConfig ?? undefined,
-      );
-      const freshSystemPrompt = buildSystemPrompt({
-        scopeType,
-        scopeLabel,
-        hosts: freshExecutorContext.sessions.map(s => ({
-          sessionId: s.sessionId, hostname: s.hostname, label: s.label,
-          os: s.os, username: s.username, connected: s.connected,
-        })),
-        permissionMode: approvalContext.globalPermissionMode,
-        webSearchEnabled: isWebSearchReady(approvalContext.webSearchConfig),
-      });
-      const newApprovalInfo = await processCattyStream(sid, ctxModel, freshSystemPrompt, freshTools, resumeMessages as unknown as ModelMessage[], abortController.signal, newAssistantMsgId);
-
-      if (newApprovalInfo) {
-        // Another approval needed — save context for the next round (with timeout)
-        setPendingApproval({
-          sessionId: sid,
-          scopeKey: sk,
-          sdkMessages: resumeMessages,
-          approvalInfo: newApprovalInfo,
-          model: ctxModel,
-          systemPrompt: freshSystemPrompt,
-          tools: freshTools,
-          scopeType,
-          scopeLabel,
-          getExecutorContext,
-        });
-        return;
-      }
-    } catch (err) {
-      console.error('[Catty resume] streamText error:', err);
-      if (!abortController.signal.aborted) {
-        const errorStr = err instanceof Error ? err.message : String(err);
-        updateMessageById(sid, newAssistantMsgId, msg => ({
-          ...msg,
-          statusText: '',
-          executionStatus: msg.executionStatus === 'running' ? 'failed' : msg.executionStatus,
-        }));
-        addMessageToSession(sid, {
-          id: generateId(),
-          role: 'assistant',
-          content: '',
-          errorInfo: classifyError(errorStr),
-          timestamp: Date.now(),
-        });
-      }
-    } finally {
-      if (!pendingApprovalContextRef.current || pendingApprovalContextRef.current.sessionId !== sid) {
-        // Clear any lingering statusText when the resumed stream finishes
-        updateLastMessage(sid, msg => msg.statusText ? { ...msg, statusText: '' } : msg);
-        setStreamingForScope(sid, false);
-        abortControllersRef.current.delete(sid);
-      }
-    }
-  }, [
-    processCattyStream, addMessageToSession, updateMessageById, updateLastMessage,
-    setStreamingForScope, abortControllersRef, t, setPendingApproval,
-  ]);
-
-  return {
-    pendingApprovalContextRef,
-    setPendingApproval,
-    handleApprovalResponse,
-  };
-}

components/host-details/ChainPanel.tsx

@@ -2,14 +2,15 @@
  * Host Chain Sub-Panel
  * Panel for configuring SSH jump host chain
  */
-import { ArrowDown,Plus,X } from 'lucide-react';
-import React from 'react';
+import { ArrowDown,Plus,Search,X } from 'lucide-react';
+import React, { useMemo, useState } from 'react';
 import { useI18n } from '../../application/i18n/I18nProvider';
 import { Host } from '../../types';
 import { DistroAvatar } from '../DistroAvatar';
 import { AsidePanel } from '../ui/aside-panel';
 import { Button } from '../ui/button';
 import { Card } from '../ui/card';
+import { Input } from '../ui/input';
 import { ScrollArea } from '../ui/scroll-area';
 
 export interface ChainPanelProps {
@@ -38,6 +39,14 @@ export const ChainPanel: React.FC<ChainPanelProps> = ({
     onCancel,
 }) => {
     const { t } = useI18n();
+    const [searchQuery, setSearchQuery] = useState('');
+    const filteredHosts = useMemo(() => {
+        if (!searchQuery.trim()) return availableHostsForChain;
+        const q = searchQuery.toLowerCase();
+        return availableHostsForChain.filter(
+            (host) => host.label.toLowerCase().includes(q) || host.hostname.toLowerCase().includes(q)
+        );
+    }, [availableHostsForChain, searchQuery]);
     return (
         <AsidePanel
             open={true}
@@ -52,16 +61,7 @@ export const ChainPanel: React.FC<ChainPanelProps> = ({
             }
         >
             <ScrollArea className="flex-1">
-                <div className="p-4 space-y-4">
-                    <Card className="p-3 space-y-3 bg-card border-border/80">
-                        <p className="text-xs text-muted-foreground">
-                            {t('hostDetails.chain.desc', { host: formLabel || formHostname })}
-                        </p>
-                        <Button className="w-full h-10" onClick={() => { }}>
-                            <Plus size={14} className="mr-2" /> {t('hostDetails.chain.addHost')}
-                        </Button>
-                    </Card>
-
+                <div className="p-4 space-y-4 w-0 min-w-full">
                     {/* Chain visualization */}
                     <div className="space-y-2">
                         {chainedHosts.map((host, index) => (
@@ -73,7 +73,7 @@ export const ChainPanel: React.FC<ChainPanelProps> = ({
                                 )}
                                 <div className="flex items-center gap-2 p-2 rounded-lg border border-border/60 bg-card">
                                     <DistroAvatar host={host} fallback={host.label.slice(0, 2).toUpperCase()} className="h-8 w-8" />
-                                    <span className="text-sm font-medium flex-1">{host.label || host.hostname}</span>
+                                    <span className="text-sm font-medium flex-1 min-w-0 truncate">{host.label || host.hostname}</span>
                                     <Button
                                         variant="ghost"
                                         size="icon"
@@ -110,11 +110,20 @@ export const ChainPanel: React.FC<ChainPanelProps> = ({
                     {availableHostsForChain.length > 0 && (
                         <Card className="p-3 bg-card border-border/80">
                             <p className="text-xs font-semibold text-muted-foreground mb-2">{t('hostDetails.chain.availableHosts')}</p>
+                            <div className="relative mb-2">
+                                <Search size={14} className="absolute left-2.5 top-1/2 -translate-y-1/2 text-muted-foreground" />
+                                <Input
+                                    value={searchQuery}
+                                    onChange={(e) => setSearchQuery(e.target.value)}
+                                    placeholder={t('common.searchPlaceholder')}
+                                    className="h-8 pl-8 text-sm"
+                                />
+                            </div>
                             <div className="space-y-1">
-                                {availableHostsForChain.map((host) => (
+                                {filteredHosts.map((host) => (
                                     <button
                                         key={host.id}
-                                        className="w-full flex items-center gap-2 p-2 rounded-md hover:bg-secondary transition-colors text-left"
+                                        className="w-full flex items-center gap-2 p-2 rounded-md hover:bg-secondary transition-colors text-left overflow-hidden"
                                         onClick={() => onAddHost(host.id)}
                                     >
                                         <DistroAvatar host={host} fallback={host.label.slice(0, 2).toUpperCase()} className="h-8 w-8" />

components/port-forwarding/WizardContent.tsx

@@ -123,7 +123,7 @@ export const WizardContent: React.FC<WizardContentProps> = ({
                     >
                         {selectedHost ? (
                             <div className="flex items-center gap-2 w-full">
-                                <DistroAvatar host={selectedHost} fallback={selectedHost.os[0].toUpperCase()} className="h-6 w-6" />
+                                <DistroAvatar host={selectedHost} fallback={selectedHost.os[0].toUpperCase()} size="sm" />
                                 <span>{selectedHost.label}</span>
                                 <Check size={14} className="ml-auto" />
                             </div>
@@ -228,7 +228,7 @@ export const WizardContent: React.FC<WizardContentProps> = ({
                     >
                         {selectedHost ? (
                             <div className="flex items-center gap-2 w-full">
-                                <DistroAvatar host={selectedHost} fallback={selectedHost.os[0].toUpperCase()} className="h-6 w-6" />
+                                <DistroAvatar host={selectedHost} fallback={selectedHost.os[0].toUpperCase()} size="sm" />
                                 <span>{selectedHost.label}</span>
                                 <Check size={14} className="ml-auto" />
                             </div>

components/settings/ThemeSelectModal.tsx

@@ -3,55 +3,12 @@
  * A modal dialog for selecting terminal themes in settings
  */
 
-import React, { memo, useCallback, useMemo } from 'react';
+import React, { useCallback } from 'react';
 import { createPortal } from 'react-dom';
-import { Check, Palette, X } from 'lucide-react';
+import { Palette, X } from 'lucide-react';
 import { useI18n } from '../../application/i18n/I18nProvider';
-import { TERMINAL_THEMES, TerminalThemeConfig } from '../../infrastructure/config/terminalThemes';
-import { useCustomThemes } from '../../application/state/customThemeStore';
 import { Button } from '../ui/button';
-import { cn } from '../../lib/utils';
-
-// Memoized theme item component to prevent unnecessary re-renders
-const ThemeItem = memo(({
-    theme,
-    isSelected,
-    onSelect
-}: {
-    theme: TerminalThemeConfig;
-    isSelected: boolean;
-    onSelect: (id: string) => void;
-}) => (
-    <button
-        onClick={() => onSelect(theme.id)}
-        className={cn(
-            'w-full flex items-center gap-3 px-3 py-2.5 rounded-lg text-left transition-all',
-            isSelected
-                ? 'bg-primary/15 ring-1 ring-primary'
-                : 'hover:bg-muted'
-        )}
-    >
-        {/* Color swatch preview */}
-        <div
-            className="w-12 h-8 rounded-md flex-shrink-0 flex flex-col justify-center items-start pl-1.5 gap-0.5 border border-border/50"
-            style={{ backgroundColor: theme.colors.background }}
-        >
-            <div className="h-1 w-4 rounded-full" style={{ backgroundColor: theme.colors.green }} />
-            <div className="h-1 w-6 rounded-full" style={{ backgroundColor: theme.colors.blue }} />
-            <div className="h-1 w-3 rounded-full" style={{ backgroundColor: theme.colors.yellow }} />
-        </div>
-        <div className="flex-1 min-w-0">
-            <div className={cn('text-sm font-medium truncate', isSelected ? 'text-primary' : 'text-foreground')}>
-                {theme.name}
-            </div>
-            <div className="text-[10px] text-muted-foreground capitalize">{theme.type}</div>
-        </div>
-        {isSelected && (
-            <Check size={16} className="text-primary flex-shrink-0" />
-        )}
-    </button>
-));
-ThemeItem.displayName = 'ThemeItem';
+import { ThemeList } from '../ThemeList';
 
 interface ThemeSelectModalProps {
     open: boolean;
@@ -68,15 +25,6 @@ export const ThemeSelectModal: React.FC<ThemeSelectModalProps> = ({
 }) => {
     const { t } = useI18n();
 
-    // Group themes by type
-    const { darkThemes, lightThemes } = useMemo(() => {
-        const dark = TERMINAL_THEMES.filter(t => t.type === 'dark');
-        const light = TERMINAL_THEMES.filter(t => t.type === 'light');
-        return { darkThemes: dark, lightThemes: light };
-    }, []);
-
-    const customThemes = useCustomThemes();
-
     // Handle theme selection - select and close
     const handleThemeSelect = useCallback((themeId: string) => {
         onSelect(themeId);
@@ -134,58 +82,10 @@ export const ThemeSelectModal: React.FC<ThemeSelectModalProps> = ({
 
                 {/* Theme List */}
                 <div className="flex-1 min-h-0 overflow-y-auto p-4">
-                    {/* Dark Themes Section */}
-                    <div className="mb-4">
-                        <div className="text-[10px] uppercase tracking-wider text-muted-foreground mb-2 font-semibold px-1">
-                            {t('settings.terminal.themeModal.darkThemes')}
-                        </div>
-                        <div className="space-y-1">
-                            {darkThemes.map(theme => (
-                                <ThemeItem
-                                    key={theme.id}
-                                    theme={theme}
-                                    isSelected={selectedThemeId === theme.id}
-                                    onSelect={handleThemeSelect}
-                                />
-                            ))}
-                        </div>
-                    </div>
-
-                    {/* Light Themes Section */}
-                    <div>
-                        <div className="text-[10px] uppercase tracking-wider text-muted-foreground mb-2 font-semibold px-1">
-                            {t('settings.terminal.themeModal.lightThemes')}
-                        </div>
-                        <div className="space-y-1">
-                            {lightThemes.map(theme => (
-                                <ThemeItem
-                                    key={theme.id}
-                                    theme={theme}
-                                    isSelected={selectedThemeId === theme.id}
-                                    onSelect={handleThemeSelect}
-                                />
-                            ))}
-                        </div>
-                    </div>
-
-                    {/* Custom Themes Section */}
-                    {customThemes.length > 0 && (
-                        <div className="mt-4">
-                            <div className="text-[10px] uppercase tracking-wider text-muted-foreground mb-2 font-semibold px-1">
-                                {t('terminal.customTheme.section')}
-                            </div>
-                            <div className="space-y-1">
-                                {customThemes.map(theme => (
-                                    <ThemeItem
-                                        key={theme.id}
-                                        theme={theme}
-                                        isSelected={selectedThemeId === theme.id}
-                                        onSelect={handleThemeSelect}
-                                    />
-                                ))}
-                            </div>
-                        </div>
-                    )}
+                    <ThemeList
+                        selectedThemeId={selectedThemeId}
+                        onSelect={handleThemeSelect}
+                    />
                 </div>
 
                 {/* Footer */}

components/settings/tabs/SettingsAITab.tsx

@@ -8,7 +8,7 @@
  *   - SafetySettings
  */
 import { Bot, Globe } from "lucide-react";
-import React, { useCallback, useEffect, useMemo, useState } from "react";
+import React, { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import type {
   AIPermissionMode,
   AIProviderId,
@@ -16,8 +16,12 @@ import type {
   ProviderConfig,
   WebSearchConfig,
 } from "../../../infrastructure/ai/types";
+import {
+  getManagedAgentStoredPath,
+  matchesManagedAgentConfig,
+  type ManagedAgentKey,
+} from "../../../infrastructure/ai/managedAgents";
 import { PROVIDER_PRESETS } from "../../../infrastructure/ai/types";
-import { useAgentDiscovery } from "../../../application/state/useAgentDiscovery";
 import { useI18n } from "../../../application/i18n/I18nProvider";
 import { TabsContent } from "../../ui/tabs";
 import { Select, SettingRow } from "../settings-ui";
@@ -38,6 +42,7 @@ import { ProviderCard } from "./ai/ProviderCard";
 import { AddProviderDropdown } from "./ai/AddProviderDropdown";
 import { CodexConnectionCard } from "./ai/CodexConnectionCard";
 import { ClaudeCodeCard } from "./ai/ClaudeCodeCard";
+import { CopilotCliCard } from "./ai/CopilotCliCard";
 import { SafetySettings } from "./ai/SafetySettings";
 import { WebSearchSettings } from "./ai/WebSearchSettings";
 
@@ -70,6 +75,54 @@ interface SettingsAITabProps {
   setWebSearchConfig: (config: WebSearchConfig | null) => void;
 }
 
+function areExternalAgentListsEqual(
+  left: ExternalAgentConfig[],
+  right: ExternalAgentConfig[],
+): boolean {
+  if (left.length !== right.length) return false;
+  return left.every((agent, index) => JSON.stringify(agent) === JSON.stringify(right[index]));
+}
+
+function buildManagedAgentState(
+  prevAgents: ExternalAgentConfig[],
+  defaultAgentId: string,
+  agentKey: ManagedAgentKey,
+  pathInfo: AgentPathInfo | null,
+): { agents: ExternalAgentConfig[]; defaultAgentId: string } {
+  const managedId = `discovered_${agentKey}`;
+  const managedAgents = prevAgents.filter((agent) => matchesManagedAgentConfig(agent, agentKey));
+  const otherAgents = prevAgents.filter((agent) => !matchesManagedAgentConfig(agent, agentKey));
+  const storedPath = getManagedAgentStoredPath(prevAgents, agentKey);
+
+  if (!pathInfo?.available || !pathInfo.path) {
+    return {
+      agents: storedPath ? prevAgents : otherAgents,
+      defaultAgentId: storedPath
+        ? defaultAgentId
+        : managedAgents.some((agent) => agent.id === defaultAgentId)
+          ? "catty"
+          : defaultAgentId,
+    };
+  }
+
+  const existingManaged = managedAgents.find((agent) => agent.id === managedId);
+  const defaults = AGENT_DEFAULTS[agentKey];
+  const nextManagedAgent: ExternalAgentConfig = {
+    ...existingManaged,
+    ...defaults,
+    id: managedId,
+    command: pathInfo.path,
+    enabled: managedAgents.length === 0 ? true : managedAgents.some((agent) => agent.enabled),
+  };
+
+  return {
+    agents: [...otherAgents, nextManagedAgent],
+    defaultAgentId: managedAgents.some((agent) => agent.id === defaultAgentId)
+      ? managedId
+      : defaultAgentId,
+  };
+}
+
 // ---------------------------------------------------------------------------
 // Main Tab Component
 // ---------------------------------------------------------------------------
@@ -113,58 +166,44 @@ const SettingsAITab: React.FC<SettingsAITabProps> = ({
   const [claudePathInfo, setClaudePathInfo] = useState<AgentPathInfo | null>(null);
   const [claudeCustomPath, setClaudeCustomPath] = useState("");
   const [isResolvingClaude, setIsResolvingClaude] = useState(false);
+  const initialManagedPathsRef = useRef<{
+    codex: string;
+    claude: string;
+    copilot: string;
+  } | null>(null);
+  if (!initialManagedPathsRef.current) {
+    initialManagedPathsRef.current = {
+      codex: getManagedAgentStoredPath(externalAgents, "codex") ?? "",
+      claude: getManagedAgentStoredPath(externalAgents, "claude") ?? "",
+      copilot: getManagedAgentStoredPath(externalAgents, "copilot") ?? "",
+    };
+  }
 
-  const {
-    discoveredAgents,
-    isDiscovering,
-    enableAgent,
-  } = useAgentDiscovery(externalAgents, setExternalAgents);
+  const [copilotPathInfo, setCopilotPathInfo] = useState<AgentPathInfo | null>(null);
+  const [copilotCustomPath, setCopilotCustomPath] = useState("");
+  const [isResolvingCopilot, setIsResolvingCopilot] = useState(false);
 
-  // Derive path info from discovery results
-  useEffect(() => {
-    if (isDiscovering) return;
+  // Ref to read current defaultAgentId without adding it as a dependency.
+  const defaultAgentIdRef = useRef(defaultAgentId);
+  defaultAgentIdRef.current = defaultAgentId;
 
-    const codex = discoveredAgents.find((a) => a.command === "codex");
-    setCodexPathInfo(
-      codex
-        ? { path: codex.path, version: codex.version, available: true }
-        : { path: null, version: null, available: false },
-    );
-
-    const claude = discoveredAgents.find((a) => a.command === "claude");
-    setClaudePathInfo(
-      claude
-        ? { path: claude.path, version: claude.version, available: true }
-        : { path: null, version: null, available: false },
-    );
-  }, [isDiscovering, discoveredAgents]);
-
-  // Auto-register discovered agents in externalAgents
-  useEffect(() => {
-    if (isDiscovering || discoveredAgents.length === 0) return;
-
-    setExternalAgents((prev) => {
-      const agentsToRegister: ExternalAgentConfig[] = [];
-
-      for (const da of discoveredAgents) {
-        if (da.command !== "codex" && da.command !== "claude") continue;
-        const agentId = `discovered_${da.command}`;
-        if (prev.some((ea) => ea.id === agentId)) continue;
-        agentsToRegister.push(enableAgent(da));
-      }
-
-      return agentsToRegister.length > 0 ? [...prev, ...agentsToRegister] : prev;
-    });
-  }, [isDiscovering, discoveredAgents, enableAgent, setExternalAgents]);
-
-  // Validate a custom path for an agent
-  const handleCheckCustomPath = useCallback(async (agentKey: "codex" | "claude") => {
+  const resolveAgentPath = useCallback(async (
+    agentKey: ManagedAgentKey,
+    customPath = "",
+  ) => {
     const bridge = getBridge();
-    if (!bridge?.aiResolveCli) return;
+    if (!bridge?.aiResolveCli) return null;
 
-    const customPath = agentKey === "codex" ? codexCustomPath : claudeCustomPath;
-    const setInfo = agentKey === "codex" ? setCodexPathInfo : setClaudePathInfo;
-    const setResolving = agentKey === "codex" ? setIsResolvingCodex : setIsResolvingClaude;
+    const setInfo = agentKey === "codex"
+      ? setCodexPathInfo
+      : agentKey === "claude"
+        ? setClaudePathInfo
+        : setCopilotPathInfo;
+    const setResolving = agentKey === "codex"
+      ? setIsResolvingCodex
+      : agentKey === "claude"
+        ? setIsResolvingClaude
+        : setIsResolvingCopilot;
 
     setResolving(true);
     try {
@@ -174,32 +213,48 @@ const SettingsAITab: React.FC<SettingsAITabProps> = ({
       });
       setInfo(result);
 
-      // Register/update in externalAgents if valid
-      if (result.available && result.path) {
-        const agentId = `discovered_${agentKey}`;
-        const defaults = AGENT_DEFAULTS[agentKey];
-        setExternalAgents((prev) => {
-          const idx = prev.findIndex((a) => a.id === agentId);
-          const config: ExternalAgentConfig = {
-            id: agentId,
-            command: result.path!,
-            enabled: true,
-            ...defaults,
-          };
-          if (idx >= 0) {
-            const updated = [...prev];
-            updated[idx] = { ...updated[idx], command: result.path! };
-            return updated;
-          }
-          return [...prev, config];
-        });
+      // Consolidate managed agent entries using the callback form of
+      // setExternalAgents so we never depend on externalAgents directly.
+      // All three agents resolve concurrently on mount — React runs
+      // state updater callbacks sequentially, so updating the ref inside
+      // ensures later calls see earlier defaultAgentId changes.
+      let nextDefaultId: string | null = null;
+      setExternalAgents((prev) => {
+        const state = buildManagedAgentState(prev, defaultAgentIdRef.current, agentKey, result);
+        if (state.defaultAgentId !== defaultAgentIdRef.current) {
+          nextDefaultId = state.defaultAgentId;
+          defaultAgentIdRef.current = state.defaultAgentId;
+        }
+        return areExternalAgentListsEqual(prev, state.agents) ? prev : state.agents;
+      });
+      if (nextDefaultId !== null) {
+        setDefaultAgentId(nextDefaultId);
       }
+
+      return result;
     } catch (err) {
       console.error("Path resolution failed:", err);
+      return null;
     } finally {
       setResolving(false);
     }
-  }, [codexCustomPath, claudeCustomPath, setExternalAgents]);
+  }, [setExternalAgents, setDefaultAgentId]);
+
+  useEffect(() => {
+    void resolveAgentPath("codex", initialManagedPathsRef.current?.codex ?? "");
+    void resolveAgentPath("claude", initialManagedPathsRef.current?.claude ?? "");
+    void resolveAgentPath("copilot", initialManagedPathsRef.current?.copilot ?? "");
+  }, [resolveAgentPath]);
+
+  // Validate a custom path for an agent
+  const handleCheckCustomPath = useCallback(async (agentKey: ManagedAgentKey) => {
+    const customPath = agentKey === "codex"
+      ? codexCustomPath
+      : agentKey === "claude"
+        ? claudeCustomPath
+        : copilotCustomPath;
+    await resolveAgentPath(agentKey, customPath);
+  }, [claudeCustomPath, codexCustomPath, copilotCustomPath, resolveAgentPath]);
 
   // Add a new provider from preset
   const handleAddProvider = useCallback(
@@ -457,7 +512,7 @@ const SettingsAITab: React.FC<SettingsAITabProps> = ({
 
             <CodexConnectionCard
               pathInfo={codexPathInfo}
-              isResolvingPath={isDiscovering || isResolvingCodex}
+              isResolvingPath={isResolvingCodex}
               customPath={codexCustomPath}
               onCustomPathChange={setCodexCustomPath}
               onRecheckPath={() => void handleCheckCustomPath("codex")}
@@ -483,13 +538,29 @@ const SettingsAITab: React.FC<SettingsAITabProps> = ({
 
             <ClaudeCodeCard
               pathInfo={claudePathInfo}
-              isResolvingPath={isDiscovering || isResolvingClaude}
+              isResolvingPath={isResolvingClaude}
               customPath={claudeCustomPath}
               onCustomPathChange={setClaudeCustomPath}
               onRecheckPath={() => void handleCheckCustomPath("claude")}
             />
           </div>
 
+          {/* -- GitHub Copilot CLI Section -- */}
+          <div className="space-y-4">
+            <div className="flex items-center gap-2">
+              <ProviderIconBadge providerId="copilot" size="sm" />
+              <h3 className="text-base font-medium">{t('ai.copilot.title')}</h3>
+            </div>
+
+            <CopilotCliCard
+              pathInfo={copilotPathInfo}
+              isResolvingPath={isResolvingCopilot}
+              customPath={copilotCustomPath}
+              onCustomPathChange={setCopilotCustomPath}
+              onRecheckPath={() => void handleCheckCustomPath("copilot")}
+            />
+          </div>
+
           {/* -- Default Agent Section -- */}
           {agentOptions.length > 1 && (
             <div className="space-y-4">
@@ -507,7 +578,7 @@ const SettingsAITab: React.FC<SettingsAITabProps> = ({
                     value={defaultAgentId}
                     options={agentOptions}
                     onChange={setDefaultAgentId}
-                    className="w-48"
+                    className="w-64"
                   />
                 </SettingRow>
               </div>

components/settings/tabs/SettingsAppearanceTab.tsx

@@ -25,6 +25,8 @@ export default function SettingsAppearanceTab(props: {
   setUiLanguage: (language: string) => void;
   customCSS: string;
   setCustomCSS: (css: string) => void;
+  isImmersive?: boolean;
+  onToggleImmersive?: () => void;
 }) {
   const { t } = useI18n();
   const availableUIFonts = useAvailableUIFonts();
@@ -45,6 +47,8 @@ export default function SettingsAppearanceTab(props: {
     setUiLanguage,
     customCSS,
     setCustomCSS,
+    isImmersive,
+    onToggleImmersive,
   } = props;
 
   const getHslStyle = useCallback((hsl: string) => ({ backgroundColor: `hsl(${hsl})` }), []);

components/settings/tabs/SettingsFileAssociationsTab.tsx

@@ -28,13 +28,12 @@ const getOpenerLabel = (
 
 export default function SettingsFileAssociationsTab() {
   const { t } = useI18n();
-  const { getAllAssociations, removeAssociation, setOpenerForExtension } = useSftpFileAssociations();
-  const { sftpDoubleClickBehavior, setSftpDoubleClickBehavior, sftpAutoSync, setSftpAutoSync, sftpShowHiddenFiles, setSftpShowHiddenFiles, sftpUseCompressedUpload, setSftpUseCompressedUpload, sftpAutoOpenSidebar, setSftpAutoOpenSidebar } = useSettingsState();
+  const { getAllAssociations, removeAssociation, setOpenerForExtension, getDefaultOpener, setDefaultOpener, removeDefaultOpener } = useSftpFileAssociations();
+  const { sftpDoubleClickBehavior, setSftpDoubleClickBehavior, sftpAutoSync, setSftpAutoSync, sftpShowHiddenFiles, setSftpShowHiddenFiles, sftpUseCompressedUpload, setSftpUseCompressedUpload, sftpAutoOpenSidebar, setSftpAutoOpenSidebar, sftpDefaultViewMode, setSftpDefaultViewMode, sftpTransferConcurrency, setSftpTransferConcurrency } = useSettingsState();
   const associations = getAllAssociations();
+  const defaultOpener = getDefaultOpener();
   const [editingExtension, setEditingExtension] = useState<string | null>(null);
-
-  // Debug log for Settings page
-  console.log('[SettingsFileAssociationsTab] Rendering with', associations.length, 'associations:', associations);
+  const [isSelectingDefaultApp, setIsSelectingDefaultApp] = useState(false);
 
   const handleRemove = useCallback((extension: string) => {
     if (confirm(t('settings.sftpFileAssociations.removeConfirm', { ext: extension === 'file' ? t('sftp.opener.noExtension') : extension }))) {
@@ -42,6 +41,22 @@ export default function SettingsFileAssociationsTab() {
     }
   }, [removeAssociation, t]);
 
+  const handleSelectDefaultSystemApp = useCallback(async () => {
+    setIsSelectingDefaultApp(true);
+    try {
+      const bridge = netcattyBridge.get();
+      if (!bridge?.selectApplication) return;
+      const result = await bridge.selectApplication();
+      if (result) {
+        setDefaultOpener('system-app', { path: result.path, name: result.name });
+      }
+    } catch (e) {
+      console.error('Failed to select application:', e);
+    } finally {
+      setIsSelectingDefaultApp(false);
+    }
+  }, [setDefaultOpener]);
+
   const handleEdit = useCallback(async (extension: string) => {
     setEditingExtension(extension);
     try {
@@ -133,6 +148,76 @@ export default function SettingsFileAssociationsTab() {
           </div>
         </div>
 
+        {/* Default view mode section */}
+        <div className="space-y-4">
+          <SectionHeader title={t('settings.sftp.defaultViewMode')} />
+          <p className="text-sm text-muted-foreground">
+            {t('settings.sftp.defaultViewMode.desc')}
+          </p>
+          <div className="space-y-3">
+            <button
+              onClick={() => setSftpDefaultViewMode('list')}
+              className={cn(
+                "w-full text-left p-4 rounded-lg border-2 transition-colors",
+                sftpDefaultViewMode === 'list'
+                  ? "border-primary bg-primary/5"
+                  : "border-border hover:border-primary/50 hover:bg-secondary/50"
+              )}
+            >
+              <div className="flex items-start gap-3">
+                <div className={cn(
+                  "h-5 w-5 rounded-full border-2 flex items-center justify-center mt-0.5 shrink-0",
+                  sftpDefaultViewMode === 'list'
+                    ? "border-primary"
+                    : "border-muted-foreground/30"
+                )}>
+                  {sftpDefaultViewMode === 'list' && (
+                    <div className="h-2.5 w-2.5 rounded-full bg-primary" />
+                  )}
+                </div>
+                <div className="space-y-1">
+                  <Label className="font-medium cursor-pointer">
+                    {t('settings.sftp.defaultViewMode.list')}
+                  </Label>
+                  <p className="text-sm text-muted-foreground">
+                    {t('settings.sftp.defaultViewMode.listDesc')}
+                  </p>
+                </div>
+              </div>
+            </button>
+            <button
+              onClick={() => setSftpDefaultViewMode('tree')}
+              className={cn(
+                "w-full text-left p-4 rounded-lg border-2 transition-colors",
+                sftpDefaultViewMode === 'tree'
+                  ? "border-primary bg-primary/5"
+                  : "border-border hover:border-primary/50 hover:bg-secondary/50"
+              )}
+            >
+              <div className="flex items-start gap-3">
+                <div className={cn(
+                  "h-5 w-5 rounded-full border-2 flex items-center justify-center mt-0.5 shrink-0",
+                  sftpDefaultViewMode === 'tree'
+                    ? "border-primary"
+                    : "border-muted-foreground/30"
+                )}>
+                  {sftpDefaultViewMode === 'tree' && (
+                    <div className="h-2.5 w-2.5 rounded-full bg-primary" />
+                  )}
+                </div>
+                <div className="space-y-1">
+                  <Label className="font-medium cursor-pointer">
+                    {t('settings.sftp.defaultViewMode.tree')}
+                  </Label>
+                  <p className="text-sm text-muted-foreground">
+                    {t('settings.sftp.defaultViewMode.treeDesc')}
+                  </p>
+                </div>
+              </div>
+            </button>
+          </div>
+        </div>
+
         {/* Auto-sync section */}
         <div className="space-y-4">
           <SectionHeader title={t('settings.sftp.autoSync')} />
@@ -293,6 +378,117 @@ export default function SettingsFileAssociationsTab() {
           </button>
         </div>
 
+        {/* Transfer concurrency section */}
+        <div className="space-y-4">
+          <SectionHeader title={t('settings.sftp.transferConcurrency')} />
+          <p className="text-sm text-muted-foreground">
+            {t('settings.sftp.transferConcurrency.desc')}
+          </p>
+          <div className="flex items-center gap-3">
+            <input
+              type="range"
+              min={1}
+              max={16}
+              step={1}
+              value={sftpTransferConcurrency}
+              onChange={(e) => setSftpTransferConcurrency(Number(e.target.value))}
+              className="flex-1 accent-primary"
+            />
+            <span className="text-sm font-mono w-6 text-center">{sftpTransferConcurrency}</span>
+          </div>
+        </div>
+
+        {/* Default opener section */}
+        <div className="space-y-4">
+          <SectionHeader title={t('settings.sftp.defaultOpener')} />
+          <p className="text-sm text-muted-foreground">
+            {t('settings.sftp.defaultOpener.desc')}
+          </p>
+          <div className="space-y-3">
+            <button
+              onClick={() => removeDefaultOpener()}
+              className={cn(
+                "w-full text-left p-4 rounded-lg border-2 transition-colors",
+                !defaultOpener
+                  ? "border-primary bg-primary/5"
+                  : "border-border hover:border-primary/50 hover:bg-secondary/50"
+              )}
+            >
+              <div className="flex items-start gap-3">
+                <div className={cn(
+                  "h-5 w-5 rounded-full border-2 flex items-center justify-center mt-0.5 shrink-0",
+                  !defaultOpener ? "border-primary" : "border-muted-foreground/30"
+                )}>
+                  {!defaultOpener && <div className="h-2.5 w-2.5 rounded-full bg-primary" />}
+                </div>
+                <div className="space-y-1">
+                  <Label className="font-medium cursor-pointer">
+                    {t('settings.sftp.defaultOpener.ask')}
+                  </Label>
+                  <p className="text-sm text-muted-foreground">
+                    {t('settings.sftp.defaultOpener.askDesc')}
+                  </p>
+                </div>
+              </div>
+            </button>
+            <button
+              onClick={() => setDefaultOpener('builtin-editor')}
+              className={cn(
+                "w-full text-left p-4 rounded-lg border-2 transition-colors",
+                defaultOpener?.openerType === 'builtin-editor'
+                  ? "border-primary bg-primary/5"
+                  : "border-border hover:border-primary/50 hover:bg-secondary/50"
+              )}
+            >
+              <div className="flex items-start gap-3">
+                <div className={cn(
+                  "h-5 w-5 rounded-full border-2 flex items-center justify-center mt-0.5 shrink-0",
+                  defaultOpener?.openerType === 'builtin-editor' ? "border-primary" : "border-muted-foreground/30"
+                )}>
+                  {defaultOpener?.openerType === 'builtin-editor' && <div className="h-2.5 w-2.5 rounded-full bg-primary" />}
+                </div>
+                <div className="space-y-1">
+                  <Label className="font-medium cursor-pointer">
+                    {t('sftp.opener.builtInEditor')}
+                  </Label>
+                  <p className="text-sm text-muted-foreground">
+                    {t('settings.sftp.defaultOpener.builtInDesc')}
+                  </p>
+                </div>
+              </div>
+            </button>
+            <button
+              onClick={handleSelectDefaultSystemApp}
+              disabled={isSelectingDefaultApp}
+              className={cn(
+                "w-full text-left p-4 rounded-lg border-2 transition-colors",
+                defaultOpener?.openerType === 'system-app'
+                  ? "border-primary bg-primary/5"
+                  : "border-border hover:border-primary/50 hover:bg-secondary/50"
+              )}
+            >
+              <div className="flex items-start gap-3">
+                <div className={cn(
+                  "h-5 w-5 rounded-full border-2 flex items-center justify-center mt-0.5 shrink-0",
+                  defaultOpener?.openerType === 'system-app' ? "border-primary" : "border-muted-foreground/30"
+                )}>
+                  {defaultOpener?.openerType === 'system-app' && <div className="h-2.5 w-2.5 rounded-full bg-primary" />}
+                </div>
+                <div className="space-y-1">
+                  <Label className="font-medium cursor-pointer">
+                    {defaultOpener?.openerType === 'system-app' && defaultOpener.systemApp
+                      ? defaultOpener.systemApp.name
+                      : t('settings.sftp.defaultOpener.systemApp')}
+                  </Label>
+                  <p className="text-sm text-muted-foreground">
+                    {t('settings.sftp.defaultOpener.systemAppDesc')}
+                  </p>
+                </div>
+              </div>
+            </button>
+          </div>
+        </div>
+
         {/* File associations section */}
         <div className="space-y-4">
           <SectionHeader title={t('settings.sftpFileAssociations.title')} />

components/settings/tabs/SettingsSyncTab.tsx

@@ -1,8 +1,8 @@
 import React, { useCallback } from "react";
 import type { PortForwardingRule } from "../../../domain/models";
 import type { SyncPayload } from "../../../domain/sync";
-import { buildSyncPayload, applySyncPayload } from "../../../domain/syncPayload";
-import type { SyncableVaultData } from "../../../domain/syncPayload";
+import { buildSyncPayload, applySyncPayload } from "../../../application/syncPayload";
+import type { SyncableVaultData } from "../../../application/syncPayload";
 import { STORAGE_KEY_PORT_FORWARDING } from "../../../infrastructure/config/storageKeys";
 import { localStorageAdapter } from "../../../infrastructure/persistence/localStorageAdapter";
 import { getEffectiveKnownHosts } from "../../../infrastructure/syncHelpers";

components/settings/tabs/SettingsSystemTab.tsx

@@ -1,7 +1,7 @@
 /**
  * Settings System Tab - System information, temp file management, session logs, and global hotkey
  */
-import { Download, ExternalLink, FileText, FolderOpen, HardDrive, Keyboard, RefreshCw, RotateCcw, Trash2 } from "lucide-react";
+import { AlertTriangle, ChevronDown, ChevronRight, Download, ExternalLink, FileText, FolderOpen, HardDrive, Keyboard, RefreshCw, RotateCcw, Trash2 } from "lucide-react";
 import React, { useCallback, useEffect, useState } from "react";
 import { useI18n } from "../../../application/i18n/I18nProvider";
 import { getCredentialProtectionAvailability } from "../../../infrastructure/services/credentialProtection";
@@ -13,6 +13,31 @@ import { Button } from "../../ui/button";
 import { Toggle, Select, SettingRow } from "../settings-ui";
 import { cn } from "../../../lib/utils";
 
+interface CrashLogFile {
+  fileName: string;
+  date: string;
+  size: number;
+  entryCount: number;
+}
+
+interface CrashLogEntry {
+  timestamp: string;
+  source: string;
+  message: string;
+  stack?: string;
+  errorMeta?: Record<string, unknown>;
+  extra?: Record<string, unknown>;
+  pid?: number;
+  platform?: string;
+  arch?: string;
+  version?: string;
+  electronVersion?: string;
+  osVersion?: string;
+  memoryMB?: { rss: number; heapUsed: number; heapTotal: number };
+  activeSessionCount?: number;
+  uptimeSeconds?: number;
+}
+
 interface TempDirInfo {
   path: string;
   fileCount: number;
@@ -64,6 +89,7 @@ interface SettingsSystemTabProps {
   checkNow: () => Promise<unknown>;
   installUpdate: () => void;
   openReleasePage: () => void;
+  startDownload: () => void;
 }
 
 const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
@@ -86,6 +112,7 @@ const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
   checkNow,
   installUpdate,
   openReleasePage,
+  startDownload,
 }) => {
   const { t } = useI18n();
   const isMac = typeof navigator !== "undefined" && /Mac/i.test(navigator.platform);
@@ -98,6 +125,12 @@ const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
   const [hotkeyError, setHotkeyError] = useState<string | null>(null);
   const [credentialsAvailable, setCredentialsAvailable] = useState<boolean | null>(null);
   const [isCheckingCredentials, setIsCheckingCredentials] = useState(false);
+  const [crashLogs, setCrashLogs] = useState<CrashLogFile[]>([]);
+  const [isLoadingCrashLogs, setIsLoadingCrashLogs] = useState(false);
+  const [expandedLog, setExpandedLog] = useState<string | null>(null);
+  const [logEntries, setLogEntries] = useState<CrashLogEntry[]>([]);
+  const [isClearingCrashLogs, setIsClearingCrashLogs] = useState(false);
+  const [crashLogClearResult, setCrashLogClearResult] = useState<{ deletedCount: number } | null>(null);
 
   const [appVersion, setAppVersion] = useState('');
 
@@ -144,6 +177,73 @@ const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
     void loadCredentialProtectionStatus();
   }, [loadCredentialProtectionStatus]);
 
+  const loadCrashLogs = useCallback(async () => {
+    const bridge = netcattyBridge.get();
+    if (!bridge?.getCrashLogs) return;
+    setIsLoadingCrashLogs(true);
+    try {
+      const logs = await bridge.getCrashLogs();
+      setCrashLogs(logs);
+    } catch (err) {
+      console.error("[SettingsSystemTab] Failed to load crash logs:", err);
+    } finally {
+      setIsLoadingCrashLogs(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    void loadCrashLogs();
+  }, [loadCrashLogs]);
+
+  const expandRequestRef = React.useRef(0);
+  const handleExpandCrashLog = useCallback(async (fileName: string) => {
+    if (expandedLog === fileName) {
+      setExpandedLog(null);
+      setLogEntries([]);
+      return;
+    }
+    const bridge = netcattyBridge.get();
+    if (!bridge?.readCrashLog) return;
+    const requestId = ++expandRequestRef.current;
+    // Optimistically show expanded state while loading
+    setExpandedLog(fileName);
+    setLogEntries([]);
+    try {
+      const entries = await bridge.readCrashLog(fileName);
+      // Discard if user clicked a different file while awaiting
+      if (expandRequestRef.current !== requestId) return;
+      setLogEntries(entries);
+    } catch (err) {
+      if (expandRequestRef.current !== requestId) return;
+      console.error("[SettingsSystemTab] Failed to read crash log:", err);
+    }
+  }, [expandedLog]);
+
+  const handleClearCrashLogs = useCallback(async () => {
+    const bridge = netcattyBridge.get();
+    if (!bridge?.clearCrashLogs) return;
+    setIsClearingCrashLogs(true);
+    setCrashLogClearResult(null);
+    try {
+      const result = await bridge.clearCrashLogs();
+      setCrashLogClearResult(result);
+      setExpandedLog(null);
+      setLogEntries([]);
+      // Reload the list so partial failures still show remaining files
+      await loadCrashLogs();
+    } catch (err) {
+      console.error("[SettingsSystemTab] Failed to clear crash logs:", err);
+    } finally {
+      setIsClearingCrashLogs(false);
+    }
+  }, [loadCrashLogs]);
+
+  const handleOpenCrashLogsDir = useCallback(async () => {
+    const bridge = netcattyBridge.get();
+    if (!bridge?.openCrashLogsDir) return;
+    await bridge.openCrashLogsDir();
+  }, []);
+
   const handleClearTempFiles = useCallback(async () => {
     const bridge = netcattyBridge.get();
     if (!bridge?.clearTempDir) return;
@@ -365,7 +465,16 @@ const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
                   </Button>
                 )}
 
-                {/* Open releases — shown when update found on unsupported platform, or on check error */}
+                {/* Download button — shown when update found and no download in progress */}
+                {updateState.autoDownloadStatus === 'idle' &&
+                  updateState.manualCheckStatus === 'available' && (
+                  <Button variant="outline" size="sm" onClick={startDownload}>
+                    <Download size={14} className="mr-1.5" />
+                    {t('update.downloadNow')}
+                  </Button>
+                )}
+
+                {/* Open releases — fallback for unsupported platforms or check errors */}
                 {updateState.autoDownloadStatus === 'idle' &&
                   (updateState.manualCheckStatus === 'available' || updateState.manualCheckStatus === 'error' || (updateState.manualCheckStatus === 'idle' && updateState.hasUpdate)) && (
                   <Button variant="ghost" size="sm" onClick={openReleasePage}>
@@ -449,6 +558,148 @@ const SettingsSystemTab: React.FC<SettingsSystemTabProps> = ({
             </div>
           </div>
 
+          {/* Crash Logs Section */}
+          <div className="space-y-4">
+            <div className="flex items-center gap-2">
+              <AlertTriangle size={18} className="text-muted-foreground" />
+              <h3 className="text-base font-medium">{t("settings.system.crashLogs.title")}</h3>
+            </div>
+
+            <div className="bg-muted/30 rounded-lg p-4 space-y-3">
+              <p className="text-sm text-muted-foreground">
+                {t("settings.system.crashLogs.description")}
+              </p>
+
+              {crashLogs.length === 0 && !isLoadingCrashLogs && (
+                <p className="text-sm text-muted-foreground italic">
+                  {t("settings.system.crashLogs.noLogs")}
+                </p>
+              )}
+
+              {crashLogs.length > 0 && (
+                <div className="space-y-2">
+                  {crashLogs.map((log) => (
+                    <div key={log.fileName} className="border border-border/60 rounded-md overflow-hidden">
+                      <button
+                        onClick={() => handleExpandCrashLog(log.fileName)}
+                        className="w-full flex items-center justify-between px-3 py-2 text-sm hover:bg-muted/50 transition-colors"
+                      >
+                        <div className="flex items-center gap-2">
+                          {expandedLog === log.fileName ? <ChevronDown size={14} /> : <ChevronRight size={14} />}
+                          <span className="font-mono">{log.date}</span>
+                          <span className="text-muted-foreground">
+                            ({t("settings.system.crashLogs.entries").replace("{count}", String(log.entryCount))})
+                          </span>
+                        </div>
+                        <span className="text-xs text-muted-foreground">{formatBytes(log.size)}</span>
+                      </button>
+
+                      {expandedLog === log.fileName && logEntries.length > 0 && (
+                        <div className="border-t border-border/60 max-h-64 overflow-y-auto">
+                          {logEntries.map((entry, idx) => (
+                            <div key={idx} className="px-3 py-2 text-xs border-b border-border/30 last:border-b-0 space-y-1">
+                              <div className="flex items-center gap-3 flex-wrap">
+                                <span className="font-mono text-muted-foreground">
+                                  {new Date(entry.timestamp).toLocaleTimeString()}
+                                </span>
+                                <span className="px-1.5 py-0.5 rounded bg-destructive/10 text-destructive font-medium">
+                                  {entry.source}
+                                </span>
+                              </div>
+                              <p className="font-mono break-all">{entry.message}</p>
+                              {entry.errorMeta && Object.keys(entry.errorMeta).length > 0 && (
+                                <div className="flex items-center gap-2 flex-wrap">
+                                  {Object.entries(entry.errorMeta).map(([k, v]) => (
+                                    <span key={k} className="px-1.5 py-0.5 rounded bg-muted font-mono">
+                                      {k}={String(v)}
+                                    </span>
+                                  ))}
+                                </div>
+                              )}
+                              {entry.extra && Object.keys(entry.extra).length > 0 && (
+                                <div className="flex items-center gap-2 flex-wrap">
+                                  {Object.entries(entry.extra).map(([k, v]) => (
+                                    <span key={k} className="px-1.5 py-0.5 rounded bg-muted font-mono">
+                                      {k}={String(v)}
+                                    </span>
+                                  ))}
+                                </div>
+                              )}
+                              {(() => {
+                                const parts: string[] = [];
+                                if (entry.version) parts.push(`v${entry.version}`);
+                                if (entry.electronVersion) parts.push(`Electron ${entry.electronVersion}`);
+                                if (entry.platform) parts.push(`${entry.platform}/${entry.arch}`);
+                                if (entry.osVersion) parts.push(`OS ${entry.osVersion}`);
+                                if (entry.pid) parts.push(`PID ${entry.pid}`);
+                                if (entry.activeSessionCount != null && entry.activeSessionCount >= 0) parts.push(`Sessions: ${entry.activeSessionCount}`);
+                                if (entry.memoryMB) parts.push(`RAM: ${entry.memoryMB.rss}MB`);
+                                if (entry.uptimeSeconds != null) parts.push(`Uptime: ${entry.uptimeSeconds}s`);
+                                const text = parts.join('  ');
+                                return text ? (
+                                  <div className="text-muted-foreground truncate" title={text}>
+                                    {text}
+                                  </div>
+                                ) : null;
+                              })()}
+                              {entry.stack && (
+                                <pre className="mt-1 p-2 bg-muted rounded text-[11px] leading-relaxed overflow-x-auto whitespace-pre-wrap break-all text-muted-foreground">
+                                  {entry.stack}
+                                </pre>
+                              )}
+                            </div>
+                          ))}
+                        </div>
+                      )}
+                    </div>
+                  ))}
+                </div>
+              )}
+
+              {/* Actions */}
+              <div className="flex items-center gap-2 pt-2">
+                <Button
+                  variant="outline"
+                  size="sm"
+                  onClick={loadCrashLogs}
+                  disabled={isLoadingCrashLogs}
+                  className="gap-1.5"
+                >
+                  <RefreshCw size={14} className={isLoadingCrashLogs ? "animate-spin" : ""} />
+                  {t("settings.system.refresh")}
+                </Button>
+                <Button
+                  variant="outline"
+                  size="sm"
+                  onClick={handleClearCrashLogs}
+                  disabled={isClearingCrashLogs || crashLogs.length === 0}
+                  className="gap-1.5 text-destructive hover:text-destructive hover:bg-destructive/10"
+                >
+                  <Trash2 size={14} />
+                  {t("settings.system.crashLogs.clear")}
+                </Button>
+                <Button
+                  variant="ghost"
+                  size="icon"
+                  onClick={handleOpenCrashLogsDir}
+                  title={t("settings.system.openFolder")}
+                >
+                  <FolderOpen size={16} />
+                </Button>
+              </div>
+
+              {crashLogClearResult && (
+                <p className="text-sm text-muted-foreground">
+                  {t("settings.system.crashLogs.cleared").replace("{count}", String(crashLogClearResult.deletedCount))}
+                </p>
+              )}
+            </div>
+
+            <p className="text-xs text-muted-foreground">
+              {t("settings.system.crashLogs.hint")}
+            </p>
+          </div>
+
           {/* Temp Directory Section */}
           <div className="space-y-4">
             <div className="flex items-center gap-2">

components/settings/tabs/SettingsTerminalTab.tsx

@@ -84,6 +84,8 @@ export default function SettingsTerminalTab(props: {
     value: TerminalSettings[K],
   ) => void;
   availableFonts: TerminalFont[];
+  workspaceFocusStyle: 'dim' | 'border';
+  setWorkspaceFocusStyle: (style: 'dim' | 'border') => void;
 }) {
   const {
     terminalThemeId,
@@ -95,6 +97,8 @@ export default function SettingsTerminalTab(props: {
     terminalSettings,
     updateTerminalSetting,
     availableFonts,
+    workspaceFocusStyle,
+    setWorkspaceFocusStyle,
   } = props;
   const { t } = useI18n();
 
@@ -114,23 +118,33 @@ export default function SettingsTerminalTab(props: {
       || TERMINAL_THEMES[0];
   }, [terminalThemeId, customThemes]);
 
+  const handleAutocompleteGhostTextChange = useCallback((enabled: boolean) => {
+    updateTerminalSetting("autocompleteGhostText", enabled);
+    if (enabled) {
+      updateTerminalSetting("autocompletePopupMenu", false);
+    }
+  }, [updateTerminalSetting]);
+
+  const handleAutocompletePopupMenuChange = useCallback((enabled: boolean) => {
+    updateTerminalSetting("autocompletePopupMenu", enabled);
+    if (enabled) {
+      updateTerminalSetting("autocompleteGhostText", false);
+    }
+  }, [updateTerminalSetting]);
+
   // Import .itermcolors file
   const importFileRef = useRef<HTMLInputElement>(null);
   const handleImportItermcolors = useCallback((e: React.ChangeEvent<HTMLInputElement>) => {
     const file = e.target.files?.[0];
     if (!file) {
-      console.log('[Settings] No file selected');
       return;
     }
-    console.log('[Settings] File selected:', file.name, 'size:', file.size);
     const name = file.name.replace(/\.(itermcolors|xml)$/i, '');
     const reader = new FileReader();
     reader.onload = () => {
       const xml = reader.result as string;
-      console.log('[Settings] File read successfully, length:', xml.length);
       const parsed = parseItermcolors(xml, name);
       if (parsed) {
-        console.log('[Settings] Theme parsed successfully:', parsed.id, parsed.name);
         customThemeStore.addTheme(parsed);
         setTerminalThemeId(parsed.id);
       } else {
@@ -620,6 +634,13 @@ export default function SettingsTerminalTab(props: {
           <Toggle checked={terminalSettings.scrollOnPaste} onChange={(v) => updateTerminalSetting("scrollOnPaste", v)} />
         </SettingRow>
 
+        <SettingRow
+          label={t("settings.terminal.behavior.smoothScrolling")}
+          description={t("settings.terminal.behavior.smoothScrolling.desc")}
+        >
+          <Toggle checked={terminalSettings.smoothScrolling} onChange={(v) => updateTerminalSetting("smoothScrolling", v)} />
+        </SettingRow>
+
         <SettingRow
           label={t("settings.terminal.behavior.linkModifier")}
           description={t("settings.terminal.behavior.linkModifier.desc")}
@@ -848,6 +869,56 @@ export default function SettingsTerminalTab(props: {
           />
         </SettingRow>
       </div>
+      {/* Autocomplete */}
+      <SectionHeader title={t("settings.terminal.section.workspaceFocus")} />
+      <div className="space-y-1">
+        <SettingRow
+          label={t("settings.terminal.workspaceFocus.style")}
+          description={t("settings.terminal.workspaceFocus.style.desc")}
+        >
+          <Select
+            value={workspaceFocusStyle}
+            onChange={(v) => setWorkspaceFocusStyle(v as 'dim' | 'border')}
+            options={[
+              { value: 'dim', label: t("settings.terminal.workspaceFocus.dim") },
+              { value: 'border', label: t("settings.terminal.workspaceFocus.border") },
+            ]}
+          />
+        </SettingRow>
+      </div>
+
+      <SectionHeader title={t("settings.terminal.section.autocomplete")} />
+      <div className="space-y-0 divide-y divide-border rounded-lg border bg-card px-4">
+        <SettingRow
+          label={t("settings.terminal.autocomplete.enabled")}
+          description={t("settings.terminal.autocomplete.enabled.desc")}
+        >
+          <Toggle
+            checked={terminalSettings.autocompleteEnabled}
+            onChange={(v) => updateTerminalSetting("autocompleteEnabled", v)}
+          />
+        </SettingRow>
+        <SettingRow
+          label={t("settings.terminal.autocomplete.ghostText")}
+          description={t("settings.terminal.autocomplete.ghostText.desc")}
+        >
+          <Toggle
+            checked={terminalSettings.autocompleteGhostText}
+            onChange={handleAutocompleteGhostTextChange}
+            disabled={!terminalSettings.autocompleteEnabled}
+          />
+        </SettingRow>
+        <SettingRow
+          label={t("settings.terminal.autocomplete.popupMenu")}
+          description={t("settings.terminal.autocomplete.popupMenu.desc")}
+        >
+          <Toggle
+            checked={terminalSettings.autocompletePopupMenu}
+            onChange={handleAutocompletePopupMenuChange}
+            disabled={!terminalSettings.autocompleteEnabled}
+          />
+        </SettingRow>
+      </div>
     </SettingsTabContent>
   );
 }

components/settings/tabs/ai/CopilotCliCard.tsx

@@ -0,0 +1,87 @@
+import React from "react";
+import { RefreshCw } from "lucide-react";
+import { useI18n } from "../../../../application/i18n/I18nProvider";
+import { Button } from "../../../ui/button";
+import { cn } from "../../../../lib/utils";
+import type { AgentPathInfo } from "./types";
+import { ProviderIconBadge } from "./ProviderIconBadge";
+
+export const CopilotCliCard: React.FC<{
+  pathInfo: AgentPathInfo | null;
+  isResolvingPath: boolean;
+  customPath: string;
+  onCustomPathChange: (path: string) => void;
+  onRecheckPath: () => void;
+}> = ({
+  pathInfo,
+  isResolvingPath,
+  customPath,
+  onCustomPathChange,
+  onRecheckPath,
+}) => {
+  const { t } = useI18n();
+  const found = pathInfo?.available;
+
+  const statusText = isResolvingPath
+    ? t('ai.copilot.detecting')
+    : found
+      ? t('ai.copilot.detected')
+      : t('ai.copilot.notFound');
+
+  const statusClassName = isResolvingPath
+    ? "text-muted-foreground"
+    : found
+      ? "text-emerald-500"
+      : "text-amber-500";
+
+  return (
+    <div className="rounded-lg border border-border/60 bg-muted/20 p-4 space-y-3">
+      <div className="flex items-start justify-between gap-4">
+        <div className="min-w-0">
+          <div className="flex items-center gap-2">
+            <ProviderIconBadge providerId="copilot" size="sm" />
+            <span className="text-sm font-medium">{t('ai.copilot.title')}</span>
+          </div>
+          <p className="text-xs text-muted-foreground mt-2 leading-5">
+            {t('ai.copilot.description')}
+          </p>
+        </div>
+        <div className={cn("text-xs font-medium shrink-0", statusClassName)}>
+          {statusText}
+        </div>
+      </div>
+
+      {found ? (
+        <div className="flex items-center gap-2 text-xs">
+          <span className="text-muted-foreground">{t('ai.copilot.path')}</span>
+          <span className="font-mono text-foreground truncate">{pathInfo.path}</span>
+          {pathInfo.version && (
+            <>
+              <span className="text-muted-foreground">|</span>
+              <span className="text-muted-foreground">{pathInfo.version}</span>
+            </>
+          )}
+        </div>
+      ) : !isResolvingPath ? (
+        <div className="space-y-2">
+          <p className="text-xs text-amber-500">
+            {t('ai.copilot.notFoundHint')}
+          </p>
+          <div className="flex items-center gap-2">
+            <input
+              type="text"
+              value={customPath}
+              onChange={(e) => onCustomPathChange(e.target.value)}
+              placeholder={t('ai.copilot.customPathPlaceholder')}
+              className="flex-1 h-8 rounded-md border border-input bg-background px-3 text-sm font-mono placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring"
+            />
+            <Button variant="outline" size="sm" onClick={onRecheckPath} disabled={!customPath.trim()}>
+              <RefreshCw size={14} className="mr-1.5" />
+              {t('ai.copilot.check')}
+            </Button>
+          </div>
+        </div>
+      ) : null}
+    </div>
+  );
+};

components/settings/tabs/ai/ProviderConfigForm.tsx

@@ -1,6 +1,6 @@
 import React, { useCallback, useEffect, useState } from "react";
-import { Check, Eye, EyeOff } from "lucide-react";
-import type { ProviderConfig } from "../../../../infrastructure/ai/types";
+import { Check, ChevronDown, ChevronRight, Eye, EyeOff } from "lucide-react";
+import type { ProviderConfig, ProviderAdvancedParams } from "../../../../infrastructure/ai/types";
 import { PROVIDER_PRESETS } from "../../../../infrastructure/ai/types";
 import { encryptField, decryptField } from "../../../../infrastructure/persistence/secureFieldAdapter";
 import { useI18n } from "../../../../application/i18n/I18nProvider";
@@ -20,10 +20,12 @@ export const ProviderConfigForm: React.FC<{
     baseURL: provider.baseURL ?? PROVIDER_PRESETS[provider.providerId]?.defaultBaseURL ?? "",
     defaultModel: provider.defaultModel ?? "",
     skipTLSVerify: provider.skipTLSVerify ?? false,
+    advancedParams: provider.advancedParams ?? {},
   });
   const isCustom = provider.providerId === "custom";
   const [showApiKey, setShowApiKey] = useState(false);
   const [isDecrypting, setIsDecrypting] = useState(false);
+  const [showAdvanced, setShowAdvanced] = useState(false);
 
   const preset = PROVIDER_PRESETS[provider.providerId];
 
@@ -43,11 +45,37 @@ export const ProviderConfigForm: React.FC<{
     }
   }, [provider.apiKey]);
 
+  const [advancedParamRaw, setAdvancedParamRaw] = useState<Record<string, string>>({});
+  const handleAdvancedParam = useCallback((key: keyof ProviderAdvancedParams, raw: string) => {
+    setAdvancedParamRaw((prev) => ({ ...prev, [key]: raw }));
+    setForm((prev) => {
+      const next = { ...prev.advancedParams };
+      if (raw.trim() === "" || raw.trim() === "-") {
+        delete next[key];
+      } else {
+        const num = Number(raw);
+        if (!Number.isNaN(num)) {
+          next[key] = num;
+        }
+      }
+      return { ...prev, advancedParams: next };
+    });
+  }, []);
+
   const handleSave = useCallback(async () => {
+    const cleanedParams: ProviderAdvancedParams = {};
+    const ap = form.advancedParams;
+    if (ap.maxTokens != null && Number.isFinite(ap.maxTokens) && ap.maxTokens > 0) cleanedParams.maxTokens = Math.max(1, Math.round(ap.maxTokens));
+    if (ap.temperature != null) cleanedParams.temperature = Math.min(2, Math.max(0, ap.temperature));
+    if (ap.topP != null) cleanedParams.topP = Math.min(1, Math.max(0, ap.topP));
+    if (ap.frequencyPenalty != null) cleanedParams.frequencyPenalty = Math.min(2, Math.max(-2, ap.frequencyPenalty));
+    if (ap.presencePenalty != null) cleanedParams.presencePenalty = Math.min(2, Math.max(-2, ap.presencePenalty));
+
     const updates: Partial<ProviderConfig> = {
       baseURL: form.baseURL || undefined,
       defaultModel: form.defaultModel || undefined,
       skipTLSVerify: form.skipTLSVerify || undefined,
+      advancedParams: Object.keys(cleanedParams).length > 0 ? cleanedParams : undefined,
       ...(isCustom && form.name.trim() ? { name: form.name.trim() } : {}),
     };
 
@@ -137,6 +165,92 @@ export const ProviderConfigForm: React.FC<{
         <span className="text-xs text-muted-foreground">{t('ai.providers.skipTLSVerify')}</span>
       </label>
 
+      {/* Advanced Parameters */}
+      <div className="space-y-2">
+        <button
+          type="button"
+          onClick={() => setShowAdvanced(!showAdvanced)}
+          className="flex items-center gap-1.5 text-xs font-medium text-muted-foreground hover:text-foreground transition-colors"
+        >
+          {showAdvanced ? <ChevronDown size={14} /> : <ChevronRight size={14} />}
+          {t('ai.providers.advancedParams')}
+        </button>
+        {showAdvanced && (
+          <div className="space-y-2.5 pl-1 border-l-2 border-border/40 ml-1">
+            <p className="text-[11px] text-muted-foreground/70 pl-3">{t('ai.providers.advancedParams.hint')}</p>
+            {/* max_tokens */}
+            <div className="space-y-1 pl-3">
+              <label className="text-xs text-muted-foreground">max_tokens</label>
+              <input
+                type="number"
+                min={1}
+                step={1}
+                value={advancedParamRaw.maxTokens ?? (form.advancedParams.maxTokens != null ? String(form.advancedParams.maxTokens) : "")}
+                onChange={(e) => handleAdvancedParam("maxTokens", e.target.value)}
+                placeholder={t('ai.providers.advancedParams.maxTokens.placeholder')}
+                className="w-full h-8 rounded-md border border-input bg-background px-3 text-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring"
+              />
+            </div>
+            {/* temperature */}
+            <div className="space-y-1 pl-3">
+              <label className="text-xs text-muted-foreground">temperature <span className="text-muted-foreground/50">(0–2)</span></label>
+              <input
+                type="number"
+                min={0}
+                max={2}
+                step={0.1}
+                value={advancedParamRaw.temperature ?? (form.advancedParams.temperature != null ? String(form.advancedParams.temperature) : "")}
+                onChange={(e) => handleAdvancedParam("temperature", e.target.value)}
+                placeholder={t('ai.providers.advancedParams.default')}
+                className="w-full h-8 rounded-md border border-input bg-background px-3 text-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring"
+              />
+            </div>
+            {/* top_p */}
+            <div className="space-y-1 pl-3">
+              <label className="text-xs text-muted-foreground">top_p <span className="text-muted-foreground/50">(0–1)</span></label>
+              <input
+                type="number"
+                min={0}
+                max={1}
+                step={0.05}
+                value={advancedParamRaw.topP ?? (form.advancedParams.topP != null ? String(form.advancedParams.topP) : "")}
+                onChange={(e) => handleAdvancedParam("topP", e.target.value)}
+                placeholder={t('ai.providers.advancedParams.default')}
+                className="w-full h-8 rounded-md border border-input bg-background px-3 text-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring"
+              />
+            </div>
+            {/* frequency_penalty */}
+            <div className="space-y-1 pl-3">
+              <label className="text-xs text-muted-foreground">frequency_penalty <span className="text-muted-foreground/50">(-2–2)</span></label>
+              <input
+                type="number"
+                min={-2}
+                max={2}
+                step={0.1}
+                value={advancedParamRaw.frequencyPenalty ?? (form.advancedParams.frequencyPenalty != null ? String(form.advancedParams.frequencyPenalty) : "")}
+                onChange={(e) => handleAdvancedParam("frequencyPenalty", e.target.value)}
+                placeholder={t('ai.providers.advancedParams.default')}
+                className="w-full h-8 rounded-md border border-input bg-background px-3 text-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring"
+              />
+            </div>
+            {/* presence_penalty */}
+            <div className="space-y-1 pl-3">
+              <label className="text-xs text-muted-foreground">presence_penalty <span className="text-muted-foreground/50">(-2–2)</span></label>
+              <input
+                type="number"
+                min={-2}
+                max={2}
+                step={0.1}
+                value={advancedParamRaw.presencePenalty ?? (form.advancedParams.presencePenalty != null ? String(form.advancedParams.presencePenalty) : "")}
+                onChange={(e) => handleAdvancedParam("presencePenalty", e.target.value)}
+                placeholder={t('ai.providers.advancedParams.default')}
+                className="w-full h-8 rounded-md border border-input bg-background px-3 text-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring"
+              />
+            </div>
+          </div>
+        )}
+      </div>
+
       {/* Actions */}
       <div className="flex items-center gap-2 pt-1">
         <Button variant="default" size="sm" onClick={() => void handleSave()}>

components/settings/tabs/ai/ProviderIconBadge.tsx

@@ -20,7 +20,8 @@ export const ProviderIconBadge: React.FC<{
       aria-hidden="true"
       draggable={false}
       className={cn(
-        "object-contain brightness-0 invert",
+        "object-contain",
+        providerId === "copilot" ? "brightness-0" : "brightness-0 invert",
         size === "sm" ? "w-3 h-3" : "w-4 h-4",
       )}
     />

components/settings/tabs/ai/index.ts

@@ -5,4 +5,5 @@ export { ProviderCard } from "./ProviderCard";
 export { AddProviderDropdown } from "./AddProviderDropdown";
 export { CodexConnectionCard } from "./CodexConnectionCard";
 export { ClaudeCodeCard } from "./ClaudeCodeCard";
+export { CopilotCliCard } from "./CopilotCliCard";
 export { SafetySettings } from "./SafetySettings";

components/settings/tabs/ai/types.ts

@@ -4,6 +4,7 @@
 import type {
   AIProviderId,
   ExternalAgentConfig,
+  ProviderAdvancedParams,
 } from "../../../../infrastructure/ai/types";
 
 export type CodexIntegrationState =
@@ -42,6 +43,7 @@ export interface ProviderFormState {
   baseURL: string;
   defaultModel: string;
   skipTLSVerify: boolean;
+  advancedParams: ProviderAdvancedParams;
 }
 
 export interface FetchedModel {
@@ -77,9 +79,16 @@ export const AGENT_DEFAULTS: Record<string, Omit<ExternalAgentConfig, "id" | "co
     name: "Claude Code",
     args: ["-p", "--output-format", "text", "{prompt}"],
     icon: "claude",
-    acpCommand: "claude-code-acp",
+    acpCommand: "claude-agent-acp",
     acpArgs: [],
   },
+  copilot: {
+    name: "GitHub Copilot CLI",
+    args: ["-p", "{prompt}"],
+    icon: "copilot",
+    acpCommand: "copilot",
+    acpArgs: ["--acp", "--stdio"],
+  },
 };
 
 // ---------------------------------------------------------------------------
@@ -106,12 +115,13 @@ export function normalizeCodexBridgeError(error: unknown): string {
 // Provider icon helper
 // ---------------------------------------------------------------------------
 
-export type SettingsIconId = AIProviderId | "claude";
+export type SettingsIconId = AIProviderId | "claude" | "copilot";
 
 export const SETTINGS_ICON_PATHS: Record<SettingsIconId, string> = {
   openai: "/ai/providers/openai.svg",
   anthropic: "/ai/providers/anthropic.svg",
   claude: "/ai/agents/claude.svg",
+  copilot: "/ai/agents/copilot.svg",
   google: "/ai/providers/google.svg",
   ollama: "/ai/providers/ollama.svg",
   openrouter: "/ai/providers/openrouter.svg",
@@ -122,6 +132,7 @@ export const SETTINGS_ICON_COLORS: Record<SettingsIconId, string> = {
   openai: "bg-emerald-600",
   anthropic: "bg-orange-600",
   claude: "bg-orange-600",
+  copilot: "border border-zinc-300 bg-white",
   google: "bg-blue-600",
   ollama: "bg-purple-600",
   openrouter: "bg-pink-600",

components/sftp-modal/SftpModalDialogs.tsx

@@ -1,186 +0,0 @@
-import React from "react";
-import { Loader2 } from "lucide-react";
-import { Button } from "../ui/button";
-import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "../ui/dialog";
-import { Input } from "../ui/input";
-import type { RemoteFile } from "../../types";
-
-interface PermissionsState {
-  owner: { read: boolean; write: boolean; execute: boolean };
-  group: { read: boolean; write: boolean; execute: boolean };
-  others: { read: boolean; write: boolean; execute: boolean };
-}
-
-interface SftpModalDialogsProps {
-  t: (key: string, params?: Record<string, unknown>) => string;
-  showRenameDialog: boolean;
-  setShowRenameDialog: (open: boolean) => void;
-  renameTarget: RemoteFile | null;
-  renameName: string;
-  setRenameName: (value: string) => void;
-  handleRename: () => void;
-  isRenaming: boolean;
-  showPermissionsDialog: boolean;
-  setShowPermissionsDialog: (open: boolean) => void;
-  permissionsTarget: RemoteFile | null;
-  permissions: PermissionsState;
-  togglePermission: (role: "owner" | "group" | "others", perm: "read" | "write" | "execute") => void;
-  getOctalPermissions: () => string;
-  getSymbolicPermissions: () => string;
-  handleSavePermissions: () => void;
-  isChangingPermissions: boolean;
-  showCreateDialog: boolean;
-  setShowCreateDialog: (open: boolean) => void;
-  createType: "file" | "folder";
-  createName: string;
-  setCreateName: (value: string) => void;
-  isCreating: boolean;
-  handleCreateSubmit: () => void;
-}
-
-export const SftpModalDialogs: React.FC<SftpModalDialogsProps> = ({
-  t,
-  showRenameDialog,
-  setShowRenameDialog,
-  renameTarget,
-  renameName,
-  setRenameName,
-  handleRename,
-  isRenaming,
-  showPermissionsDialog,
-  setShowPermissionsDialog,
-  permissionsTarget,
-  permissions,
-  togglePermission,
-  getOctalPermissions,
-  getSymbolicPermissions,
-  handleSavePermissions,
-  isChangingPermissions,
-  showCreateDialog,
-  setShowCreateDialog,
-  createType,
-  createName,
-  setCreateName,
-  isCreating,
-  handleCreateSubmit,
-}) => (
-  <>
-    <Dialog open={showRenameDialog} onOpenChange={setShowRenameDialog}>
-      <DialogContent className="sm:max-w-[400px]">
-        <DialogHeader>
-          <DialogTitle>{t("sftp.rename.title")}</DialogTitle>
-          <DialogDescription className="truncate">
-            {renameTarget?.name}
-          </DialogDescription>
-        </DialogHeader>
-        <div className="py-4">
-          <Input
-            value={renameName}
-            onChange={(e) => setRenameName(e.target.value)}
-            placeholder={t("sftp.rename.placeholder")}
-            onKeyDown={(e) => {
-              if (e.key === "Enter") handleRename();
-            }}
-            autoFocus
-          />
-        </div>
-        <DialogFooter>
-          <Button variant="outline" onClick={() => setShowRenameDialog(false)}>
-            {t("common.cancel")}
-          </Button>
-          <Button onClick={handleRename} disabled={isRenaming || !renameName.trim()}>
-            {isRenaming ? <Loader2 size={14} className="mr-2 animate-spin" /> : null}
-            {t("common.apply")}
-          </Button>
-        </DialogFooter>
-      </DialogContent>
-    </Dialog>
-
-    <Dialog open={showPermissionsDialog} onOpenChange={setShowPermissionsDialog}>
-      <DialogContent className="sm:max-w-[400px]">
-        <DialogHeader>
-          <DialogTitle>{t("sftp.permissions.title")}</DialogTitle>
-          <DialogDescription className="truncate">
-            {permissionsTarget?.name}
-          </DialogDescription>
-        </DialogHeader>
-        <div className="space-y-4 py-4">
-          <div className="space-y-3">
-            {(["owner", "group", "others"] as const).map((role) => (
-              <div key={role} className="flex items-center gap-4">
-                <div className="w-16 text-sm font-medium">
-                  {t(`sftp.permissions.${role}`)}
-                </div>
-                <div className="flex gap-3">
-                  {(["read", "write", "execute"] as const).map((perm) => (
-                    <label key={perm} className="flex items-center gap-1.5 cursor-pointer">
-                      <input
-                        type="checkbox"
-                        checked={permissions[role][perm]}
-                        onChange={() => togglePermission(role, perm)}
-                        className="rounded border-border"
-                      />
-                      <span className="text-xs">
-                        {perm === "read" ? "R" : perm === "write" ? "W" : "X"}
-                      </span>
-                    </label>
-                  ))}
-                </div>
-              </div>
-            ))}
-          </div>
-          <div className="flex items-center justify-between pt-2 border-t border-border/60">
-            <div className="text-xs text-muted-foreground">
-              {t("sftp.permissions.octal")}: <span className="font-mono text-foreground">{getOctalPermissions()}</span>
-            </div>
-            <div className="text-xs text-muted-foreground">
-              {t("sftp.permissions.symbolic")}: <span className="font-mono text-foreground">{getSymbolicPermissions()}</span>
-            </div>
-          </div>
-        </div>
-        <DialogFooter>
-          <Button variant="outline" onClick={() => setShowPermissionsDialog(false)}>
-            {t("common.cancel")}
-          </Button>
-          <Button onClick={handleSavePermissions} disabled={isChangingPermissions}>
-            {isChangingPermissions ? <Loader2 size={14} className="mr-2 animate-spin" /> : null}
-            {t("common.apply")}
-          </Button>
-        </DialogFooter>
-      </DialogContent>
-    </Dialog>
-
-    <Dialog open={showCreateDialog} onOpenChange={setShowCreateDialog}>
-      <DialogContent className="sm:max-w-[400px]">
-        <DialogHeader>
-          <DialogTitle>
-            {t(createType === "folder" ? "sftp.newFolder" : "sftp.newFile")}
-          </DialogTitle>
-          <DialogDescription>
-            {t(createType === "folder" ? "sftp.prompt.newFolderName" : "sftp.fileName.placeholder")}
-          </DialogDescription>
-        </DialogHeader>
-        <div className="py-4">
-          <Input
-            value={createName}
-            onChange={(e) => setCreateName(e.target.value)}
-            placeholder={t(createType === "folder" ? "sftp.prompt.newFolderName" : "sftp.fileName.placeholder")}
-            onKeyDown={(e) => {
-              if (e.key === "Enter") handleCreateSubmit();
-            }}
-            autoFocus
-          />
-        </div>
-        <DialogFooter>
-          <Button variant="outline" onClick={() => setShowCreateDialog(false)}>
-            {t("common.cancel")}
-          </Button>
-          <Button onClick={handleCreateSubmit} disabled={isCreating || !createName.trim()}>
-            {isCreating ? <Loader2 size={14} className="mr-2 animate-spin" /> : null}
-            {t("common.apply")}
-          </Button>
-        </DialogFooter>
-      </DialogContent>
-    </Dialog>
-  </>
-);

components/sftp-modal/SftpModalFileList.tsx

@@ -1,438 +0,0 @@
-import React from "react";
-import { Download, Edit2, Folder, FolderOpen, FolderUp, Link, Loader2, MoreHorizontal, Plus, RefreshCw, Shield, Trash2, Upload } from "lucide-react";
-import { cn } from "../../lib/utils";
-import type { RemoteFile } from "../../types";
-import { isKnownBinaryFile } from "../../lib/sftpFileUtils";
-import { ContextMenu, ContextMenuContent, ContextMenuItem, ContextMenuSeparator, ContextMenuTrigger } from "../ui/context-menu";
-import { Button } from "../ui/button";
-import { getFileIcon } from "./fileIcons";
-
-interface VisibleRow {
-  file: RemoteFile;
-  index: number;
-  top: number;
-}
-
-interface SftpModalFileListProps {
-  t: (key: string, params?: Record<string, unknown>) => string;
-  currentPath: string;
-  isLocalSession: boolean;
-  hasFiles: boolean;
-  hasDisplayFiles: boolean;
-  selectedFiles: Set<string>;
-  dragActive: boolean;
-  loading: boolean;
-  loadingTextContent: boolean;
-  reconnecting: boolean;
-  columnWidths: { name: number; size: number; modified: number; actions: number };
-  sortField: "name" | "size" | "modified";
-  sortOrder: "asc" | "desc";
-  shouldVirtualize: boolean;
-  totalHeight: number;
-  visibleRows: VisibleRow[];
-  fileListRef: React.RefObject<HTMLDivElement>;
-  inputRef: React.RefObject<HTMLInputElement>;
-  folderInputRef: React.RefObject<HTMLInputElement>;
-  handleSort: (field: "name" | "size" | "modified") => void;
-  handleResizeStart: (field: string, e: React.MouseEvent) => void;
-  handleFileListScroll: (e: React.UIEvent<HTMLDivElement>) => void;
-  handleDrag: (e: React.DragEvent) => void;
-  handleDrop: (e: React.DragEvent) => void;
-  handleFileClick: (file: RemoteFile, index: number, e: React.MouseEvent) => void;
-  handleFileDoubleClick: (file: RemoteFile) => void;
-  handleDownload: (file: RemoteFile) => void;
-  handleDelete: (file: RemoteFile) => void;
-  handleOpenFile: (file: RemoteFile) => void;
-  openFileOpenerDialog: (file: RemoteFile) => void;
-  handleEditFile: (file: RemoteFile) => void;
-  openRenameDialog: (file: RemoteFile) => void;
-  openPermissionsDialog: (file: RemoteFile) => void;
-  handleNavigate: (path: string) => void;
-  handleCreateFolder: () => void;
-  handleCreateFile: () => void;
-  handleDownloadSelected: () => void;
-  handleDeleteSelected: () => void;
-  loadFiles: (path: string, options?: { force?: boolean }) => void;
-  formatBytes: (bytes: number | string) => string;
-  formatDate: (dateStr: string | number | undefined) => string;
-}
-
-export const SftpModalFileList: React.FC<SftpModalFileListProps> = ({
-  t,
-  currentPath,
-  isLocalSession,
-  hasFiles,
-  hasDisplayFiles,
-  selectedFiles,
-  dragActive,
-  loading,
-  loadingTextContent,
-  reconnecting,
-  columnWidths,
-  sortField,
-  sortOrder,
-  shouldVirtualize,
-  totalHeight,
-  visibleRows,
-  fileListRef,
-  inputRef,
-  folderInputRef,
-  handleSort,
-  handleResizeStart,
-  handleFileListScroll,
-  handleDrag,
-  handleDrop,
-  handleFileClick,
-  handleFileDoubleClick,
-  handleDownload,
-  handleDelete,
-  handleOpenFile,
-  openFileOpenerDialog,
-  handleEditFile,
-  openRenameDialog,
-  openPermissionsDialog,
-  handleNavigate,
-  handleCreateFolder,
-  handleCreateFile,
-  handleDownloadSelected,
-  handleDeleteSelected,
-  loadFiles,
-  formatBytes,
-  formatDate,
-}) => (
-  <>
-    <div
-      className="shrink-0 bg-muted/80 backdrop-blur-sm border-b border-border/60 px-4 py-2 flex items-center text-xs font-medium text-muted-foreground select-none"
-      style={{
-        display: "grid",
-        gridTemplateColumns: `${columnWidths.name}% ${columnWidths.size}% ${columnWidths.modified}% ${columnWidths.actions}%`,
-      }}
-    >
-      <div
-        className="flex items-center gap-1 cursor-pointer hover:text-foreground relative pr-2"
-        onClick={() => handleSort("name")}
-      >
-        <span>{t("sftp.columns.name")}</span>
-        {sortField === "name" && (
-          <span className="text-primary">{sortOrder === "asc" ? "^" : "v"}</span>
-        )}
-        <div
-          className="absolute right-0 top-0 bottom-0 w-1 cursor-col-resize hover:bg-primary/50 transition-colors"
-          onMouseDown={(e) => handleResizeStart("name", e)}
-        />
-      </div>
-      <div
-        className="flex items-center gap-1 cursor-pointer hover:text-foreground relative pr-2"
-        onClick={() => handleSort("size")}
-      >
-        <span>{t("sftp.columns.size")}</span>
-        {sortField === "size" && (
-          <span className="text-primary">{sortOrder === "asc" ? "^" : "v"}</span>
-        )}
-        <div
-          className="absolute right-0 top-0 bottom-0 w-1 cursor-col-resize hover:bg-primary/50 transition-colors"
-          onMouseDown={(e) => handleResizeStart("size", e)}
-        />
-      </div>
-      <div
-        className="flex items-center gap-1 cursor-pointer hover:text-foreground relative pr-2"
-        onClick={() => handleSort("modified")}
-      >
-        <span>{t("sftp.columns.modified")}</span>
-        {sortField === "modified" && (
-          <span className="text-primary">{sortOrder === "asc" ? "^" : "v"}</span>
-        )}
-        <div
-          className="absolute right-0 top-0 bottom-0 w-1 cursor-col-resize hover:bg-primary/50 transition-colors"
-          onMouseDown={(e) => handleResizeStart("modified", e)}
-        />
-      </div>
-      <div className="text-right">{t("sftp.columns.actions")}</div>
-    </div>
-
-    <div
-      ref={fileListRef}
-      className={cn(
-        "flex-1 min-h-0 overflow-y-auto relative",
-        dragActive && "bg-primary/5 ring-2 ring-inset ring-primary",
-      )}
-      onScroll={handleFileListScroll}
-      onDragEnter={handleDrag}
-      onDragLeave={handleDrag}
-      onDragOver={handleDrag}
-      onDrop={handleDrop}
-    >
-      {dragActive && (
-        <div className="absolute inset-0 flex items-center justify-center pointer-events-none z-10">
-          <div className="bg-background/95 p-6 rounded-xl shadow-lg border-2 border-dashed border-primary text-primary font-medium flex flex-col items-center gap-2">
-            <Upload size={32} />
-            <span>{t("sftp.dropFilesHere")}</span>
-          </div>
-        </div>
-      )}
-
-      {loading && !hasFiles && (
-        <div className="absolute inset-0 flex items-center justify-center bg-background/80">
-          <Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
-        </div>
-      )}
-
-      {loadingTextContent && (
-        <div className="absolute inset-0 flex items-center justify-center bg-background/80 z-20">
-          <div className="flex flex-col items-center gap-2">
-            <Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
-            <span className="text-sm text-muted-foreground">
-              {t("sftp.status.loading")}
-            </span>
-          </div>
-        </div>
-      )}
-
-      {reconnecting && (
-        <div className="absolute inset-0 flex items-center justify-center bg-background/80 backdrop-blur-sm z-20">
-          <div className="flex flex-col items-center gap-3 p-6 rounded-xl bg-secondary/90 border border-border/60 shadow-lg">
-            <Loader2 className="h-8 w-8 animate-spin text-primary" />
-            <div className="text-center">
-              <div className="text-sm font-medium">{t("sftp.reconnecting.title")}</div>
-              <div className="text-xs text-muted-foreground mt-1">
-                {t("sftp.reconnecting.desc")}
-              </div>
-            </div>
-          </div>
-        </div>
-      )}
-
-      {!hasDisplayFiles && !loading && (
-        <div className="flex flex-col items-center justify-center h-full text-muted-foreground">
-          <Folder size={48} className="mb-3 opacity-50" />
-          <div className="text-sm font-medium">{t("sftp.emptyDirectory")}</div>
-          <div className="text-xs mt-1">{t("sftp.dragDropToUpload")}</div>
-        </div>
-      )}
-
-      <ContextMenu>
-        <ContextMenuTrigger asChild>
-          <div
-            className={shouldVirtualize ? "relative" : "divide-y divide-border/30"}
-            style={shouldVirtualize ? { height: totalHeight } : undefined}
-          >
-            {visibleRows.map(({ file, index: idx, top }) => {
-              const isNavigableDirectory =
-                file.type === "directory" ||
-                (file.type === "symlink" && file.linkTarget === "directory");
-              const isDownloadableFile =
-                file.type === "file" ||
-                (file.type === "symlink" && file.linkTarget === "file");
-              const isParentEntry = file.name === "..";
-
-              return (
-                <ContextMenu key={file.name}>
-                  <ContextMenuTrigger>
-                    <div
-                      data-sftp-modal-row="true"
-                      className={cn(
-                        "px-4 py-2.5 items-center hover:bg-muted/50 cursor-pointer transition-colors text-sm",
-                        selectedFiles.has(file.name) && !isParentEntry && "bg-primary/10",
-                        shouldVirtualize ? "absolute left-0 right-0 border-b border-border/30" : "",
-                      )}
-                      style={
-                        shouldVirtualize
-                          ? {
-                            top,
-                            display: "grid",
-                            gridTemplateColumns: `${columnWidths.name}% ${columnWidths.size}% ${columnWidths.modified}% ${columnWidths.actions}%`,
-                          }
-                          : {
-                            display: "grid",
-                            gridTemplateColumns: `${columnWidths.name}% ${columnWidths.size}% ${columnWidths.modified}% ${columnWidths.actions}%`,
-                          }
-                      }
-                      onClick={(e) => handleFileClick(file, idx, e)}
-                      onDoubleClick={() => handleFileDoubleClick(file)}
-                    >
-                      <div className="flex items-center gap-3 min-w-0">
-                        <div className="relative shrink-0 h-7 w-7 flex items-center justify-center">
-                          {getFileIcon(
-                            file.name,
-                            isNavigableDirectory,
-                            file.type === "symlink" && !isNavigableDirectory,
-                          )}
-                          {file.type === "symlink" && (
-                            <Link
-                              size={10}
-                              className="absolute -bottom-0.5 -right-0.5 text-muted-foreground"
-                              aria-hidden="true"
-                            />
-                          )}
-                        </div>
-                        <span
-                          className={cn(
-                            "truncate font-medium",
-                            file.type === "symlink" && "italic pr-1",
-                          )}
-                        >
-                          {file.name}
-                          {file.type === "symlink" && (
-                            <span className="sr-only"> (symbolic link)</span>
-                          )}
-                        </span>
-                      </div>
-                      <div className="text-xs text-muted-foreground">
-                        {isNavigableDirectory ? "--" : formatBytes(file.size)}
-                      </div>
-                      <div className="text-xs text-muted-foreground truncate">
-                        {formatDate(file.lastModified)}
-                      </div>
-                      <div className="flex items-center justify-end gap-1">
-                        {isDownloadableFile && (
-                          <Button
-                            variant="ghost"
-                            size="icon"
-                            className="h-7 w-7"
-                            onClick={(e) => {
-                              e.stopPropagation();
-                              handleDownload(file);
-                            }}
-                            title={t("sftp.context.download")}
-                          >
-                            <Download size={14} />
-                          </Button>
-                        )}
-                        {!isParentEntry && (
-                          <Button
-                            variant="ghost"
-                            size="icon"
-                            className="h-7 w-7 hover:text-destructive"
-                            onClick={(e) => {
-                              e.stopPropagation();
-                              handleDelete(file);
-                            }}
-                            title={t("sftp.context.delete")}
-                          >
-                            <Trash2 size={14} />
-                          </Button>
-                        )}
-                      </div>
-                    </div>
-                  </ContextMenuTrigger>
-                  <ContextMenuContent>
-                    {isParentEntry ? (
-                      <ContextMenuItem
-                        onClick={() => {
-                          const segments = currentPath.split("/").filter(Boolean);
-                          segments.pop();
-                          const parentPath =
-                            segments.length === 0 ? "/" : `/${segments.join("/")}`;
-                          handleNavigate(parentPath);
-                        }}
-                      >
-                        {t("sftp.context.open")}
-                      </ContextMenuItem>
-                    ) : (
-                      <>
-                        {isNavigableDirectory && (
-                          <>
-                            <ContextMenuItem
-                              onClick={() =>
-                                handleNavigate(
-                                  currentPath === "/"
-                                    ? `/${file.name}`
-                                    : `${currentPath}/${file.name}`,
-                                )
-                              }
-                            >
-                              <FolderOpen size={14} className="mr-2" />
-                              {t("sftp.context.open")}
-                            </ContextMenuItem>
-                            {!isLocalSession && (
-                              <ContextMenuItem onClick={() => handleDownload(file)}>
-                                <Download size={14} className="mr-2" />
-                                {t("sftp.context.download")}
-                              </ContextMenuItem>
-                            )}
-                          </>
-                        )}
-                        {isDownloadableFile && (
-                          <>
-                            <ContextMenuItem onClick={() => handleOpenFile(file)}>
-                              <FolderOpen size={14} className="mr-2" />
-                              {t("sftp.context.open")}
-                            </ContextMenuItem>
-                            <ContextMenuItem onClick={() => openFileOpenerDialog(file)}>
-                              <MoreHorizontal size={14} className="mr-2" />
-                              {t("sftp.context.openWith")}
-                            </ContextMenuItem>
-                            {!isKnownBinaryFile(file.name) && (
-                              <ContextMenuItem onClick={() => handleEditFile(file)}>
-                                <Edit2 size={14} className="mr-2" />
-                                {t("sftp.context.edit")}
-                              </ContextMenuItem>
-                            )}
-                            <ContextMenuSeparator />
-                            <ContextMenuItem onClick={() => handleDownload(file)}>
-                              <Download size={14} className="mr-2" />
-                              {t("sftp.context.download")}
-                            </ContextMenuItem>
-                          </>
-                        )}
-                        <ContextMenuItem onClick={() => openRenameDialog(file)}>
-                          <Edit2 size={14} className="mr-2" />
-                          {t("sftp.context.rename")}
-                        </ContextMenuItem>
-                        {!isLocalSession && (
-                          <ContextMenuItem onClick={() => openPermissionsDialog(file)}>
-                            <Shield size={14} className="mr-2" />
-                            {t("sftp.context.permissions")}
-                          </ContextMenuItem>
-                        )}
-                        <ContextMenuItem
-                          className="text-destructive"
-                          onClick={() => handleDelete(file)}
-                        >
-                          <Trash2 size={14} className="mr-2" />
-                          {t("sftp.context.delete")}
-                        </ContextMenuItem>
-                      </>
-                    )}
-                  </ContextMenuContent>
-                </ContextMenu>
-              );
-            })}
-          </div>
-        </ContextMenuTrigger>
-        <ContextMenuContent>
-          <ContextMenuItem onClick={handleCreateFolder}>
-            <Plus className="h-4 w-4 mr-2" /> {t("sftp.newFolder")}
-          </ContextMenuItem>
-          <ContextMenuItem onClick={handleCreateFile}>
-            <Plus className="h-4 w-4 mr-2" /> {t("sftp.newFile")}
-          </ContextMenuItem>
-          <ContextMenuItem onClick={() => inputRef.current?.click()}>
-            <Upload className="h-4 w-4 mr-2" /> {t("sftp.uploadFiles")}
-          </ContextMenuItem>
-          <ContextMenuItem onClick={() => folderInputRef.current?.click()}>
-            <FolderUp className="h-4 w-4 mr-2" /> {t("sftp.uploadFolder")}
-          </ContextMenuItem>
-          <ContextMenuItem onClick={() => loadFiles(currentPath, { force: true })}>
-            <RefreshCw className="h-4 w-4 mr-2" /> {t("sftp.context.refresh")}
-          </ContextMenuItem>
-          {selectedFiles.size > 0 && (
-            <>
-              <ContextMenuItem onClick={handleDownloadSelected}>
-                <Download className="h-4 w-4 mr-2" />
-                {t("sftp.context.downloadSelected", { count: selectedFiles.size })}
-              </ContextMenuItem>
-              <ContextMenuItem
-                className="text-destructive"
-                onClick={handleDeleteSelected}
-              >
-                <Trash2 className="h-4 w-4 mr-2" />
-                {t("sftp.context.deleteSelected", { count: selectedFiles.size })}
-              </ContextMenuItem>
-            </>
-          )}
-        </ContextMenuContent>
-      </ContextMenu>
-    </div>
-  </>
-);

components/sftp-modal/SftpModalFooter.tsx

@@ -1,61 +0,0 @@
-import React from "react";
-import { Download, Trash2 } from "lucide-react";
-import { Button } from "../ui/button";
-import type { RemoteFile } from "../../types";
-
-interface SftpModalFooterProps {
-  t: (key: string, params?: Record<string, unknown>) => string;
-  files: RemoteFile[];
-  selectedFiles: Set<string>;
-  loading: boolean;
-  uploading: boolean;
-  onDownloadSelected: () => void;
-  onDeleteSelected: () => void;
-}
-
-export const SftpModalFooter: React.FC<SftpModalFooterProps> = ({
-  t,
-  files,
-  selectedFiles,
-  loading,
-  uploading,
-  onDownloadSelected,
-  onDeleteSelected,
-}) => (
-  <div className="px-4 py-2 border-t border-border/60 flex items-center justify-between text-xs text-muted-foreground bg-muted/30 flex-shrink-0">
-    <span>
-      {t("sftp.itemsCount", { count: files.length })}
-      {selectedFiles.size > 0 && (
-        <>
-          <span className="mx-2">|</span>
-          <span className="text-primary">
-            {t("sftp.selectedCount", { count: selectedFiles.size })}
-          </span>
-          <Button
-            variant="ghost"
-            size="sm"
-            className="h-5 px-2 ml-2 text-xs text-primary hover:text-primary"
-            onClick={onDownloadSelected}
-          >
-            <Download size={10} className="mr-1" /> {t("sftp.context.download")}
-          </Button>
-          <Button
-            variant="ghost"
-            size="sm"
-            className="h-5 px-2 text-xs text-destructive hover:text-destructive"
-            onClick={onDeleteSelected}
-          >
-            <Trash2 size={10} className="mr-1" /> {t("sftp.context.delete")}
-          </Button>
-        </>
-      )}
-    </span>
-    <span>
-      {loading
-        ? t("sftp.status.loading")
-        : uploading
-          ? t("sftp.status.uploading")
-          : t("sftp.status.ready")}
-    </span>
-  </div>
-);

components/sftp-modal/SftpModalHeader.tsx

@@ -1,480 +0,0 @@
-import React, { useEffect, useState } from "react";
-import { ArrowUp, Bookmark, Check, ChevronRight, Eye, EyeOff, FilePlus, FolderPlus, FolderUp, Home, Languages, MoreHorizontal, RefreshCw, Trash2, Upload, X } from "lucide-react";
-import { cn } from "../../lib/utils";
-import type { Host, SftpFilenameEncoding } from "../../types";
-import { useSftpBookmarks } from "../sftp/hooks/useSftpBookmarks";
-import { DistroAvatar } from "../DistroAvatar";
-import { Button } from "../ui/button";
-import { Input } from "../ui/input";
-import { Popover, PopoverClose, PopoverContent, PopoverTrigger } from "../ui/popover";
-import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "../ui/tooltip";
-
-interface BreadcrumbPart {
-  part: string;
-  originalIndex: number;
-}
-
-interface SftpModalHeaderProps {
-  t: (key: string, params?: Record<string, unknown>) => string;
-  host: Host;
-  credentials: { username?: string; hostname: string; port?: number };
-  showEncoding: boolean;
-  filenameEncoding: SftpFilenameEncoding;
-  onFilenameEncodingChange: (encoding: SftpFilenameEncoding) => void;
-  currentPath: string;
-  isEditingPath: boolean;
-  editingPathValue: string;
-  setEditingPathValue: (value: string) => void;
-  handlePathSubmit: () => void;
-  handlePathKeyDown: (e: React.KeyboardEvent) => void;
-  handlePathDoubleClick: () => void;
-  isAtRoot: boolean;
-  rootLabel: string;
-  isRefreshing: boolean;
-  onUp: () => void;
-  onHome: () => void;
-  onRefresh: () => void;
-  visibleBreadcrumbs: BreadcrumbPart[];
-  hiddenBreadcrumbs: BreadcrumbPart[];
-  needsBreadcrumbTruncation: boolean;
-  breadcrumbs: string[];
-  onBreadcrumbSelect: (index: number) => void;
-  onRootSelect: () => void;
-  inputRef: React.RefObject<HTMLInputElement>;
-  folderInputRef: React.RefObject<HTMLInputElement>;
-  pathInputRef: React.RefObject<HTMLInputElement>;
-  uploading: boolean;
-  onTriggerUpload: () => void;
-  onTriggerFolderUpload: () => void;
-  onCreateFolder: () => void;
-  onCreateFile: () => void;
-  onFileSelect: (e: React.ChangeEvent<HTMLInputElement>) => void;
-  onFolderSelect: (e: React.ChangeEvent<HTMLInputElement>) => void;
-  showHiddenFiles: boolean;
-  onToggleShowHiddenFiles: () => void;
-  onUpdateHost?: (host: Host) => void;
-  onNavigateToBookmark?: (path: string) => void;
-  onClose?: () => void;
-}
-
-export const SftpModalHeader: React.FC<SftpModalHeaderProps> = ({
-  t,
-  host,
-  credentials,
-  showEncoding,
-  filenameEncoding,
-  onFilenameEncodingChange,
-  currentPath,
-  isEditingPath,
-  editingPathValue,
-  setEditingPathValue,
-  handlePathSubmit,
-  handlePathKeyDown,
-  handlePathDoubleClick,
-  isAtRoot,
-  rootLabel,
-  isRefreshing,
-  onUp,
-  onHome,
-  onRefresh,
-  visibleBreadcrumbs,
-  hiddenBreadcrumbs,
-  needsBreadcrumbTruncation,
-  breadcrumbs,
-  onBreadcrumbSelect,
-  onRootSelect,
-  inputRef,
-  folderInputRef,
-  pathInputRef,
-  uploading,
-  onTriggerUpload,
-  onTriggerFolderUpload,
-  onCreateFolder,
-  onCreateFile,
-  onFileSelect,
-  onFolderSelect,
-  showHiddenFiles,
-  onToggleShowHiddenFiles,
-  onUpdateHost,
-  onNavigateToBookmark,
-  onClose,
-}) => {
-  // Delay tooltip activation to prevent flickering when modal opens
-  const [tooltipsReady, setTooltipsReady] = useState(false);
-  const [openTooltip, setOpenTooltip] = useState<string | null>(null);
-
-  // Bookmarks
-  const {
-    bookmarks,
-    isCurrentPathBookmarked,
-    toggleBookmark,
-    deleteBookmark,
-  } = useSftpBookmarks({
-    host,
-    currentPath,
-    onUpdateHost,
-  });
-
-  useEffect(() => {
-    const timer = setTimeout(() => setTooltipsReady(true), 500);
-    return () => clearTimeout(timer);
-  }, []);
-
-  const handleTooltipOpenChange = (id: string) => (open: boolean) => {
-    if (!tooltipsReady) return;
-    setOpenTooltip(open ? id : null);
-  };
-
-  return (
-    <>
-      <div className="px-4 py-3 border-b border-border/60 flex-shrink-0">
-        <div className="flex items-center gap-3">
-          <DistroAvatar
-            host={host}
-            fallback={host.label.slice(0, 2).toUpperCase()}
-            className="h-8 w-8"
-            size="sm"
-          />
-          <div className="flex-1 min-w-0">
-            <div className="text-sm font-semibold">
-              {host.label}
-            </div>
-            <div className="text-xs text-muted-foreground font-mono">
-              {credentials.username || "root"}@{credentials.hostname}:
-              {credentials.port || 22}
-            </div>
-          </div>
-          {onClose && (
-            <Button
-              variant="ghost"
-              size="icon"
-              className="h-6 w-6 shrink-0"
-              onClick={onClose}
-            >
-              <X size={14} />
-            </Button>
-          )}
-        </div>
-      </div>
-
-      <TooltipProvider delayDuration={500} skipDelayDuration={800} disableHoverableContent>
-        <div className="px-4 py-2 border-b border-border/60 flex items-center gap-2 flex-shrink-0 bg-muted/30">
-          <Tooltip open={openTooltip === 'up'} onOpenChange={handleTooltipOpenChange('up')}>
-            <TooltipTrigger asChild>
-              <Button
-                variant="ghost"
-                size="icon"
-                className="h-7 w-7"
-                onClick={onUp}
-                disabled={isAtRoot}
-              >
-                <ArrowUp size={14} />
-              </Button>
-            </TooltipTrigger>
-            <TooltipContent>{t("sftp.nav.up")}</TooltipContent>
-          </Tooltip>
-          <Tooltip open={openTooltip === 'home'} onOpenChange={handleTooltipOpenChange('home')}>
-            <TooltipTrigger asChild>
-              <Button
-                variant="ghost"
-                size="icon"
-                className="h-7 w-7"
-                onClick={onHome}
-              >
-                <Home size={14} />
-              </Button>
-            </TooltipTrigger>
-            <TooltipContent>{t("sftp.nav.home")}</TooltipContent>
-          </Tooltip>
-          <Tooltip open={openTooltip === 'refresh'} onOpenChange={handleTooltipOpenChange('refresh')}>
-            <TooltipTrigger asChild>
-              <Button
-                variant="ghost"
-                size="icon"
-                className="h-7 w-7"
-                onClick={onRefresh}
-              >
-                <RefreshCw
-                  size={14}
-                  className={cn(isRefreshing && "animate-spin")}
-                />
-              </Button>
-            </TooltipTrigger>
-            <TooltipContent>{t("sftp.nav.refresh")}</TooltipContent>
-          </Tooltip>
-          {/* Bookmark button */}
-          {onUpdateHost && (
-            <Popover>
-              <Tooltip open={openTooltip === 'bookmark'} onOpenChange={handleTooltipOpenChange('bookmark')}>
-                <TooltipTrigger asChild>
-                  <PopoverTrigger asChild>
-                    <Button
-                      variant="ghost"
-                      size="icon"
-                      className="h-7 w-7"
-                    >
-                      <Bookmark
-                        size={14}
-                        className={cn(
-                          isCurrentPathBookmarked && "fill-yellow-500 text-yellow-500"
-                        )}
-                      />
-                    </Button>
-                  </PopoverTrigger>
-                </TooltipTrigger>
-                <TooltipContent>
-                  {isCurrentPathBookmarked ? t("sftp.bookmark.remove") : t("sftp.bookmark.add")}
-                </TooltipContent>
-              </Tooltip>
-              <PopoverContent className="w-56 p-1" align="start">
-                {/* Toggle button */}
-                <button
-                  className="w-full flex items-center gap-2 px-2 py-1.5 text-xs rounded-sm hover:bg-secondary transition-colors"
-                  onClick={toggleBookmark}
-                >
-                  <Bookmark
-                    size={12}
-                    className={cn(
-                      "shrink-0",
-                      isCurrentPathBookmarked && "fill-yellow-500 text-yellow-500"
-                    )}
-                  />
-                  {isCurrentPathBookmarked ? t("sftp.bookmark.remove") : t("sftp.bookmark.add")}
-                </button>
-                {/* Divider + list */}
-                {bookmarks.length > 0 && (
-                  <>
-                    <div className="my-1 border-t border-border/60" />
-                    {bookmarks.map((bm) => (
-                      <div
-                        key={bm.id}
-                        className="group flex items-center gap-1 px-2 py-1.5 text-xs rounded-sm hover:bg-secondary transition-colors cursor-pointer"
-                        onClick={() => onNavigateToBookmark?.(bm.path)}
-                        title={bm.path}
-                      >
-                        <Bookmark size={10} className="shrink-0 text-muted-foreground" />
-                        <span className="flex-1 truncate">{bm.label}</span>
-                        <span className="flex-1 truncate text-muted-foreground text-[10px]">{bm.path}</span>
-                        <Button
-                          variant="ghost"
-                          size="icon"
-                          className="h-4 w-4 opacity-0 group-hover:opacity-100 transition-opacity shrink-0"
-                          onClick={(e) => {
-                            e.stopPropagation();
-                            deleteBookmark(bm.id);
-                          }}
-                        >
-                          <Trash2 size={10} />
-                        </Button>
-                      </div>
-                    ))}
-                  </>
-                )}
-                {bookmarks.length === 0 && (
-                  <div className="p-2 text-xs text-muted-foreground text-center">
-                    {t("sftp.bookmark.empty")}
-                  </div>
-                )}
-              </PopoverContent>
-            </Popover>
-          )}
-          {showEncoding && (
-            <Popover>
-              <Tooltip open={openTooltip === 'encoding'} onOpenChange={handleTooltipOpenChange('encoding')}>
-                <TooltipTrigger asChild>
-                  <PopoverTrigger asChild>
-                    <Button
-                      variant="ghost"
-                      size="icon"
-                      className="h-7 w-7"
-                    >
-                      <Languages size={14} />
-                    </Button>
-                  </PopoverTrigger>
-                </TooltipTrigger>
-                <TooltipContent>{t("sftp.encoding.label")}</TooltipContent>
-              </Tooltip>
-              <PopoverContent className="w-36 p-1" align="start">
-                {(["auto", "utf-8", "gb18030"] as const).map((encoding) => (
-                  <PopoverClose asChild key={encoding}>
-                    <button
-                      className={cn(
-                        "w-full flex items-center gap-2 px-2 py-1.5 text-sm rounded-sm hover:bg-secondary transition-colors",
-                        filenameEncoding === encoding && "bg-secondary"
-                      )}
-                      onClick={() => onFilenameEncodingChange(encoding)}
-                    >
-                      <Check
-                        size={14}
-                        className={cn(
-                          "shrink-0",
-                          filenameEncoding === encoding ? "opacity-100" : "opacity-0"
-                        )}
-                      />
-                      {t(`sftp.encoding.${encoding === "utf-8" ? "utf8" : encoding}`)}
-                    </button>
-                  </PopoverClose>
-                ))}
-              </PopoverContent>
-            </Popover>
-          )}
-          <Tooltip
-            open={openTooltip === 'showHiddenFiles'}
-            onOpenChange={handleTooltipOpenChange('showHiddenFiles')}
-          >
-            <TooltipTrigger asChild>
-              <Button
-                variant={showHiddenFiles ? "secondary" : "ghost"}
-                size="icon"
-                className={cn("h-7 w-7", showHiddenFiles && "text-primary")}
-                onClick={onToggleShowHiddenFiles}
-              >
-                {showHiddenFiles ? <EyeOff size={14} /> : <Eye size={14} />}
-              </Button>
-            </TooltipTrigger>
-            <TooltipContent>{t("settings.sftp.showHiddenFiles")}</TooltipContent>
-          </Tooltip>
-
-          <div className="flex items-center gap-1 text-sm flex-1 min-w-0 overflow-hidden">
-            {isEditingPath ? (
-              <Input
-                ref={pathInputRef}
-                value={editingPathValue}
-                onChange={(e) => setEditingPathValue(e.target.value)}
-                onBlur={handlePathSubmit}
-                onKeyDown={handlePathKeyDown}
-                className="h-7 text-sm bg-background"
-                autoFocus
-              />
-            ) : (
-              <div
-                className="flex items-center gap-1 flex-1 min-w-0 cursor-text hover:bg-secondary/50 rounded px-1 py-0.5 transition-colors"
-                onDoubleClick={handlePathDoubleClick}
-                title={currentPath}
-              >
-                <button
-                  className="text-muted-foreground hover:text-foreground px-1 shrink-0"
-                  onClick={onRootSelect}
-                >
-                  {rootLabel}
-                </button>
-                {visibleBreadcrumbs.map(({ part, originalIndex }, displayIdx) => {
-                  const isLast = originalIndex === breadcrumbs.length - 1;
-                  const showEllipsisBefore =
-                    needsBreadcrumbTruncation && displayIdx === 1;
-
-                  return (
-                    <React.Fragment key={originalIndex}>
-                      {showEllipsisBefore && (
-                        <>
-                          <ChevronRight
-                            size={12}
-                            className="text-muted-foreground flex-shrink-0"
-                          />
-                          <span
-                            className="text-muted-foreground px-1 shrink-0 flex items-center cursor-default"
-                            title={`${t("sftp.showHiddenPaths")}: ${hiddenBreadcrumbs
-                              .map((h) => h.part)
-                              .join(" > ")}`}
-                          >
-                            <MoreHorizontal size={14} />
-                          </span>
-                        </>
-                      )}
-                      <ChevronRight
-                        size={12}
-                        className="text-muted-foreground flex-shrink-0"
-                      />
-                      <button
-                        className={cn(
-                          "text-muted-foreground hover:text-foreground truncate px-1 max-w-[100px]",
-                          isLast && "text-foreground font-medium",
-                        )}
-                        onClick={() => onBreadcrumbSelect(originalIndex)}
-                        title={part}
-                      >
-                        {part}
-                      </button>
-                    </React.Fragment>
-                  );
-                })}
-              </div>
-            )}
-          </div>
-
-          <div className="flex items-center gap-1 ml-auto">
-            <Tooltip open={openTooltip === 'upload'} onOpenChange={handleTooltipOpenChange('upload')}>
-              <TooltipTrigger asChild>
-                <Button
-                  variant="outline"
-                  size="icon"
-                  className="h-7 w-7"
-                  onClick={onTriggerUpload}
-                  disabled={uploading}
-                >
-                  <Upload size={14} />
-                </Button>
-              </TooltipTrigger>
-              <TooltipContent>{t("sftp.upload")}</TooltipContent>
-            </Tooltip>
-            <Tooltip open={openTooltip === 'uploadFolder'} onOpenChange={handleTooltipOpenChange('uploadFolder')}>
-              <TooltipTrigger asChild>
-                <Button
-                  variant="outline"
-                  size="icon"
-                  className="h-7 w-7"
-                  onClick={onTriggerFolderUpload}
-                  disabled={uploading}
-                >
-                  <FolderUp size={14} />
-                </Button>
-              </TooltipTrigger>
-              <TooltipContent>{t("sftp.uploadFolder")}</TooltipContent>
-            </Tooltip>
-            <Tooltip open={openTooltip === 'newFolder'} onOpenChange={handleTooltipOpenChange('newFolder')}>
-              <TooltipTrigger asChild>
-                <Button
-                  variant="outline"
-                  size="icon"
-                  className="h-7 w-7"
-                  onClick={onCreateFolder}
-                >
-                  <FolderPlus size={14} />
-                </Button>
-              </TooltipTrigger>
-              <TooltipContent>{t("sftp.newFolder")}</TooltipContent>
-            </Tooltip>
-            <Tooltip open={openTooltip === 'newFile'} onOpenChange={handleTooltipOpenChange('newFile')}>
-              <TooltipTrigger asChild>
-                <Button
-                  variant="outline"
-                  size="icon"
-                  className="h-7 w-7"
-                  onClick={onCreateFile}
-                >
-                  <FilePlus size={14} />
-                </Button>
-              </TooltipTrigger>
-              <TooltipContent>{t("sftp.newFile")}</TooltipContent>
-            </Tooltip>
-            <input
-              type="file"
-              className="hidden"
-              ref={inputRef}
-              onChange={onFileSelect}
-              multiple
-            />
-            <input
-              type="file"
-              className="hidden"
-              ref={folderInputRef}
-              onChange={onFolderSelect}
-              webkitdirectory=""
-              multiple
-            />
-          </div>
-        </div>
-      </TooltipProvider>
-    </>
-  );
-};

components/sftp-modal/SftpModalUploadTasks.tsx

@@ -1,228 +0,0 @@
-import React from "react";
-import { Download, Loader2, Upload, X, XCircle } from "lucide-react";
-import { cn } from "../../lib/utils";
-import { Button } from "../ui/button";
-
-interface TransferTask {
-  id: string;
-  fileName: string;
-  totalBytes: number;
-  transferredBytes: number;
-  progress: number;
-  speed: number;
-  status: "pending" | "uploading" | "downloading" | "completed" | "failed" | "cancelled";
-  error?: string;
-  direction: "upload" | "download";
-  targetPath?: string;
-}
-
-interface SftpModalUploadTasksProps {
-  tasks: TransferTask[];
-  t: (key: string, params?: Record<string, unknown>) => string;
-  onCancel?: () => void;
-  onCancelTask?: (taskId: string) => void;
-  onDismiss?: (taskId: string) => void;
-}
-
-export const SftpModalUploadTasks: React.FC<SftpModalUploadTasksProps> = ({ tasks, t, onCancel, onCancelTask, onDismiss }) => {
-  if (tasks.length === 0) return null;
-
-  // Helper function to get localized display name for compressed uploads
-  const getDisplayName = (task: TransferTask) => {
-    // Check for explicit phase marker format: "folderName|phase"
-    // This is the format sent by uploadService.ts for compressed uploads
-    if (task.fileName.includes('|')) {
-      const pipeIndex = task.fileName.lastIndexOf('|');
-      const baseName = task.fileName.substring(0, pipeIndex);
-      const phase = task.fileName.substring(pipeIndex + 1);
-
-      if (phase === 'compressing' || phase === 'extracting' || phase === 'uploading' || phase === 'compressed') {
-        const phaseLabel = t(`sftp.upload.phase.${phase}`);
-        return `${baseName} (${phaseLabel})`;
-      }
-    }
-
-    // Check for exact matches of phase status strings (legacy support)
-    if (task.fileName === t('sftp.upload.compressing') || task.fileName === 'Compressing...' || task.fileName === 'Compressing') {
-      return t('sftp.upload.compressing');
-    }
-    if (task.fileName === t('sftp.upload.extracting') || task.fileName === 'Extracting...' || task.fileName === 'Extracting') {
-      return t('sftp.upload.extracting');
-    }
-    if (task.fileName === t('sftp.upload.scanning') || task.fileName === 'Scanning files...' || task.fileName === 'Scanning files') {
-      return t('sftp.upload.scanning');
-    }
-
-    // Check if this is a compressed upload task (legacy format)
-    if (task.fileName.includes('(compressed)')) {
-      const baseName = task.fileName.replace(' (compressed)', '');
-      return `${baseName} (${t('sftp.upload.compressed')})`;
-    }
-
-    return task.fileName;
-  };
-
-  return (
-    <div className="border-t border-border/60 bg-secondary/50 flex-shrink-0">
-      <div className="max-h-40 overflow-y-auto overflow-x-hidden">
-        {[...tasks].reverse().map((task) => {
-          const formatSpeed = (bytesPerSec: number) => {
-            if (bytesPerSec <= 0) return "";
-            if (bytesPerSec >= 1024 * 1024)
-              return `${(bytesPerSec / (1024 * 1024)).toFixed(1)} MB/s`;
-            if (bytesPerSec >= 1024)
-              return `${(bytesPerSec / 1024).toFixed(1)} KB/s`;
-            return `${Math.round(bytesPerSec)} B/s`;
-          };
-
-          const formatBytes = (bytes: number) => {
-            if (bytes === 0) return "0 B";
-            if (bytes >= 1024 * 1024)
-              return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
-            if (bytes >= 1024) return `${(bytes / 1024).toFixed(1)} KB`;
-            return `${bytes} B`;
-          };
-
-          const remainingBytes = task.totalBytes - task.transferredBytes;
-          const effectiveSpeed = task.speed > 0 ? task.speed : 0;
-          const remainingTime =
-            effectiveSpeed > 0 ? Math.ceil(remainingBytes / effectiveSpeed) : 0;
-          const remainingStr =
-            remainingTime > 60
-              ? `~${Math.ceil(remainingTime / 60)}m left`
-              : remainingTime > 0
-                ? `~${remainingTime}s left`
-                : "";
-
-          return (
-            <div
-              key={task.id}
-              className="px-4 py-2.5 flex items-center gap-3 border-b border-border/30 last:border-b-0"
-            >
-              <div className="shrink-0">
-                {(task.status === "uploading" || task.status === "downloading") && (
-                  <Loader2 size={14} className="animate-spin text-primary" />
-                )}
-                {task.status === "pending" && (
-                  task.direction === "download"
-                    ? <Download size={14} className="text-muted-foreground animate-pulse" />
-                    : <Upload size={14} className="text-muted-foreground animate-pulse" />
-                )}
-                {task.status === "completed" && (
-                  task.direction === "download"
-                    ? <Download size={14} className="text-green-500" />
-                    : <Upload size={14} className="text-green-500" />
-                )}
-                {task.status === "failed" && (
-                  <XCircle size={14} className="text-destructive" />
-                )}
-                {task.status === "cancelled" && (
-                  <XCircle size={14} className="text-muted-foreground" />
-                )}
-              </div>
-              <div className="flex-1 min-w-0">
-                <div className="flex items-center gap-2">
-                  <span className="text-xs font-medium truncate">
-                    {getDisplayName(task)}
-                  </span>
-                  {(task.status === "uploading" || task.status === "downloading") && effectiveSpeed > 0 && (
-                    <span className="text-[10px] text-primary font-mono shrink-0">
-                      {formatSpeed(effectiveSpeed)}
-                    </span>
-                  )}
-                  {(task.status === "uploading" || task.status === "downloading") && remainingStr && (
-                    <span className="text-[10px] text-muted-foreground shrink-0">
-                      {remainingStr}
-                    </span>
-                  )}
-                </div>
-                {(task.status === "uploading" || task.status === "downloading" || task.status === "pending") && (
-                  <div className="mt-1.5 flex items-center gap-2">
-                    <div className="flex-1 h-1.5 bg-secondary rounded-full overflow-hidden">
-                      <div
-                        className={cn(
-                          "h-full rounded-full transition-all duration-150",
-                          task.status === "pending"
-                            ? "bg-muted-foreground/50 animate-pulse w-full"
-                            : "bg-primary",
-                        )}
-                        style={{
-                          width:
-                            task.status === "uploading" || task.status === "downloading"
-                              ? `${task.progress}%`
-                              : undefined,
-                        }}
-                      />
-                    </div>
-                    <span className="text-[10px] text-muted-foreground font-mono shrink-0 w-8 text-right">
-                      {task.status === "uploading" || task.status === "downloading" ? `${Math.round(task.progress)}%` : "..."}
-                    </span>
-                  </div>
-                )}
-                {(task.status === "uploading" || task.status === "downloading") && task.totalBytes > 0 && (
-                  <div className="text-[10px] text-muted-foreground mt-0.5 font-mono">
-                    {formatBytes(task.transferredBytes)} / {formatBytes(task.totalBytes)}
-                  </div>
-                )}
-                {task.status === "completed" && (
-                  <div className="text-[10px] text-green-600 mt-0.5">
-                    {t(task.direction === "download" ? "sftp.download.completed" : "sftp.upload.completed")} - {formatBytes(task.totalBytes)}
-                    {task.targetPath && (
-                      <span className="text-muted-foreground ml-1">→ {task.targetPath}</span>
-                    )}
-                  </div>
-                )}
-                {task.status === "cancelled" && (
-                  <div className="text-[10px] text-muted-foreground mt-0.5">
-                    {t(task.direction === "download" ? "sftp.download.cancelled" : "sftp.upload.cancelled")}
-                  </div>
-                )}
-                {task.status === "failed" && task.error && (
-                  <div className="text-[10px] text-destructive truncate mt-0.5">
-                    {task.error}
-                  </div>
-                )}
-              </div>
-              <div className="shrink-0 flex items-center gap-1">
-                {task.status === "pending" && (
-                  <span className="text-[10px] text-muted-foreground">
-                    {t("sftp.task.waiting")}
-                  </span>
-                )}
-                {(task.status === "uploading" || task.status === "downloading" || task.status === "pending") && (onCancelTask || onCancel) && (
-                  <Button
-                    variant="ghost"
-                    size="icon"
-                    className="h-6 w-6 text-destructive hover:text-destructive"
-                    onClick={() => {
-                      // For download tasks or when onCancelTask is available, use task-specific cancel
-                      if (onCancelTask) {
-                        onCancelTask(task.id);
-                      } else if (onCancel) {
-                        onCancel();
-                      }
-                    }}
-                    title={t("sftp.action.cancel")}
-                  >
-                    <X size={12} />
-                  </Button>
-                )}
-                {(task.status === "completed" || task.status === "failed" || task.status === "cancelled") && onDismiss && (
-                  <Button
-                    variant="ghost"
-                    size="icon"
-                    className="h-6 w-6 text-muted-foreground hover:text-foreground"
-                    onClick={() => onDismiss(task.id)}
-                    title={t("sftp.action.dismiss")}
-                  >
-                    <X size={12} />
-                  </Button>
-                )}
-              </div>
-            </div>
-          );
-        })}
-      </div>
-    </div>
-  );
-};

components/sftp-modal/fileIcons.tsx

@@ -1,149 +0,0 @@
-import {
-  Database,
-  ExternalLink,
-  File,
-  FileArchive,
-  FileAudio,
-  FileCode,
-  FileImage,
-  FileSpreadsheet,
-  FileText,
-  FileType,
-  FileVideo,
-  Folder,
-  Globe,
-  Lock,
-  Settings,
-  Terminal,
-} from "lucide-react";
-import React from "react";
-
-export const getFileIcon = (fileName: string, isDirectory: boolean, isSymlink?: boolean) => {
-  if (isDirectory)
-    return (
-      <Folder
-        size={18}
-        fill="currentColor"
-        fillOpacity={0.2}
-        className="text-blue-400"
-      />
-    );
-
-  if (isSymlink) {
-    return <ExternalLink size={18} className="text-cyan-500" />;
-  }
-
-  const ext = fileName.split(".").pop()?.toLowerCase() || "";
-
-  if (["doc", "docx", "rtf", "odt"].includes(ext))
-    return <FileText size={18} className="text-blue-500" />;
-  if (["xls", "xlsx", "csv", "ods"].includes(ext))
-    return <FileSpreadsheet size={18} className="text-green-500" />;
-  if (["ppt", "pptx", "odp"].includes(ext))
-    return <FileType size={18} className="text-orange-500" />;
-  if (["pdf"].includes(ext))
-    return <FileText size={18} className="text-red-500" />;
-
-  if (["js", "jsx", "ts", "tsx", "mjs", "cjs"].includes(ext))
-    return <FileCode size={18} className="text-yellow-500" />;
-  if (["py", "pyc", "pyw"].includes(ext))
-    return <FileCode size={18} className="text-blue-400" />;
-  if (["sh", "bash", "zsh", "fish", "bat", "cmd", "ps1"].includes(ext))
-    return <Terminal size={18} className="text-green-400" />;
-  if (["c", "cpp", "h", "hpp", "cc", "cxx"].includes(ext))
-    return <FileCode size={18} className="text-blue-600" />;
-  if (["java", "class", "jar"].includes(ext))
-    return <FileCode size={18} className="text-orange-600" />;
-  if (["go"].includes(ext))
-    return <FileCode size={18} className="text-cyan-500" />;
-  if (["rs"].includes(ext))
-    return <FileCode size={18} className="text-orange-400" />;
-  if (["rb"].includes(ext))
-    return <FileCode size={18} className="text-red-400" />;
-  if (["php"].includes(ext))
-    return <FileCode size={18} className="text-purple-500" />;
-  if (["html", "htm", "xhtml"].includes(ext))
-    return <Globe size={18} className="text-orange-500" />;
-  if (["css", "scss", "sass", "less"].includes(ext))
-    return <FileCode size={18} className="text-blue-500" />;
-  if (["vue", "svelte"].includes(ext))
-    return <FileCode size={18} className="text-green-500" />;
-
-  if (["json", "json5"].includes(ext))
-    return <FileCode size={18} className="text-yellow-600" />;
-  if (["xml", "xsl", "xslt"].includes(ext))
-    return <FileCode size={18} className="text-orange-400" />;
-  if (["yml", "yaml"].includes(ext))
-    return <Settings size={18} className="text-pink-400" />;
-  if (["toml", "ini", "conf", "cfg", "config"].includes(ext))
-    return <Settings size={18} className="text-gray-400" />;
-  if (["env"].includes(ext))
-    return <Lock size={18} className="text-yellow-500" />;
-  if (["sql", "sqlite", "db"].includes(ext))
-    return <Database size={18} className="text-blue-400" />;
-
-  if (
-    [
-      "jpg",
-      "jpeg",
-      "png",
-      "gif",
-      "bmp",
-      "webp",
-      "svg",
-      "ico",
-      "tiff",
-      "tif",
-      "heic",
-      "heif",
-      "avif",
-    ].includes(ext)
-  )
-    return <FileImage size={18} className="text-purple-400" />;
-
-  if (
-    [
-      "mp4",
-      "mkv",
-      "avi",
-      "mov",
-      "wmv",
-      "flv",
-      "webm",
-      "m4v",
-      "3gp",
-      "mpeg",
-      "mpg",
-    ].includes(ext)
-  )
-    return <FileVideo size={18} className="text-pink-500" />;
-
-  if (
-    ["mp3", "wav", "flac", "aac", "ogg", "m4a", "wma", "opus", "aiff"].includes(
-      ext,
-    )
-  )
-    return <FileAudio size={18} className="text-green-400" />;
-
-  if (
-    [
-      "zip",
-      "rar",
-      "7z",
-      "tar",
-      "gz",
-      "bz2",
-      "xz",
-      "tgz",
-      "tbz2",
-      "lz",
-      "lzma",
-      "cab",
-      "iso",
-      "dmg",
-    ].includes(ext)
-  )
-    return <FileArchive size={18} className="text-yellow-600" />;
-
-  return <File size={18} className="text-muted-foreground" />;
-};

components/sftp-modal/hooks/useSftpModalCreateDelete.ts

@@ -1,140 +0,0 @@
-import { useCallback, useState } from "react";
-import type { RemoteFile } from "../../../types";
-import { toast } from "../../ui/toast";
-
-interface UseSftpModalCreateDeleteParams {
-  currentPath: string;
-  isLocalSession: boolean;
-  joinPath: (base: string, name: string) => string;
-  ensureSftp: () => Promise<string>;
-  loadFiles: (path: string, options?: { force?: boolean }) => Promise<void>;
-  deleteLocalFile: (path: string) => Promise<void>;
-  deleteSftp: (sftpId: string, path: string) => Promise<void>;
-  mkdirLocal: (path: string) => Promise<void>;
-  mkdirSftp: (sftpId: string, path: string) => Promise<void>;
-  writeLocalFile: (path: string, data: ArrayBuffer) => Promise<void>;
-  writeSftpBinary: (sftpId: string, path: string, data: ArrayBuffer) => Promise<void>;
-  writeSftp: (sftpId: string, path: string, data: string) => Promise<void>;
-  t: (key: string, params?: Record<string, unknown>) => string;
-}
-
-interface UseSftpModalCreateDeleteResult {
-  handleDelete: (file: RemoteFile) => Promise<void>;
-  handleCreateFolder: () => void;
-  handleCreateFile: () => void;
-  // Create dialog state
-  showCreateDialog: boolean;
-  setShowCreateDialog: (open: boolean) => void;
-  createType: "file" | "folder";
-  createName: string;
-  setCreateName: (value: string) => void;
-  isCreating: boolean;
-  handleCreateSubmit: () => Promise<void>;
-}
-
-export const useSftpModalCreateDelete = ({
-  currentPath,
-  isLocalSession,
-  joinPath,
-  ensureSftp,
-  loadFiles,
-  deleteLocalFile,
-  deleteSftp,
-  mkdirLocal,
-  mkdirSftp,
-  writeLocalFile,
-  writeSftpBinary,
-  writeSftp,
-  t,
-}: UseSftpModalCreateDeleteParams): UseSftpModalCreateDeleteResult => {
-  const [showCreateDialog, setShowCreateDialog] = useState(false);
-  const [createType, setCreateType] = useState<"file" | "folder">("folder");
-  const [createName, setCreateName] = useState("");
-  const [isCreating, setIsCreating] = useState(false);
-
-  const handleDelete = useCallback(
-    async (file: RemoteFile) => {
-      if (file.name === "..") return;
-      if (!confirm(t("sftp.deleteConfirm.single", { name: file.name }))) return;
-
-      try {
-        const fullPath = joinPath(currentPath, file.name);
-        if (isLocalSession) {
-          await deleteLocalFile(fullPath);
-        } else {
-          await deleteSftp(await ensureSftp(), fullPath);
-        }
-        await loadFiles(currentPath, { force: true });
-      } catch (e) {
-        toast.error(
-          e instanceof Error ? e.message : t("sftp.error.deleteFailed"),
-          "SFTP",
-        );
-      }
-    },
-    [currentPath, deleteLocalFile, deleteSftp, ensureSftp, isLocalSession, joinPath, loadFiles, t],
-  );
-
-  const handleCreateFolder = useCallback(() => {
-    setCreateType("folder");
-    setCreateName("");
-    setShowCreateDialog(true);
-  }, []);
-
-  const handleCreateFile = useCallback(() => {
-    setCreateType("file");
-    setCreateName("");
-    setShowCreateDialog(true);
-  }, []);
-
-  const handleCreateSubmit = useCallback(async () => {
-    const name = createName.trim();
-    if (!name || isCreating) return;
-    setIsCreating(true);
-    try {
-      const fullPath = joinPath(currentPath, name);
-      if (createType === "folder") {
-        if (isLocalSession) {
-          await mkdirLocal(fullPath);
-        } else {
-          await mkdirSftp(await ensureSftp(), fullPath);
-        }
-      } else {
-        if (isLocalSession) {
-          await writeLocalFile(fullPath, new ArrayBuffer(0));
-        } else {
-          try {
-            await writeSftpBinary(await ensureSftp(), fullPath, new ArrayBuffer(0));
-          } catch {
-            await writeSftp(await ensureSftp(), fullPath, "");
-          }
-        }
-      }
-      setShowCreateDialog(false);
-      setCreateName("");
-      await loadFiles(currentPath, { force: true });
-    } catch (e) {
-      toast.error(
-        e instanceof Error
-          ? e.message
-          : t(createType === "folder" ? "sftp.error.createFolderFailed" : "sftp.error.createFileFailed"),
-        "SFTP",
-      );
-    } finally {
-      setIsCreating(false);
-    }
-  }, [createName, createType, currentPath, ensureSftp, isCreating, isLocalSession, joinPath, loadFiles, mkdirLocal, mkdirSftp, t, writeLocalFile, writeSftp, writeSftpBinary]);
-
-  return {
-    handleDelete,
-    handleCreateFolder,
-    handleCreateFile,
-    showCreateDialog,
-    setShowCreateDialog,
-    createType,
-    createName,
-    setCreateName,
-    isCreating,
-    handleCreateSubmit,
-  };
-};

components/sftp-modal/hooks/useSftpModalFileActions.ts

@@ -1,277 +0,0 @@
-import type { RemoteFile } from "../../../types";
-import { useSftpModalCreateDelete } from "./useSftpModalCreateDelete";
-import { useSftpModalRename } from "./useSftpModalRename";
-import { useSftpModalPermissions } from "./useSftpModalPermissions";
-import { useSftpModalTextEditor } from "./useSftpModalTextEditor";
-import { useSftpModalFileOpener } from "./useSftpModalFileOpener";
-import type { FileOpenerType, SystemAppInfo } from "../../../lib/sftpFileUtils";
-
-interface UseSftpModalFileActionsParams {
-  currentPath: string;
-  isLocalSession: boolean;
-  joinPath: (base: string, name: string) => string;
-  ensureSftp: () => Promise<string>;
-  loadFiles: (path: string, options?: { force?: boolean }) => Promise<void>;
-  readLocalFile: (path: string) => Promise<ArrayBuffer>;
-  readSftp: (sftpId: string, path: string) => Promise<string>;
-  writeLocalFile: (path: string, data: ArrayBuffer) => Promise<void>;
-  writeSftp: (sftpId: string, path: string, data: string) => Promise<void>;
-  writeSftpBinary: (sftpId: string, path: string, data: ArrayBuffer) => Promise<void>;
-  deleteLocalFile: (path: string) => Promise<void>;
-  deleteSftp: (sftpId: string, path: string) => Promise<void>;
-  mkdirLocal: (path: string) => Promise<void>;
-  mkdirSftp: (sftpId: string, path: string) => Promise<void>;
-  renameSftp: (sftpId: string, oldPath: string, newPath: string) => Promise<void>;
-  chmodSftp: (sftpId: string, path: string, permissions: string) => Promise<void>;
-  statSftp: (sftpId: string, path: string) => Promise<{ permissions?: string }>;
-  t: (key: string, params?: Record<string, unknown>) => string;
-  sftpAutoSync: boolean;
-  getOpenerForFile: (name: string) => { openerType: FileOpenerType; systemApp?: SystemAppInfo } | null;
-  setOpenerForExtension: (ext: string, openerType: FileOpenerType, systemApp?: SystemAppInfo) => void;
-  downloadSftpToTempAndOpen: (sftpId: string, path: string, fileName: string, appPath: string, opts: { enableWatch: boolean }) => Promise<void>;
-  selectApplication: () => Promise<{ path: string; name: string } | null>;
-}
-
-interface UseSftpModalFileActionsResult {
-  handleDelete: (file: RemoteFile) => Promise<void>;
-  handleCreateFolder: () => void;
-  handleCreateFile: () => void;
-  showCreateDialog: boolean;
-  setShowCreateDialog: (open: boolean) => void;
-  createType: "file" | "folder";
-  createName: string;
-  setCreateName: (value: string) => void;
-  isCreating: boolean;
-  handleCreateSubmit: () => Promise<void>;
-  showRenameDialog: boolean;
-  setShowRenameDialog: (open: boolean) => void;
-  renameTarget: RemoteFile | null;
-  renameName: string;
-  setRenameName: (value: string) => void;
-  isRenaming: boolean;
-  openRenameDialog: (file: RemoteFile) => void;
-  handleRename: () => Promise<void>;
-  showPermissionsDialog: boolean;
-  setShowPermissionsDialog: (open: boolean) => void;
-  permissionsTarget: RemoteFile | null;
-  permissions: {
-    owner: { read: boolean; write: boolean; execute: boolean };
-    group: { read: boolean; write: boolean; execute: boolean };
-    others: { read: boolean; write: boolean; execute: boolean };
-  };
-  isChangingPermissions: boolean;
-  openPermissionsDialog: (file: RemoteFile) => Promise<void>;
-  togglePermission: (role: "owner" | "group" | "others", perm: "read" | "write" | "execute") => void;
-  getOctalPermissions: () => string;
-  getSymbolicPermissions: () => string;
-  handleSavePermissions: () => Promise<void>;
-  showFileOpenerDialog: boolean;
-  setShowFileOpenerDialog: (open: boolean) => void;
-  fileOpenerTarget: RemoteFile | null;
-  setFileOpenerTarget: (target: RemoteFile | null) => void;
-  openFileOpenerDialog: (file: RemoteFile) => void;
-  handleFileOpenerSelect: (
-    openerType: FileOpenerType,
-    setAsDefault: boolean,
-    systemApp?: SystemAppInfo,
-  ) => Promise<void>;
-  handleSelectSystemApp: () => Promise<SystemAppInfo | null>;
-  showTextEditor: boolean;
-  setShowTextEditor: (open: boolean) => void;
-  textEditorTarget: RemoteFile | null;
-  setTextEditorTarget: (target: RemoteFile | null) => void;
-  textEditorContent: string;
-  setTextEditorContent: (value: string) => void;
-  loadingTextContent: boolean;
-  handleEditFile: (file: RemoteFile) => Promise<void>;
-  handleSaveTextFile: (content: string) => Promise<void>;
-  handleOpenFile: (file: RemoteFile) => Promise<void>;
-}
-
-export const useSftpModalFileActions = ({
-  currentPath,
-  isLocalSession,
-  joinPath,
-  ensureSftp,
-  loadFiles,
-  readLocalFile,
-  readSftp,
-  writeLocalFile,
-  writeSftp,
-  writeSftpBinary,
-  deleteLocalFile,
-  deleteSftp,
-  mkdirLocal,
-  mkdirSftp,
-  renameSftp,
-  chmodSftp,
-  statSftp,
-  t,
-  sftpAutoSync,
-  getOpenerForFile,
-  setOpenerForExtension,
-  downloadSftpToTempAndOpen,
-  selectApplication,
-}: UseSftpModalFileActionsParams): UseSftpModalFileActionsResult => {
-  const {
-    handleDelete,
-    handleCreateFolder,
-    handleCreateFile,
-    showCreateDialog,
-    setShowCreateDialog,
-    createType,
-    createName,
-    setCreateName,
-    isCreating,
-    handleCreateSubmit,
-  } =
-    useSftpModalCreateDelete({
-      currentPath,
-      isLocalSession,
-      joinPath,
-      ensureSftp,
-      loadFiles,
-      deleteLocalFile,
-      deleteSftp,
-      mkdirLocal,
-      mkdirSftp,
-      writeLocalFile,
-      writeSftpBinary,
-      writeSftp,
-      t,
-    });
-
-  const {
-    showRenameDialog,
-    setShowRenameDialog,
-    renameTarget,
-    renameName,
-    setRenameName,
-    isRenaming,
-    openRenameDialog,
-    handleRename,
-  } = useSftpModalRename({
-    currentPath,
-    isLocalSession,
-    joinPath,
-    ensureSftp,
-    loadFiles,
-    renameSftp,
-    t,
-  });
-
-  const {
-    showPermissionsDialog,
-    setShowPermissionsDialog,
-    permissionsTarget,
-    permissions,
-    isChangingPermissions,
-    openPermissionsDialog,
-    togglePermission,
-    getOctalPermissions,
-    getSymbolicPermissions,
-    handleSavePermissions,
-  } = useSftpModalPermissions({
-    currentPath,
-    isLocalSession,
-    joinPath,
-    ensureSftp,
-    loadFiles,
-    chmodSftp,
-    statSftp,
-    t,
-  });
-
-  const {
-    showTextEditor,
-    setShowTextEditor,
-    textEditorTarget,
-    setTextEditorTarget,
-    textEditorContent,
-    setTextEditorContent,
-    loadingTextContent,
-    handleEditFile,
-    handleSaveTextFile,
-  } = useSftpModalTextEditor({
-    currentPath,
-    isLocalSession,
-    joinPath,
-    ensureSftp,
-    readLocalFile,
-    readSftp,
-    writeLocalFile,
-    writeSftp,
-    t,
-  });
-
-  const {
-    showFileOpenerDialog,
-    setShowFileOpenerDialog,
-    fileOpenerTarget,
-    setFileOpenerTarget,
-    openFileOpenerDialog,
-    handleOpenFile,
-    handleFileOpenerSelect,
-    handleSelectSystemApp,
-  } = useSftpModalFileOpener({
-    currentPath,
-    isLocalSession,
-    joinPath,
-    ensureSftp,
-    sftpAutoSync,
-    getOpenerForFile,
-    setOpenerForExtension,
-    downloadSftpToTempAndOpen,
-    selectApplication,
-    t,
-    handleEditFile,
-  });
-
-  return {
-    handleDelete,
-    handleCreateFolder,
-    handleCreateFile,
-    showCreateDialog,
-    setShowCreateDialog,
-    createType,
-    createName,
-    setCreateName,
-    isCreating,
-    handleCreateSubmit,
-    showRenameDialog,
-    setShowRenameDialog,
-    renameTarget,
-    renameName,
-    setRenameName,
-    isRenaming,
-    openRenameDialog,
-    handleRename,
-    showPermissionsDialog,
-    setShowPermissionsDialog,
-    permissionsTarget,
-    permissions,
-    isChangingPermissions,
-    openPermissionsDialog,
-    togglePermission,
-    getOctalPermissions,
-    getSymbolicPermissions,
-    handleSavePermissions,
-    showFileOpenerDialog,
-    setShowFileOpenerDialog,
-    fileOpenerTarget,
-    setFileOpenerTarget,
-    openFileOpenerDialog,
-    handleFileOpenerSelect,
-    handleSelectSystemApp,
-    showTextEditor,
-    setShowTextEditor,
-    textEditorTarget,
-    setTextEditorTarget,
-    textEditorContent,
-    setTextEditorContent,
-    loadingTextContent,
-    handleEditFile,
-    handleSaveTextFile,
-    handleOpenFile,
-  };
-};

components/sftp-modal/hooks/useSftpModalFileOpener.ts

@@ -1,154 +0,0 @@
-import { useCallback, useState } from "react";
-import type { RemoteFile } from "../../../types";
-import { toast } from "../../ui/toast";
-import { getFileExtension, FileOpenerType, SystemAppInfo } from "../../../lib/sftpFileUtils";
-
-interface UseSftpModalFileOpenerParams {
-  currentPath: string;
-  isLocalSession: boolean;
-  joinPath: (base: string, name: string) => string;
-  ensureSftp: () => Promise<string>;
-  sftpAutoSync: boolean;
-  getOpenerForFile: (name: string) => { openerType: FileOpenerType; systemApp?: SystemAppInfo } | null;
-  setOpenerForExtension: (ext: string, openerType: FileOpenerType, systemApp?: SystemAppInfo) => void;
-  downloadSftpToTempAndOpen: (sftpId: string, path: string, fileName: string, appPath: string, opts: { enableWatch: boolean }) => Promise<void>;
-  selectApplication: () => Promise<{ path: string; name: string } | null>;
-  t: (key: string, params?: Record<string, unknown>) => string;
-  handleEditFile: (file: RemoteFile) => Promise<void>;
-}
-
-interface UseSftpModalFileOpenerResult {
-  showFileOpenerDialog: boolean;
-  setShowFileOpenerDialog: (open: boolean) => void;
-  fileOpenerTarget: RemoteFile | null;
-  setFileOpenerTarget: (target: RemoteFile | null) => void;
-  openFileOpenerDialog: (file: RemoteFile) => void;
-  handleOpenFile: (file: RemoteFile) => Promise<void>;
-  handleFileOpenerSelect: (
-    openerType: FileOpenerType,
-    setAsDefault: boolean,
-    systemApp?: SystemAppInfo,
-  ) => Promise<void>;
-  handleSelectSystemApp: () => Promise<SystemAppInfo | null>;
-}
-
-export const useSftpModalFileOpener = ({
-  currentPath,
-  isLocalSession,
-  joinPath,
-  ensureSftp,
-  sftpAutoSync,
-  getOpenerForFile,
-  setOpenerForExtension,
-  downloadSftpToTempAndOpen,
-  selectApplication,
-  t,
-  handleEditFile,
-}: UseSftpModalFileOpenerParams): UseSftpModalFileOpenerResult => {
-  const [showFileOpenerDialog, setShowFileOpenerDialog] = useState(false);
-  const [fileOpenerTarget, setFileOpenerTarget] = useState<RemoteFile | null>(null);
-
-  const openFileOpenerDialog = useCallback((file: RemoteFile) => {
-    setFileOpenerTarget(file);
-    setShowFileOpenerDialog(true);
-  }, []);
-
-  const handleOpenFile = useCallback(async (file: RemoteFile) => {
-    const savedOpener = getOpenerForFile(file.name);
-
-    if (savedOpener) {
-      if (savedOpener.openerType === "builtin-editor") {
-        await handleEditFile(file);
-      } else if (savedOpener.openerType === "system-app" && savedOpener.systemApp) {
-        try {
-          const fullPath = joinPath(currentPath, file.name);
-          if (isLocalSession) {
-            const bridge = (window as unknown as { netcatty?: NetcattyBridge }).netcatty;
-            if (bridge?.openWithApplication) {
-              await bridge.openWithApplication(fullPath, savedOpener.systemApp.path);
-            }
-          } else {
-            const sftpId = await ensureSftp();
-            await downloadSftpToTempAndOpen(
-              sftpId,
-              fullPath,
-              file.name,
-              savedOpener.systemApp.path,
-              { enableWatch: sftpAutoSync },
-            );
-          }
-        } catch (e) {
-          toast.error(
-            e instanceof Error ? e.message : t("sftp.error.openFailed"),
-            "SFTP",
-          );
-        }
-      }
-    } else {
-      openFileOpenerDialog(file);
-    }
-  }, [currentPath, downloadSftpToTempAndOpen, ensureSftp, getOpenerForFile, handleEditFile, isLocalSession, joinPath, openFileOpenerDialog, sftpAutoSync, t]);
-
-  const handleFileOpenerSelect = useCallback(
-    async (openerType: FileOpenerType, setAsDefault: boolean, systemApp?: SystemAppInfo) => {
-      if (!fileOpenerTarget) return;
-
-      if (setAsDefault) {
-        const ext = getFileExtension(fileOpenerTarget.name);
-        setOpenerForExtension(ext, openerType, systemApp);
-      }
-
-      setShowFileOpenerDialog(false);
-
-      if (openerType === "builtin-editor") {
-        await handleEditFile(fileOpenerTarget);
-      } else if (openerType === "system-app" && systemApp) {
-        try {
-          const fullPath = joinPath(currentPath, fileOpenerTarget.name);
-          if (isLocalSession) {
-            const bridge = (window as unknown as { netcatty?: NetcattyBridge }).netcatty;
-            if (bridge?.openWithApplication) {
-              await bridge.openWithApplication(fullPath, systemApp.path);
-            }
-          } else {
-            const sftpId = await ensureSftp();
-            await downloadSftpToTempAndOpen(
-              sftpId,
-              fullPath,
-              fileOpenerTarget.name,
-              systemApp.path,
-              { enableWatch: sftpAutoSync },
-            );
-          }
-        } catch (e) {
-          toast.error(
-            e instanceof Error ? e.message : t("sftp.error.openFailed"),
-            "SFTP",
-          );
-        }
-      }
-
-      setFileOpenerTarget(null);
-    },
-    [currentPath, downloadSftpToTempAndOpen, ensureSftp, fileOpenerTarget, handleEditFile, isLocalSession, joinPath, sftpAutoSync, setOpenerForExtension, t],
-  );
-
-  const handleSelectSystemApp = useCallback(async (): Promise<SystemAppInfo | null> => {
-    const result = await selectApplication();
-    if (result) {
-      return { path: result.path, name: result.name };
-    }
-    return null;
-  }, [selectApplication]);
-
-  return {
-    showFileOpenerDialog,
-    setShowFileOpenerDialog,
-    fileOpenerTarget,
-    setFileOpenerTarget,
-    openFileOpenerDialog,
-    handleOpenFile,
-    handleFileOpenerSelect,
-    handleSelectSystemApp,
-  };
-};

components/sftp-modal/hooks/useSftpModalKeyboardShortcuts.ts

@@ -1,156 +0,0 @@
-/**
- * useSftpModalKeyboardShortcuts
- * 
- * Hook that handles keyboard shortcuts for SFTPModal operations.
- * Supports select all, rename, delete, refresh, and new folder.
- * Note: Copy/Cut/Paste are not supported in the modal as it's a single-pane view.
- */
-
-import { useCallback, useEffect } from "react";
-import { KeyBinding, matchesKeyBinding } from "../../../domain/models";
-import type { RemoteFile } from "../../../types";
-
-// SFTP Modal action names that we handle (subset of main SFTP actions)
-const SFTP_MODAL_ACTIONS = new Set([
-  "sftpSelectAll",
-  "sftpRename",
-  "sftpDelete",
-  "sftpRefresh",
-  "sftpNewFolder",
-]);
-
-interface UseSftpModalKeyboardShortcutsParams {
-  keyBindings: KeyBinding[];
-  hotkeyScheme: "disabled" | "mac" | "pc";
-  open: boolean;
-  files: RemoteFile[];
-  visibleFiles: RemoteFile[];
-  selectedFiles: Set<string>;
-  setSelectedFiles: (files: Set<string>) => void;
-  onRefresh: () => void;
-  onRename?: (file: RemoteFile) => void;
-  onDelete?: (fileNames: string[]) => void;
-  onNewFolder?: () => void;
-}
-
-/**
- * Check if a keyboard event matches any SFTP action
- */
-const matchSftpAction = (
-  e: KeyboardEvent,
-  keyBindings: KeyBinding[],
-  isMac: boolean
-): { action: string; binding: KeyBinding } | null => {
-  for (const binding of keyBindings) {
-    if (binding.category !== "sftp") continue;
-    const keyStr = isMac ? binding.mac : binding.pc;
-    if (matchesKeyBinding(e, keyStr, isMac)) {
-      return { action: binding.action, binding };
-    }
-  }
-  return null;
-};
-
-export const useSftpModalKeyboardShortcuts = ({
-  keyBindings,
-  hotkeyScheme,
-  open,
-  files,
-  visibleFiles,
-  selectedFiles,
-  setSelectedFiles,
-  onRefresh,
-  onRename,
-  onDelete,
-  onNewFolder,
-}: UseSftpModalKeyboardShortcutsParams) => {
-  const handleKeyDown = useCallback(
-    (e: KeyboardEvent) => {
-      // Skip if shortcuts are disabled or modal is not open
-      if (hotkeyScheme === "disabled" || !open) return;
-
-      // Skip if focus is on an input element
-      const target = e.target as HTMLElement;
-      const isEditableTarget =
-        target.tagName === "INPUT" ||
-        target.tagName === "TEXTAREA" ||
-        target.isContentEditable ||
-        !!target.closest?.(".monaco-editor, .monaco-diff-editor, .monaco-inputbox");
-      if (isEditableTarget) {
-        return;
-      }
-
-      const isMac = hotkeyScheme === "mac";
-      const matched = matchSftpAction(e, keyBindings, isMac);
-      if (!matched) return;
-
-      const { action } = matched;
-      if (!SFTP_MODAL_ACTIONS.has(action)) return;
-
-      // Prevent default behavior
-      e.preventDefault();
-      e.stopPropagation();
-
-      switch (action) {
-        case "sftpSelectAll": {
-          // Select all files
-          const allFileNames = new Set(
-            visibleFiles.filter((f) => f.name !== "..").map((f) => f.name)
-          );
-          setSelectedFiles(allFileNames);
-          break;
-        }
-
-        case "sftpRename": {
-          // Trigger rename for the first selected file
-          const selectedArray = Array.from(selectedFiles);
-          if (selectedArray.length !== 1) return;
-          const file = files.find((f) => f.name === selectedArray[0]);
-          if (file && onRename) {
-            onRename(file);
-          }
-          break;
-        }
-
-        case "sftpDelete": {
-          // Delete selected files
-          const selectedArray = Array.from(selectedFiles);
-          if (selectedArray.length === 0) return;
-          onDelete?.(selectedArray);
-          break;
-        }
-
-        case "sftpRefresh": {
-          // Refresh file list
-          onRefresh();
-          break;
-        }
-
-        case "sftpNewFolder": {
-          // Create new folder
-          onNewFolder?.();
-          break;
-        }
-      }
-    },
-    [
-      hotkeyScheme,
-      open,
-      files,
-      visibleFiles,
-      selectedFiles,
-      setSelectedFiles,
-      onRefresh,
-      onRename,
-      onDelete,
-      onNewFolder,
-      keyBindings,
-    ]
-  );
-
-  useEffect(() => {
-    // Use capture phase to intercept before other handlers
-    window.addEventListener("keydown", handleKeyDown, true);
-    return () => window.removeEventListener("keydown", handleKeyDown, true);
-  }, [handleKeyDown]);
-};

components/sftp-modal/hooks/useSftpModalPath.ts

@@ -1,135 +0,0 @@
-import React, { useCallback, useMemo, useRef, useState } from "react";
-import { breadcrumbPathAt, getBreadcrumbs, getRootPath, getWindowsDrive, isWindowsPath } from "../pathUtils";
-
-interface UseSftpModalPathParams {
-  currentPath: string;
-  isLocalSession: boolean;
-  localHomePath: string | null;
-  onNavigate: (path: string) => void;
-  maxVisibleBreadcrumbParts?: number;
-}
-
-interface UseSftpModalPathResult {
-  isEditingPath: boolean;
-  editingPathValue: string;
-  setEditingPathValue: (value: string) => void;
-  pathInputRef: React.RefObject<HTMLInputElement>;
-  handlePathDoubleClick: () => void;
-  handlePathSubmit: () => void;
-  handlePathKeyDown: (e: React.KeyboardEvent) => void;
-  breadcrumbs: string[];
-  visibleBreadcrumbs: { part: string; originalIndex: number }[];
-  hiddenBreadcrumbs: { part: string; originalIndex: number }[];
-  needsBreadcrumbTruncation: boolean;
-  breadcrumbPathAtForIndex: (index: number) => string;
-  rootLabel: string;
-  rootPath: string;
-}
-
-export const useSftpModalPath = ({
-  currentPath,
-  isLocalSession,
-  localHomePath,
-  onNavigate,
-  maxVisibleBreadcrumbParts = 4,
-}: UseSftpModalPathParams): UseSftpModalPathResult => {
-  const [isEditingPath, setIsEditingPath] = useState(false);
-  const [editingPathValue, setEditingPathValue] = useState("");
-  const pathInputRef = useRef<HTMLInputElement>(null);
-
-  const handlePathDoubleClick = () => {
-    setEditingPathValue(currentPath);
-    setIsEditingPath(true);
-    setTimeout(() => pathInputRef.current?.select(), 0);
-  };
-
-  const handlePathSubmit = () => {
-    const fallbackPath = localHomePath || getRootPath(currentPath, isLocalSession);
-    const newPath = editingPathValue.trim() || fallbackPath;
-    setIsEditingPath(false);
-    if (newPath !== currentPath) {
-      if (isLocalSession) {
-        onNavigate(newPath);
-      } else {
-        onNavigate(newPath.startsWith("/") ? newPath : `/${newPath}`);
-      }
-    }
-  };
-
-  const handlePathKeyDown = (e: React.KeyboardEvent) => {
-    if (e.key === "Enter") {
-      handlePathSubmit();
-    } else if (e.key === "Escape") {
-      setIsEditingPath(false);
-    }
-  };
-
-  const breadcrumbs = useMemo(
-    () => getBreadcrumbs(currentPath, isLocalSession),
-    [currentPath, isLocalSession],
-  );
-
-  const { visibleBreadcrumbs, hiddenBreadcrumbs, needsBreadcrumbTruncation } =
-    useMemo(() => {
-      if (breadcrumbs.length <= maxVisibleBreadcrumbParts) {
-        return {
-          visibleBreadcrumbs: breadcrumbs.map((part, idx) => ({ part, originalIndex: idx })),
-          hiddenBreadcrumbs: [] as { part: string; originalIndex: number }[],
-          needsBreadcrumbTruncation: false,
-        };
-      }
-
-      const firstPart = [{ part: breadcrumbs[0], originalIndex: 0 }];
-      const lastPartsCount = maxVisibleBreadcrumbParts - 1;
-      const lastParts = breadcrumbs.slice(-lastPartsCount).map((part, idx) => ({
-        part,
-        originalIndex: breadcrumbs.length - lastPartsCount + idx,
-      }));
-      const hidden = breadcrumbs.slice(1, -lastPartsCount).map((part, idx) => ({
-        part,
-        originalIndex: idx + 1,
-      }));
-
-      return {
-        visibleBreadcrumbs: [...firstPart, ...lastParts],
-        hiddenBreadcrumbs: hidden,
-        needsBreadcrumbTruncation: true,
-      };
-    }, [breadcrumbs, maxVisibleBreadcrumbParts]);
-
-  const breadcrumbPathAtForIndex = useCallback(
-    (index: number) =>
-      breadcrumbPathAt(breadcrumbs, index, currentPath, isLocalSession),
-    [breadcrumbs, currentPath, isLocalSession],
-  );
-
-  const rootLabel = useMemo(
-    () =>
-      isLocalSession && isWindowsPath(currentPath)
-        ? getWindowsDrive(currentPath) ?? "C:"
-        : "/",
-    [currentPath, isLocalSession],
-  );
-
-  const rootPath = useMemo(
-    () => getRootPath(currentPath, isLocalSession),
-    [currentPath, isLocalSession],
-  );
-
-  return {
-    isEditingPath,
-    editingPathValue,
-    setEditingPathValue,
-    pathInputRef,
-    handlePathDoubleClick,
-    handlePathSubmit,
-    handlePathKeyDown,
-    breadcrumbs,
-    visibleBreadcrumbs,
-    hiddenBreadcrumbs,
-    needsBreadcrumbTruncation,
-    breadcrumbPathAtForIndex,
-    rootLabel,
-    rootPath,
-  };
-};

components/sftp-modal/hooks/useSftpModalPermissions.ts

@@ -1,189 +0,0 @@
-import { useCallback, useState } from "react";
-import type { RemoteFile } from "../../../types";
-import { toast } from "../../ui/toast";
-
-interface UseSftpModalPermissionsParams {
-  currentPath: string;
-  isLocalSession: boolean;
-  joinPath: (base: string, name: string) => string;
-  ensureSftp: () => Promise<string>;
-  loadFiles: (path: string, options?: { force?: boolean }) => Promise<void>;
-  chmodSftp: (sftpId: string, path: string, permissions: string) => Promise<void>;
-  statSftp: (sftpId: string, path: string) => Promise<{ permissions?: string }>;
-  t: (key: string, params?: Record<string, unknown>) => string;
-}
-
-interface PermissionsState {
-  owner: { read: boolean; write: boolean; execute: boolean };
-  group: { read: boolean; write: boolean; execute: boolean };
-  others: { read: boolean; write: boolean; execute: boolean };
-}
-
-interface UseSftpModalPermissionsResult {
-  showPermissionsDialog: boolean;
-  setShowPermissionsDialog: (open: boolean) => void;
-  permissionsTarget: RemoteFile | null;
-  permissions: PermissionsState;
-  isChangingPermissions: boolean;
-  openPermissionsDialog: (file: RemoteFile) => Promise<void>;
-  togglePermission: (role: "owner" | "group" | "others", perm: "read" | "write" | "execute") => void;
-  getOctalPermissions: () => string;
-  getSymbolicPermissions: () => string;
-  handleSavePermissions: () => Promise<void>;
-}
-
-export const useSftpModalPermissions = ({
-  currentPath,
-  isLocalSession,
-  joinPath,
-  ensureSftp,
-  loadFiles,
-  chmodSftp,
-  statSftp,
-  t,
-}: UseSftpModalPermissionsParams): UseSftpModalPermissionsResult => {
-  const [showPermissionsDialog, setShowPermissionsDialog] = useState(false);
-  const [permissionsTarget, setPermissionsTarget] = useState<RemoteFile | null>(null);
-  const [permissions, setPermissions] = useState<PermissionsState>({
-    owner: { read: false, write: false, execute: false },
-    group: { read: false, write: false, execute: false },
-    others: { read: false, write: false, execute: false },
-  });
-  const [isChangingPermissions, setIsChangingPermissions] = useState(false);
-
-  const parsePermissions = useCallback((perms: string | undefined) => {
-    const defaultPerms = {
-      owner: { read: false, write: false, execute: false },
-      group: { read: false, write: false, execute: false },
-      others: { read: false, write: false, execute: false },
-    };
-    if (!perms) return defaultPerms;
-
-    if (/^[0-7]{3,4}$/.test(perms)) {
-      const octal = perms.length === 4 ? perms.slice(1) : perms;
-      const ownerBits = parseInt(octal[0], 10);
-      const groupBits = parseInt(octal[1], 10);
-      const othersBits = parseInt(octal[2], 10);
-      return {
-        owner: {
-          read: (ownerBits & 4) !== 0,
-          write: (ownerBits & 2) !== 0,
-          execute: (ownerBits & 1) !== 0,
-        },
-        group: {
-          read: (groupBits & 4) !== 0,
-          write: (groupBits & 2) !== 0,
-          execute: (groupBits & 1) !== 0,
-        },
-        others: {
-          read: (othersBits & 4) !== 0,
-          write: (othersBits & 2) !== 0,
-          execute: (othersBits & 1) !== 0,
-        },
-      };
-    }
-
-    const pStr = perms.length === 10 ? perms.slice(1) : perms;
-    if (pStr.length >= 9) {
-      return {
-        owner: {
-          read: pStr[0] === "r",
-          write: pStr[1] === "w",
-          execute: pStr[2] === "x" || pStr[2] === "s",
-        },
-        group: {
-          read: pStr[3] === "r",
-          write: pStr[4] === "w",
-          execute: pStr[5] === "x" || pStr[5] === "s",
-        },
-        others: {
-          read: pStr[6] === "r",
-          write: pStr[7] === "w",
-          execute: pStr[8] === "x" || pStr[8] === "t",
-        },
-      };
-    }
-    return defaultPerms;
-  }, []);
-
-  const openPermissionsDialog = useCallback(async (file: RemoteFile) => {
-    if (isLocalSession) {
-      toast.error("Permissions not available for local files", "SFTP");
-      return;
-    }
-    setPermissionsTarget(file);
-
-    let permsStr = file.permissions;
-    try {
-      const fullPath = joinPath(currentPath, file.name);
-      const stat = await statSftp(await ensureSftp(), fullPath);
-      if (stat.permissions) {
-        permsStr = stat.permissions;
-      }
-    } catch (e) {
-      console.warn("Failed to fetch file permissions:", e);
-    }
-
-    setPermissions(parsePermissions(permsStr));
-    setShowPermissionsDialog(true);
-  }, [currentPath, ensureSftp, isLocalSession, joinPath, parsePermissions, statSftp]);
-
-  const togglePermission = useCallback(
-    (role: "owner" | "group" | "others", perm: "read" | "write" | "execute") => {
-      setPermissions((prev) => ({
-        ...prev,
-        [role]: { ...prev[role], [perm]: !prev[role][perm] },
-      }));
-    },
-    [],
-  );
-
-  const getOctalPermissions = useCallback(() => {
-    const getNum = (p: { read: boolean; write: boolean; execute: boolean }) =>
-      (p.read ? 4 : 0) + (p.write ? 2 : 0) + (p.execute ? 1 : 0);
-    return `${getNum(permissions.owner)}${getNum(permissions.group)}${getNum(permissions.others)}`;
-  }, [permissions]);
-
-  const getSymbolicPermissions = useCallback(() => {
-    const getSym = (p: { read: boolean; write: boolean; execute: boolean }) =>
-      `${p.read ? "r" : "-"}${p.write ? "w" : "-"}${p.execute ? "x" : "-"}`;
-    return (
-      getSym(permissions.owner) +
-      getSym(permissions.group) +
-      getSym(permissions.others)
-    );
-  }, [permissions]);
-
-  const handleSavePermissions = useCallback(async () => {
-    if (!permissionsTarget || isChangingPermissions) return;
-    setIsChangingPermissions(true);
-    try {
-      const fullPath = joinPath(currentPath, permissionsTarget.name);
-      await chmodSftp(await ensureSftp(), fullPath, getOctalPermissions());
-      setShowPermissionsDialog(false);
-      setPermissionsTarget(null);
-      await loadFiles(currentPath, { force: true });
-      toast.success(t("sftp.permissions.success"), "SFTP");
-    } catch (e) {
-      toast.error(
-        e instanceof Error ? e.message : t("sftp.permissions.failed"),
-        "SFTP",
-      );
-    } finally {
-      setIsChangingPermissions(false);
-    }
-  }, [chmodSftp, currentPath, ensureSftp, getOctalPermissions, isChangingPermissions, joinPath, loadFiles, permissionsTarget, t]);
-
-  return {
-    showPermissionsDialog,
-    setShowPermissionsDialog,
-    permissionsTarget,
-    permissions,
-    isChangingPermissions,
-    openPermissionsDialog,
-    togglePermission,
-    getOctalPermissions,
-    getSymbolicPermissions,
-    handleSavePermissions,
-  };
-};

components/sftp-modal/hooks/useSftpModalRename.ts

@@ -1,85 +0,0 @@
-import { useCallback, useState } from "react";
-import type { RemoteFile } from "../../../types";
-import { toast } from "../../ui/toast";
-
-interface UseSftpModalRenameParams {
-  currentPath: string;
-  isLocalSession: boolean;
-  joinPath: (base: string, name: string) => string;
-  ensureSftp: () => Promise<string>;
-  loadFiles: (path: string, options?: { force?: boolean }) => Promise<void>;
-  renameSftp: (sftpId: string, oldPath: string, newPath: string) => Promise<void>;
-  t: (key: string, params?: Record<string, unknown>) => string;
-}
-
-interface UseSftpModalRenameResult {
-  showRenameDialog: boolean;
-  setShowRenameDialog: (open: boolean) => void;
-  renameTarget: RemoteFile | null;
-  renameName: string;
-  setRenameName: (value: string) => void;
-  isRenaming: boolean;
-  openRenameDialog: (file: RemoteFile) => void;
-  handleRename: () => Promise<void>;
-}
-
-export const useSftpModalRename = ({
-  currentPath,
-  isLocalSession,
-  joinPath,
-  ensureSftp,
-  loadFiles,
-  renameSftp,
-  t,
-}: UseSftpModalRenameParams): UseSftpModalRenameResult => {
-  const [showRenameDialog, setShowRenameDialog] = useState(false);
-  const [renameTarget, setRenameTarget] = useState<RemoteFile | null>(null);
-  const [renameName, setRenameName] = useState("");
-  const [isRenaming, setIsRenaming] = useState(false);
-
-  const openRenameDialog = useCallback((file: RemoteFile) => {
-    setRenameTarget(file);
-    setRenameName(file.name);
-    setShowRenameDialog(true);
-  }, []);
-
-  const handleRename = useCallback(async () => {
-    if (!renameTarget || !renameName.trim() || isRenaming) return;
-    if (renameName.trim() === renameTarget.name) {
-      setShowRenameDialog(false);
-      return;
-    }
-    setIsRenaming(true);
-    try {
-      const oldPath = joinPath(currentPath, renameTarget.name);
-      const newPath = joinPath(currentPath, renameName.trim());
-      if (isLocalSession) {
-        toast.error("Local rename not implemented", "SFTP");
-      } else {
-        await renameSftp(await ensureSftp(), oldPath, newPath);
-      }
-      setShowRenameDialog(false);
-      setRenameTarget(null);
-      setRenameName("");
-      await loadFiles(currentPath, { force: true });
-    } catch (e) {
-      toast.error(
-        e instanceof Error ? e.message : t("sftp.error.renameFailed"),
-        "SFTP",
-      );
-    } finally {
-      setIsRenaming(false);
-    }
-  }, [currentPath, ensureSftp, isLocalSession, joinPath, loadFiles, renameName, renameSftp, renameTarget, t, isRenaming]);
-
-  return {
-    showRenameDialog,
-    setShowRenameDialog,
-    renameTarget,
-    renameName,
-    setRenameName,
-    isRenaming,
-    openRenameDialog,
-    handleRename,
-  };
-};