Merge branch 'binaricat:main' into main

docs: add Netcatty feature todo list
Merge pull request #1 from AkarinServer/feature/linux-build-support
2026-01-09 22:03:02 +08:00 · 2026-01-09 22:02:34 +08:00 · 2026-01-08 23:22:16 +08:00
37 changed files with 1574 additions and 2660 deletions
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -1,8 +1,7 @@
 {
  "permissions": {
    "allow": [
-      "Bash(npx tsc:*)",
-      "Bash(npm run lint:*)"
+      "Bash(npx tsc:*)"
    ]
  }
 }
--- a/App.tsx
+++ b/App.tsx
@@ -20,7 +20,7 @@ import { Label } from './components/ui/label';
 import { ToastProvider, toast } from './components/ui/toast';
 import { VaultView, VaultSection } from './components/VaultView';
 import { cn } from './lib/utils';
-import { ConnectionLog, Host, HostProtocol, SerialConfig, TerminalTheme } from './types';
+import { ConnectionLog, Host, HostProtocol, 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';
@@ -619,25 +619,6 @@ function App({ settings }: { settings: SettingsState }) {
  // Wrapper to connect to host with logging
  const handleConnectToHost = useCallback((host: Host) => {
    const { username, hostname: localHost } = systemInfoRef.current;
-    
-    // Handle serial hosts separately
-    if (host.protocol === 'serial') {
-      const portName = host.hostname.split('/').pop() || host.hostname;
-      addConnectionLog({
-        hostId: host.id,
-        hostLabel: host.label || `Serial: ${portName}`,
-        hostname: host.hostname,
-        username: username,
-        protocol: 'serial',
-        startTime: Date.now(),
-        localUsername: username,
-        localHostname: localHost,
-        saved: false,
-      });
-      connectToHost(host);
-      return;
-    }
-    
    const protocol = host.moshEnabled ? 'mosh' : (host.protocol || 'ssh');
    const resolvedAuth = resolveHostAuth({ host, keys, identities });
    addConnectionLog({
@@ -654,24 +635,6 @@ function App({ settings }: { settings: SettingsState }) {
    connectToHost(host);
  }, [addConnectionLog, connectToHost, identities, keys]);

-  // Wrapper to create serial session with logging
-  const handleConnectSerial = useCallback((config: SerialConfig) => {
-    const { username, hostname } = systemInfoRef.current;
-    const portName = config.path.split('/').pop() || config.path;
-    addConnectionLog({
-      hostId: '',
-      hostLabel: `Serial: ${portName}`,
-      hostname: config.path,
-      username: username,
-      protocol: 'serial',
-      startTime: Date.now(),
-      localUsername: username,
-      localHostname: hostname,
-      saved: false,
-    });
-    createSerialSession(config);
-  }, [addConnectionLog, createSerialSession]);
-
  // Handle terminal data capture when session exits
  const handleTerminalDataCapture = useCallback((sessionId: string, data: string) => {
    if (IS_DEV) console.log('[handleTerminalDataCapture] Called', { sessionId, dataLength: data.length });
@@ -813,7 +776,7 @@ function App({ settings }: { settings: SettingsState }) {
            onOpenSettings={handleOpenSettings}
            onOpenQuickSwitcher={handleOpenQuickSwitcher}
            onCreateLocalTerminal={handleCreateLocalTerminal}
-            onConnectSerial={handleConnectSerial}
+            onConnectSerial={createSerialSession}
            onDeleteHost={handleDeleteHost}
            onConnect={handleConnectToHost}
            onUpdateHosts={updateHosts}
--- a/application/i18n/locales/en.ts
+++ b/application/i18n/locales/en.ts
@@ -525,7 +525,7 @@ const en: Messages = {
  'settings.sftpFileAssociations.noAssociations': 'No file associations configured',
  'settings.sftpFileAssociations.remove': 'Remove',
  'settings.sftpFileAssociations.removeConfirm': 'Remove association for .{ext}?',
-
+  
  // Settings > SFTP Behavior
  'settings.sftp.doubleClickBehavior': 'Double-click behavior',
  'settings.sftp.doubleClickBehavior.desc': 'Choose the action when double-clicking a file in SFTP View',
@@ -533,7 +533,7 @@ const en: Messages = {
  'settings.sftp.doubleClickBehavior.transfer': 'Transfer to other pane',
  'settings.sftp.doubleClickBehavior.openDesc': 'Open the file in the default application',
  'settings.sftp.doubleClickBehavior.transferDesc': 'Transfer the file to the other pane\'s active host',
-
+  
  // Settings > SFTP Auto Sync
  'settings.sftp.autoSync': 'Auto-sync to remote',
  'settings.sftp.autoSync.desc': 'Automatically sync file changes back to the remote server when opening files with external applications',
@@ -542,18 +542,6 @@ const en: Messages = {
  'sftp.autoSync.success': 'File synced to remote: {fileName}',
  'sftp.autoSync.error': 'Failed to sync file: {error}',

-  // SFTP Reconnecting
-  'sftp.reconnecting.title': 'Reconnecting...',
-  'sftp.reconnecting.desc': 'Connection lost, attempting to reconnect',
-  'sftp.reconnected': 'Connection restored',
-  'sftp.error.reconnectFailed': 'Failed to reconnect. Please try again.',
-
-  // Settings > SFTP Show Hidden Files
-  'settings.sftp.showHiddenFiles': 'Show hidden files',
-  'settings.sftp.showHiddenFiles.desc': 'Display files with the Windows hidden attribute in the SFTP file browser when browsing local Windows filesystem.',
-  'settings.sftp.showHiddenFiles.enable': 'Show hidden files',
-  'settings.sftp.showHiddenFiles.enableDesc': 'Display Windows hidden files when browsing local filesystem',
-
  // Quick Switcher
  'qs.search.placeholder': 'Search hosts or tabs',
  'qs.recentConnections': 'Recent connections',
@@ -660,12 +648,6 @@ const en: Messages = {
  'hostDetails.telnet.password': 'Telnet Password',
  'hostDetails.charset.placeholder': 'Charset (e.g. UTF-8)',
  'hostDetails.telnet.add': 'Add Telnet Protocol',
-  'hostDetails.tags': 'Tags',
-  'hostDetails.group': 'Group',
-  'hostDetails.selectGroup': 'Select Group',
-  'hostDetails.addTag': 'Add a tag...',
-  'hostDetails.createTag': 'Create tag',
-  'hostDetails.createGroup': 'Create group',

  // Host form (legacy modal)
  'hostForm.title.edit': 'Edit Host',
@@ -1079,12 +1061,11 @@ const en: Messages = {
  'serial.field.baudRate': 'Baud Rate',
  'serial.field.dataBits': 'Data Bits',
  'serial.field.stopBits': 'Stop Bits',
-  'serial.field.stopBits15Warning': '1.5 stop bits may not be supported on all Windows devices',
  'serial.field.parity': 'Parity',
  'serial.field.flowControl': 'Flow Control',
  'serial.noPorts': 'No serial ports detected. Connect a device and refresh.',
  'serial.field.customPort': 'Custom Port Path',
-  'serial.field.customPortPlaceholder': 'e.g. /dev/ttys001 or COM1',
+  'serial.field.customPortPlaceholder': 'e.g. /dev/ttys001',
  'serial.type.hardware': 'Hardware',
  'serial.type.pseudo': 'Pseudo Terminal',
  'serial.type.custom': 'Custom',
@@ -1101,15 +1082,6 @@ const en: Messages = {
  'serial.field.lineMode': 'Line Mode',
  'serial.field.lineModeDesc': 'Buffer input and send on Enter (instead of character-by-character)',
  'serial.connectionError': 'Failed to connect to serial port',
-  'serial.field.baudRatePlaceholder': 'Select or enter baud rate...',
-  'serial.field.baudRateEmpty': 'Enter a custom baud rate',
-  'serial.field.customBaudRate': 'Using custom baud rate',
-  'serial.field.saveConfig': 'Save Configuration',
-  'serial.field.saveConfigDesc': 'Save this serial configuration to hosts for quick access',
-  'serial.field.configLabel': 'Configuration Name',
-  'serial.field.configLabelPlaceholder': 'e.g. Arduino Uno',
-  'serial.connectAndSave': 'Connect & Save',
-  'serial.edit.title': 'Serial Port Settings',
 };

 export default en;
--- a/application/i18n/locales/zh-CN.ts
+++ b/application/i18n/locales/zh-CN.ts
@@ -401,12 +401,6 @@ const zhCN: Messages = {
  'hostDetails.telnet.password': 'Telnet 密码',
  'hostDetails.charset.placeholder': '字符集（例如 UTF-8）',
  'hostDetails.telnet.add': '添加 Telnet 协议',
-  'hostDetails.tags': '标签',
-  'hostDetails.group': '分组',
-  'hostDetails.selectGroup': '选择分组',
-  'hostDetails.addTag': '添加标签...',
-  'hostDetails.createTag': '创建标签',
-  'hostDetails.createGroup': '创建分组',

  // Host form (legacy modal)
  'hostForm.title.edit': '编辑主机',
@@ -763,7 +757,7 @@ const zhCN: Messages = {
  'settings.sftpFileAssociations.noAssociations': '未配置文件关联',
  'settings.sftpFileAssociations.remove': '移除',
  'settings.sftpFileAssociations.removeConfirm': '确定移除 .{ext} 的关联吗？',
-
+  
  // Settings > SFTP Behavior
  'settings.sftp.doubleClickBehavior': '双击行为',
  'settings.sftp.doubleClickBehavior.desc': '选择在 SFTP 视图中双击文件时的操作',
@@ -771,7 +765,7 @@ const zhCN: Messages = {
  'settings.sftp.doubleClickBehavior.transfer': '传输到另一侧',
  'settings.sftp.doubleClickBehavior.openDesc': '使用默认应用程序打开文件',
  'settings.sftp.doubleClickBehavior.transferDesc': '将文件传输到另一窗格的活动主机',
-
+  
  // Settings > SFTP Auto Sync
  'settings.sftp.autoSync': '自动同步到远程',
  'settings.sftp.autoSync.desc': '使用外部应用程序打开文件时，自动将文件更改同步回远程服务器',
@@ -780,18 +774,6 @@ const zhCN: Messages = {
  'sftp.autoSync.success': '文件已同步到远程：{fileName}',
  'sftp.autoSync.error': '同步文件失败：{error}',

-  // SFTP Reconnecting
-  'sftp.reconnecting.title': '正在重连...',
-  'sftp.reconnecting.desc': '连接已断开，正在尝试重新连接',
-  'sftp.reconnected': '连接已恢复',
-  'sftp.error.reconnectFailed': '重连失败，请重试。',
-
-  // Settings > SFTP Show Hidden Files
-  'settings.sftp.showHiddenFiles': '显示隐藏文件',
-  'settings.sftp.showHiddenFiles.desc': '在浏览本地 Windows 文件系统时，显示具有 Windows 隐藏属性的文件。',
-  'settings.sftp.showHiddenFiles.enable': '显示隐藏文件',
-  'settings.sftp.showHiddenFiles.enableDesc': '浏览本地文件系统时显示 Windows 隐藏文件',
-
  // Settings > Terminal
  'settings.terminal.section.theme': '终端主题',
  'settings.terminal.themeModal.title': '选择主题',
@@ -1068,12 +1050,11 @@ const zhCN: Messages = {
  'serial.field.baudRate': '波特率',
  'serial.field.dataBits': '数据位',
  'serial.field.stopBits': '停止位',
-  'serial.field.stopBits15Warning': '1.5 停止位在 Windows 下可能不被所有设备支持',
  'serial.field.parity': '校验位',
  'serial.field.flowControl': '流控制',
  'serial.noPorts': '未检测到串口设备。请连接设备后刷新。',
  'serial.field.customPort': '自定义串口路径',
-  'serial.field.customPortPlaceholder': '例如 /dev/ttys001 或 COM1',
+  'serial.field.customPortPlaceholder': '例如 /dev/ttys001',
  'serial.type.hardware': '硬件',
  'serial.type.pseudo': '虚拟终端',
  'serial.type.custom': '自定义',
@@ -1090,15 +1071,6 @@ const zhCN: Messages = {
  '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.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',
-  'serial.field.customBaudRate': '使用自定义波特率',
-  'serial.field.saveConfig': '保存配置',
-  'serial.field.saveConfigDesc': '将此串口配置保存到主机列表以便快速访问',
-  'serial.field.configLabel': '配置名称',
-  'serial.field.configLabelPlaceholder': '例如 Arduino Uno',
-  'serial.connectAndSave': '连接并保存',
-  'serial.edit.title': '串口设置',
 };

 export default zhCN;
--- a/application/state/useSessionState.ts
+++ b/application/state/useSessionState.ts
@@ -72,37 +72,6 @@ export const useSessionState = () => {
  }, [setActiveTabId]);

  const connectToHost = useCallback((host: Host) => {
-    // Handle serial hosts specially - use createSerialSession for them
-    if (host.protocol === 'serial') {
-      // Use stored serialConfig or construct from host data
-      const serialConfig: SerialConfig = host.serialConfig || {
-        path: host.hostname,
-        baudRate: host.port || 115200,
-        dataBits: 8,
-        stopBits: 1,
-        parity: 'none',
-        flowControl: 'none',
-        localEcho: false,
-        lineMode: false,
-      };
-      
-      const sessionId = crypto.randomUUID();
-      const portName = serialConfig.path.split('/').pop() || serialConfig.path;
-      const newSession: TerminalSession = {
-        id: sessionId,
-        hostId: host.id,
-        hostLabel: host.label || `Serial: ${portName}`,
-        hostname: serialConfig.path,
-        username: '',
-        status: 'connecting',
-        protocol: 'serial',
-        serialConfig: serialConfig,
-      };
-      setSessions(prev => [...prev, newSession]);
-      setActiveTabId(sessionId);
-      return;
-    }
-
    const newSession: TerminalSession = {
      id: crypto.randomUUID(),
      hostId: host.id,
--- a/application/state/useSettingsState.ts
+++ b/application/state/useSettingsState.ts
@@ -18,7 +18,6 @@ STORAGE_KEY_UI_THEME_LIGHT,
 STORAGE_KEY_UI_THEME_DARK,
 STORAGE_KEY_SFTP_DOUBLE_CLICK_BEHAVIOR,
 STORAGE_KEY_SFTP_AUTO_SYNC,
-STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES,
 } from '../../infrastructure/config/storageKeys';
 import { DEFAULT_UI_LOCALE, resolveSupportedLocale } from '../../infrastructure/config/i18n';
 import { TERMINAL_THEMES } from '../../infrastructure/config/terminalThemes';
@@ -42,7 +41,6 @@ const DEFAULT_HOTKEY_SCHEME: HotkeyScheme =
    : 'pc';
 const DEFAULT_SFTP_DOUBLE_CLICK_BEHAVIOR: 'open' | 'transfer' = 'open';
 const DEFAULT_SFTP_AUTO_SYNC = false;
-const DEFAULT_SFTP_SHOW_HIDDEN_FILES = false;

 const readStoredString = (key: string): string | null => {
  const raw = localStorageAdapter.readString(key);
@@ -169,10 +167,6 @@ export const useSettingsState = () => {
    const stored = readStoredString(STORAGE_KEY_SFTP_AUTO_SYNC);
    return stored === 'true' ? true : DEFAULT_SFTP_AUTO_SYNC;
  });
-  const [sftpShowHiddenFiles, setSftpShowHiddenFiles] = useState<boolean>(() => {
-    const stored = readStoredString(STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES);
-    return stored === 'true' ? true : DEFAULT_SFTP_SHOW_HIDDEN_FILES;
-  });

  // Helper to notify other windows about settings changes via IPC
  const notifySettingsChanged = useCallback((key: string, value: unknown) => {
@@ -404,18 +398,11 @@ export const useSettingsState = () => {
          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) {
-          setSftpShowHiddenFiles(newValue);
-        }
-      }
    };

    window.addEventListener('storage', handleStorageChange);
    return () => window.removeEventListener('storage', handleStorageChange);
-  }, [theme, lightUiThemeId, darkUiThemeId, accentMode, customAccent, customCSS, hotkeyScheme, uiLanguage, terminalThemeId, terminalFontFamilyId, terminalFontSize, sftpDoubleClickBehavior, sftpAutoSync, sftpShowHiddenFiles]);
+  }, [theme, lightUiThemeId, darkUiThemeId, accentMode, customAccent, customCSS, hotkeyScheme, uiLanguage, terminalThemeId, terminalFontFamilyId, terminalFontSize, sftpDoubleClickBehavior, sftpAutoSync]);

  useEffect(() => {
    localStorageAdapter.writeString(STORAGE_KEY_TERM_THEME, terminalThemeId);
@@ -478,12 +465,6 @@ export const useSettingsState = () => {
    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');
-    notifySettingsChanged(STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES, sftpShowHiddenFiles);
-  }, [sftpShowHiddenFiles, notifySettingsChanged]);
-
  // Get merged key bindings (defaults + custom overrides)
  const keyBindings = useMemo((): KeyBinding[] => {
    return DEFAULT_KEY_BINDINGS.map(binding => {
@@ -594,8 +575,6 @@ export const useSettingsState = () => {
    setSftpDoubleClickBehavior,
    sftpAutoSync,
    setSftpAutoSync,
-    sftpShowHiddenFiles,
-    setSftpShowHiddenFiles,
    availableFonts,
  };
 };
--- a/application/state/useSftpState.ts
+++ b/application/state/useSftpState.ts
@@ -676,7 +676,6 @@ export const useSftpState = (
          lastModified: new Date(f.lastModified).getTime(),
          lastModifiedFormatted: f.lastModified,
          linkTarget: f.linkTarget as "file" | "directory" | null | undefined,
-          hidden: f.hidden, // Windows hidden attribute
        };
      });
    },
@@ -2725,89 +2724,6 @@ export const useSftpState = (
    [getActivePane],
  );

-  // Upload external files dropped from OS
-  const uploadExternalFiles = useCallback(
-    async (side: "left" | "right", files: FileList) => {
-      const pane = getActivePane(side);
-      if (!pane?.connection) {
-        throw new Error("No active connection");
-      }
-
-      const bridge = netcattyBridge.get();
-      if (!bridge) {
-        throw new Error("Bridge not available");
-      }
-
-      const results: { fileName: string; success: boolean; error?: string }[] = [];
-
-      for (const file of Array.from(files)) {
-        const targetPath = joinPath(pane.connection.currentPath, file.name);
-        
-        try {
-          const arrayBuffer = await file.arrayBuffer();
-          
-          if (pane.connection.isLocal) {
-            // Upload to local filesystem
-            if (!bridge.writeLocalFile) {
-              throw new Error("writeLocalFile not available");
-            }
-            await bridge.writeLocalFile(targetPath, arrayBuffer);
-          } else {
-            // Upload to remote via SFTP
-            const sftpId = sftpSessionsRef.current.get(pane.connection.id);
-            if (!sftpId) {
-              throw new Error("SFTP session not found");
-            }
-            
-            // Try progress API first, fallback to basic binary write
-            if (bridge.writeSftpBinaryWithProgress) {
-              const result = await bridge.writeSftpBinaryWithProgress(
-                sftpId,
-                targetPath,
-                arrayBuffer,
-                crypto.randomUUID(),
-                // Progress callbacks not needed for simple drag-drop upload
-                undefined, // onProgress
-                undefined, // onComplete
-                undefined, // onError
-              );
-              
-              // Check if progress API explicitly reported failure
-              // If result is undefined/null or success is false, fallback to basic API
-              if (!result || result.success === false) {
-                if (bridge.writeSftpBinary) {
-                  await bridge.writeSftpBinary(sftpId, targetPath, arrayBuffer);
-                } else {
-                  throw new Error("Upload failed and no fallback method available");
-                }
-              }
-            } else if (bridge.writeSftpBinary) {
-              // Progress API not available, use basic API
-              await bridge.writeSftpBinary(sftpId, targetPath, arrayBuffer);
-            } else {
-              throw new Error("No SFTP write method available");
-            }
-          }
-          
-          results.push({ fileName: file.name, success: true });
-        } catch (error) {
-          logger.error(`Failed to upload ${file.name}:`, error);
-          results.push({
-            fileName: file.name,
-            success: false,
-            error: error instanceof Error ? error.message : String(error),
-          });
-        }
-      }
-      
-      // Refresh the file list to show new files
-      await refresh(side);
-      
-      return results;
-    },
-    [getActivePane, refresh],
-  );
-
  // Select an application from system file picker
  const selectApplication = useCallback(
    async (): Promise<{ path: string; name: string } | null> => {
@@ -2851,7 +2767,6 @@ export const useSftpState = (
    readBinaryFile,
    writeTextFile,
    downloadToTempAndOpen,
-    uploadExternalFiles,
    selectApplication,
    startTransfer,
    cancelTransfer,
@@ -2889,7 +2804,6 @@ export const useSftpState = (
    readBinaryFile,
    writeTextFile,
    downloadToTempAndOpen,
-    uploadExternalFiles,
    selectApplication,
    startTransfer,
    cancelTransfer,
@@ -2930,7 +2844,6 @@ export const useSftpState = (
    readBinaryFile: (...args: Parameters<typeof readBinaryFile>) => methodsRef.current.readBinaryFile(...args),
    writeTextFile: (...args: Parameters<typeof writeTextFile>) => methodsRef.current.writeTextFile(...args),
    downloadToTempAndOpen: (...args: Parameters<typeof downloadToTempAndOpen>) => methodsRef.current.downloadToTempAndOpen(...args),
-    uploadExternalFiles: (...args: Parameters<typeof uploadExternalFiles>) => methodsRef.current.uploadExternalFiles(...args),
    selectApplication: () => methodsRef.current.selectApplication(),
    startTransfer: (...args: Parameters<typeof startTransfer>) => methodsRef.current.startTransfer(...args),
    cancelTransfer: (...args: Parameters<typeof cancelTransfer>) => methodsRef.current.cancelTransfer(...args),
--- a/components/ConnectionLogsManager.tsx
+++ b/components/ConnectionLogsManager.tsx
@@ -4,7 +4,6 @@ import {
    Server,
    Terminal,
    Trash2,
-    Usb,
    User,
 } from "lucide-react";
 import React, { memo, useCallback, useMemo } from "react";
@@ -64,7 +63,6 @@ interface LogItemProps {
 const LogItem = memo<LogItemProps>(({ log, onToggleSaved, onDelete, onClick }) => {
    const { t, resolvedLocale } = useI18n();
    const isLocal = log.protocol === "local" || log.hostname === "localhost";
-    const isSerial = log.protocol === "serial";

    return (
        <div
@@ -94,14 +92,14 @@ const LogItem = memo<LogItemProps>(({ log, onToggleSaved, onDelete, onClick }) =
            <div className="flex items-center gap-2 flex-1 min-w-0">
                <div className={cn(
                    "h-8 w-8 rounded-lg flex items-center justify-center shrink-0",
-                    isSerial ? "bg-amber-500/10 text-amber-500" : isLocal ? "bg-emerald-500/10 text-emerald-500" : "bg-blue-500/10 text-blue-500"
+                    isLocal ? "bg-emerald-500/10 text-emerald-500" : "bg-blue-500/10 text-blue-500"
                )}>
-                    {isSerial ? <Usb size={14} /> : isLocal ? <Terminal size={14} /> : <Server size={14} />}
+                    {isLocal ? <Terminal size={14} /> : <Server size={14} />}
                </div>
                <div className="min-w-0">
                    <div className="text-sm font-medium truncate">{isLocal ? t("logs.localTerminal") : log.hostLabel}</div>
                    <div className="text-xs text-muted-foreground truncate">
-                        {isLocal ? "local" : isSerial ? `serial, ${log.hostname}` : `${log.protocol}, ${log.username}`}
+                        {isLocal ? "local" : `${log.protocol}, ${log.username}`}
                    </div>
                </div>
            </div>
--- a/components/DistroAvatar.tsx
+++ b/components/DistroAvatar.tsx
@@ -1,4 +1,4 @@
-import { Server, Usb } from "lucide-react";
+import { Server } from "lucide-react";
 import React, { memo } from "react";
 import { normalizeDistroId } from "../domain/host";
 import { cn } from "../lib/utils";
@@ -69,21 +69,6 @@ const DistroAvatarInner: React.FC<DistroAvatarProps> = ({
  const containerClass = sizeClasses[size];
  const iconSize = iconSizes[size];

-  // Show USB icon for serial hosts
-  if (host.protocol === 'serial') {
-    return (
-      <div
-        className={cn(
-          containerClass,
-          "flex items-center justify-center bg-amber-500/15 text-amber-500",
-          className,
-        )}
-      >
-        <Usb className={iconSize} />
-      </div>
-    );
-  }
-
  if (logo && !errored) {
    return (
      <div
--- a/components/HostDetailsPanel.tsx
+++ b/components/HostDetailsPanel.tsx
@@ -522,16 +522,12 @@ const HostDetailsPanel: React.FC<HostDetailsPanelProps> = ({
            <Combobox
              options={groupOptions}
              value={form.group || ""}
-              onValueChange={(val) => {
-                update("group", val);
-                setGroupInputValue(val);
-              }}
+              onValueChange={(val) => update("group", val)}
              placeholder={t("hostDetails.group.placeholder")}
              allowCreate={true}
              onCreateNew={(val) => {
                onCreateGroup?.(val);
                update("group", val);
-                setGroupInputValue(val);
              }}
              createText="Create Group"
              triggerClassName="flex-1 h-10"
--- a/components/SFTPModal.tsx
+++ b/components/SFTPModal.tsx
@@ -48,7 +48,6 @@ import { logger } from "../lib/logger";
 import { getFileExtension, isKnownBinaryFile, FileOpenerType, SystemAppInfo } from "../lib/sftpFileUtils";
 import { cn } from "../lib/utils";
 import { Host, RemoteFile } from "../types";
-import { filterHiddenFiles } from "./sftp";
 import { DistroAvatar } from "./DistroAvatar";
 import FileOpenerDialog from "./FileOpenerDialog";
 import TextEditorModal from "./TextEditorModal";
@@ -257,8 +256,6 @@ interface SFTPModalProps {
  };
  open: boolean;
  onClose: () => void;
-  /** Initial path to open in SFTP. If not accessible, falls back to home directory. */
-  initialPath?: string;
 }

 // Sort configuration
@@ -283,7 +280,6 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
  credentials,
  open,
  onClose,
-  initialPath,
 }) => {
  const {
    openSftp,
@@ -308,7 +304,7 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
    downloadSftpToTempAndOpen,
  } = useSftpBackend();
  const { t, resolvedLocale } = useI18n();
-  const { sftpAutoSync, sftpShowHiddenFiles } = useSettingsState();
+  const { sftpAutoSync } = useSettingsState();
  const isLocalSession = host.protocol === "local";
  const [currentPath, setCurrentPath] = useState("/");
  const [files, setFiles] = useState<RemoteFile[]>([]);
@@ -320,17 +316,10 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
  const inputRef = useRef<HTMLInputElement>(null);
  const sftpIdRef = useRef<string | null>(null);
  const initializedRef = useRef(false);
-  const lastInitialPathRef = useRef<string | undefined>(undefined);
  const navigatingRef = useRef(false);
  const lastSelectedIndexRef = useRef<number | null>(null);
  const localHomeRef = useRef<string | null>(null);

-  // Reconnect state
-  const [reconnecting, setReconnecting] = useState(false);
-  const reconnectingRef = useRef(false);
-  const reconnectAttemptsRef = useRef(0);
-  const MAX_RECONNECT_ATTEMPTS = 3;
-
  // Rename dialog state
  const [showRenameDialog, setShowRenameDialog] = useState(false);
  const [renameTarget, setRenameTarget] = useState<RemoteFile | null>(null);
@@ -542,40 +531,6 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
    openSftp,
  ]);

-  // Check if an error indicates a stale/lost SFTP session
-  const isSessionError = useCallback((err: unknown): boolean => {
-    if (!(err instanceof Error)) return false;
-    const msg = err.message.toLowerCase();
-    return (
-      msg.includes("session not found") ||
-      msg.includes("sftp session") ||
-      msg.includes("not found") ||
-      msg.includes("closed") ||
-      msg.includes("connection reset") ||
-      msg.includes("eof")
-    );
-  }, []);
-
-  // Handle session error - triggers auto-reconnect
-  const handleSessionError = useCallback(() => {
-    if (reconnectingRef.current) return; // Prevent duplicate reconnect attempts
-
-    if (reconnectAttemptsRef.current >= MAX_RECONNECT_ATTEMPTS) {
-      toast.error(t("sftp.error.reconnectFailed"), "SFTP");
-      setReconnecting(false);
-      reconnectingRef.current = false;
-      return;
-    }
-
-    // Clear stale session reference
-    sftpIdRef.current = null;
-
-    // Set reconnecting state
-    reconnectingRef.current = true;
-    reconnectAttemptsRef.current++;
-    setReconnecting(true);
-  }, [t]);
-
  const loadFiles = useCallback(
    async (path: string, options?: { force?: boolean }) => {
      const requestId = ++loadSeqRef.current;
@@ -609,14 +564,6 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
        setSelectedFiles(new Set());
      } catch (e) {
        if (loadSeqRef.current !== requestId) return;
-
-        // Check if this is a session error that can trigger auto-reconnect
-        if (!isLocalSession && isSessionError(e) && files.length > 0) {
-          logger.info("[SFTP] Session lost, attempting to reconnect...");
-          handleSessionError();
-          return;
-        }
-
        logger.error("Failed to load files", e);
        toast.error(
          e instanceof Error ? e.message : t("sftp.error.loadFailed"),
@@ -629,7 +576,7 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
        }
      }
    },
-    [ensureSftp, host.id, isLocalSession, listLocalDir, listSftp, t, isSessionError, handleSessionError, files.length],
+    [ensureSftp, host.id, isLocalSession, listLocalDir, listSftp, t],
  );

  useLayoutEffect(() => {
@@ -663,79 +610,10 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
    };
  }, [closeSftpSession]);

-  // Auto-reconnect effect
-  useEffect(() => {
-    if (!reconnecting || !reconnectingRef.current || isLocalSession) return;
-
-    const attemptReconnect = async () => {
-      // Small delay before reconnecting
-      await new Promise((resolve) => setTimeout(resolve, 1000));
-
-      if (!reconnectingRef.current) return; // May have been cancelled
-
-      try {
-        // Re-establish SFTP connection
-        const sftpId = await openSftp({
-          sessionId: `sftp-modal-${host.id}`,
-          hostname: credentials.hostname,
-          username: credentials.username || "root",
-          port: credentials.port || 22,
-          password: credentials.password,
-          privateKey: credentials.privateKey,
-          certificate: credentials.certificate,
-          passphrase: credentials.passphrase,
-          publicKey: credentials.publicKey,
-          keyId: credentials.keyId,
-          keySource: credentials.keySource,
-          proxy: credentials.proxy,
-          jumpHosts: credentials.jumpHosts,
-        });
-        sftpIdRef.current = sftpId;
-
-        // Refresh current directory
-        const list = await listSftp(sftpId, currentPath);
-        dirCacheRef.current.set(`${host.id}::${currentPath}`, {
-          files: list,
-          timestamp: Date.now(),
-        });
-        setFiles(list);
-        setSelectedFiles(new Set());
-
-        // Reconnect successful
-        reconnectingRef.current = false;
-        reconnectAttemptsRef.current = 0;
-        setReconnecting(false);
-        toast.success(t("sftp.reconnected"), "SFTP");
-      } catch (e) {
-        logger.error("[SFTP] Reconnect failed", e);
-        // Check if we can retry
-        if (reconnectAttemptsRef.current < MAX_RECONNECT_ATTEMPTS) {
-          // Trigger another attempt
-          sftpIdRef.current = null;
-          reconnectingRef.current = false; // Reset to allow handleSessionError to work
-          handleSessionError();
-        } else {
-          // Max retries reached
-          reconnectingRef.current = false;
-          setReconnecting(false);
-          toast.error(t("sftp.error.reconnectFailed"), "SFTP");
-        }
-      } finally {
-        setLoading(false);
-      }
-    };
-
-    attemptReconnect();
-  }, [reconnecting, isLocalSession, host.id, credentials, openSftp, listSftp, currentPath, t, handleSessionError]);
-
  useEffect(() => {
    if (open) {
-      // Check if we need to reinitialize (either first time or initialPath changed)
-      const needsReinit = !initializedRef.current || initialPath !== lastInitialPathRef.current;
-
-      if (needsReinit) {
+      if (!initializedRef.current) {
        initializedRef.current = true;
-        lastInitialPathRef.current = initialPath;
        if (isLocalSession) {
          void (async () => {
            let home = localHomeRef.current;
@@ -750,7 +628,7 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
            loadFiles(startPath);
          })();
        } else {
-          // For remote sessions, try initialPath first, then fall back to home directory
+          // For remote sessions, load home directory directly
          void (async () => {
            const username = credentials.username || 'root';
            // Root user's home is /root, other users' home is /home/username
@@ -759,26 +637,6 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
            // Set loading state immediately for better UX
            setLoading(true);

-            // If initialPath is provided, try to use it first
-            if (initialPath) {
-              try {
-                const sftpId = await ensureSftp();
-                const list = await listSftp(sftpId, initialPath);
-                setCurrentPath(initialPath);
-                setFiles(list);
-                setSelectedFiles(new Set());
-                dirCacheRef.current.set(`${host.id}::${initialPath}`, {
-                  files: list,
-                  timestamp: Date.now(),
-                });
-                setLoading(false);
-                return; // Successfully opened at initialPath
-              } catch {
-                // initialPath not accessible, fall back to home directory
-                logger.warn(`[SFTP] Initial path ${initialPath} not accessible, falling back to home`);
-              }
-            }
-
            try {
              const sftpId = await ensureSftp();
              const list = await listSftp(sftpId, homePath);
@@ -821,7 +679,7 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
      void closeSftpSession();
      initializedRef.current = false;
    }
-  }, [open, currentPath, loadFiles, closeSftpSession, getHomeDir, isLocalSession, credentials.username, ensureSftp, listSftp, host.id, t, initialPath]);
+  }, [open, currentPath, loadFiles, closeSftpSession, getHomeDir, isLocalSession, credentials.username, ensureSftp, listSftp, host.id, t]);

  const handleNavigate = useCallback((path: string) => {
    // Prevent double navigation (e.g., from double-click race condition)
@@ -1405,12 +1263,9 @@ const SFTPModal: React.FC<SFTPModalProps> = ({

  // 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 = isRootPath(currentPath);
-    if (atRoot) return visibleFiles;
+    if (atRoot) return files;

    // Add ".." parent directory entry at the top (only if not at root)
    const parentEntry: RemoteFile = {
@@ -1419,8 +1274,8 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
      size: "--",
      lastModified: undefined,
    };
-    return [parentEntry, ...visibleFiles.filter((f) => f.name !== "..")];
-  }, [files, currentPath, isRootPath, sftpShowHiddenFiles]);
+    return [parentEntry, ...files.filter((f) => f.name !== "..")];
+  }, [files, currentPath, isRootPath]);

  // Sorted files
  const sortedFiles = useMemo(() => {
@@ -1816,7 +1671,7 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
            className="h-7 w-7"
            onClick={() => loadFiles(currentPath, { force: true })}
          >
-            <RefreshCw size={14} className={cn((loading || reconnecting) && "animate-spin")} />
+            <RefreshCw size={14} className={cn(loading && "animate-spin")} />
          </Button>

          {/* Editable Breadcrumbs */}
@@ -2010,19 +1865,6 @@ const SFTPModal: React.FC<SFTPModalProps> = ({
            </div>
          )}

-          {/* Reconnecting overlay */}
-          {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>
-          )}
-
          {files.length === 0 && !loading && (
            <div className="flex flex-col items-center justify-center h-full text-muted-foreground">
              <Folder size={48} className="mb-3 opacity-50" />
--- a/components/SerialConnectModal.tsx
+++ b/components/SerialConnectModal.tsx
@@ -2,11 +2,11 @@
 * Serial Port Connect Modal
 * Allows users to configure and connect to a serial port
 */
-import { ChevronDown, ChevronUp, Cpu, RefreshCw, Save, Usb } from 'lucide-react';
+import { ChevronDown, ChevronUp, Cpu, RefreshCw, Usb } from 'lucide-react';
 import React, { useCallback, useEffect, useMemo, useState } from 'react';
 import { useI18n } from '../application/i18n/I18nProvider';
 import { useTerminalBackend } from '../application/state/useTerminalBackend';
-import type { Host, SerialConfig, SerialFlowControl, SerialParity } from '../domain/models';
+import type { SerialConfig, SerialFlowControl, SerialParity } from '../domain/models';
 import { cn } from '../lib/utils';
 import { Button } from './ui/button';
 import { Combobox, type ComboboxOption } from './ui/combobox';
@@ -18,7 +18,6 @@ import {
  DialogHeader,
  DialogTitle,
 } from './ui/dialog';
-import { Input } from './ui/input';
 import { Label } from './ui/label';
 import { Collapsible, CollapsibleContent, CollapsibleTrigger } from './ui/collapsible';

@@ -36,7 +35,6 @@ interface SerialConnectModalProps {
  open: boolean;
  onClose: () => void;
  onConnect: (config: SerialConfig) => void;
-  onSaveHost?: (host: Host) => void;
 }

 const BAUD_RATES = [300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600];
@@ -49,7 +47,6 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
  open,
  onClose,
  onConnect,
-  onSaveHost,
 }) => {
  const { t } = useI18n();
  const [ports, setPorts] = useState<SerialPort[]>([]);
@@ -66,10 +63,6 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
  const [localEcho, setLocalEcho] = useState(false);
  const [lineMode, setLineMode] = useState(false);

-  // Save configuration state
-  const [saveConfig, setSaveConfig] = useState(false);
-  const [configLabel, setConfigLabel] = useState('');
-
  const terminalBackend = useTerminalBackend();

  const loadPorts = useCallback(async () => {
@@ -94,14 +87,6 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
    }
  }, [open]); // eslint-disable-line react-hooks/exhaustive-deps

-  // Generate a default label when port is selected
-  useEffect(() => {
-    if (selectedPort && !configLabel) {
-      const portName = selectedPort.split('/').pop() || selectedPort;
-      setConfigLabel(`Serial: ${portName}`);
-    }
-  }, [selectedPort, configLabel]);
-
  const handleConnect = () => {
    if (!selectedPort) return;

@@ -116,26 +101,6 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
      lineMode,
    };

-    // Save as host if checkbox is checked and onSaveHost is provided
-    if (saveConfig && onSaveHost) {
-      const portName = selectedPort.split('/').pop() || selectedPort;
-      const host: Host = {
-        id: `serial-${Date.now()}-${Math.random().toString(36).substring(2, 11)}`,
-        label: configLabel.trim() || `Serial: ${portName}`,
-        hostname: selectedPort,
-        // For serial hosts, port field stores baud rate as a numeric identifier.
-        // The full configuration is stored in serialConfig for actual connection.
-        port: baudRate,
-        username: '',
-        os: 'linux',
-        tags: ['serial'],
-        protocol: 'serial',
-        createdAt: Date.now(),
-        serialConfig: config, // Store full serial configuration for connection
-      };
-      onSaveHost(host);
-    }
-
    onConnect(config);
    onClose();
  };
@@ -149,17 +114,9 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
    }));
  }, [ports]);

-  // Validate: port path must start with /dev/ (Unix/macOS) or COM/\\.\COM (Windows)
-  const trimmedPort = selectedPort.trim();
-  const isPortValid =
-    trimmedPort.startsWith('/dev/') ||
-    /^COM\d+$/i.test(trimmedPort) ||
-    /^\\\\\.\\COM\d+$/i.test(trimmedPort);
-  // Allow custom baud rates as long as they are positive integers
-  const isBaudRateValid = Number.isInteger(baudRate) && baudRate > 0;
-
-  // Check if using 1.5 stop bits (limited Windows support)
-  const isStopBits15 = stopBits === 1.5;
+  // Validate: port path must start with /dev/
+  const isPortValid = selectedPort.trim().startsWith('/dev/');
+  const isBaudRateValid = BAUD_RATES.includes(baudRate);
  const isValid = isPortValid && isBaudRateValid;

  return (
@@ -214,28 +171,18 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
          {/* Baud Rate */}
          <div className="space-y-2">
            <Label htmlFor="baud-rate">{t('serial.field.baudRate')}</Label>
-            <Combobox
-              options={BAUD_RATES.map((rate) => ({
-                value: String(rate),
-                label: String(rate),
-              }))}
-              value={String(baudRate)}
-              onValueChange={(val) => {
-                const parsed = parseInt(val, 10);
-                if (!isNaN(parsed) && parsed > 0) {
-                  setBaudRate(parsed);
-                }
-              }}
-              placeholder={t('serial.field.baudRatePlaceholder')}
-              emptyText={t('serial.field.baudRateEmpty')}
-              allowCreate
-              createText={t('common.use')}
-            />
-            {baudRate > 0 && !BAUD_RATES.includes(baudRate) && (
-              <p className="text-xs text-muted-foreground">
-                {t('serial.field.customBaudRate')}
-              </p>
-            )}
+            <select
+              id="baud-rate"
+              value={baudRate}
+              onChange={(e) => setBaudRate(parseInt(e.target.value, 10))}
+              className="w-full h-10 px-3 rounded-md border border-input bg-background text-sm focus:outline-none focus:ring-2 focus:ring-ring"
+            >
+              {BAUD_RATES.map((rate) => (
+                <option key={rate} value={rate}>
+                  {rate}
+                </option>
+              ))}
+            </select>
          </div>

          {/* Advanced Options */}
@@ -289,11 +236,6 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
                      </option>
                    ))}
                  </select>
-                  {isStopBits15 && (
-                    <p className="text-xs text-yellow-500">
-                      {t('serial.field.stopBits15Warning')}
-                    </p>
-                  )}
                </div>
              </div>

@@ -371,40 +313,6 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
              </div>
            </CollapsibleContent>
          </Collapsible>
-
-          {/* Save Configuration */}
-          {onSaveHost && (
-            <div className="space-y-3 pt-2 border-t border-border/60">
-              <div className="flex items-center justify-between">
-                <div className="space-y-0.5">
-                  <Label htmlFor="save-config" className="text-sm font-medium cursor-pointer">
-                    {t('serial.field.saveConfig')}
-                  </Label>
-                  <p className="text-xs text-muted-foreground">
-                    {t('serial.field.saveConfigDesc')}
-                  </p>
-                </div>
-                <input
-                  type="checkbox"
-                  id="save-config"
-                  checked={saveConfig}
-                  onChange={(e) => setSaveConfig(e.target.checked)}
-                  className="h-4 w-4 rounded border-input"
-                />
-              </div>
-              {saveConfig && (
-                <div className="space-y-2">
-                  <Label htmlFor="config-label">{t('serial.field.configLabel')}</Label>
-                  <Input
-                    id="config-label"
-                    value={configLabel}
-                    onChange={(e) => setConfigLabel(e.target.value)}
-                    placeholder={t('serial.field.configLabelPlaceholder')}
-                  />
-                </div>
-              )}
-            </div>
-          )}
        </div>

        <DialogFooter>
@@ -412,12 +320,8 @@ export const SerialConnectModal: React.FC<SerialConnectModalProps> = ({
            {t('common.cancel')}
          </Button>
          <Button onClick={handleConnect} disabled={!isValid}>
-            {saveConfig ? (
-              <Save size={14} className="mr-2" />
-            ) : (
-              <Cpu size={14} className="mr-2" />
-            )}
-            {saveConfig ? t('serial.connectAndSave') : t('common.connect')}
+            <Cpu size={14} className="mr-2" />
+            {t('common.connect')}
          </Button>
        </DialogFooter>
      </DialogContent>
--- a/components/SerialHostDetailsPanel.tsx
+++ b/components/SerialHostDetailsPanel.tsx
@@ -1,415 +0,0 @@
-/**
- * Serial Host Details Panel
- * A dedicated editor for serial port hosts (distinct from SSH HostDetailsPanel)
- */
-import { ChevronDown, ChevronUp, Save, Tag, Usb } from 'lucide-react';
-import React, { useCallback, useEffect, useMemo, useState } from 'react';
-import { useI18n } from '../application/i18n/I18nProvider';
-import { useTerminalBackend } from '../application/state/useTerminalBackend';
-import type { Host, SerialConfig, SerialFlowControl, SerialParity } from '../domain/models';
-
-import { Button } from './ui/button';
-import { Combobox, ComboboxOption, MultiCombobox } from './ui/combobox';
-import { Input } from './ui/input';
-import { Label } from './ui/label';
-import { Collapsible, CollapsibleContent, CollapsibleTrigger } from './ui/collapsible';
-import {
-  AsidePanel,
-  AsidePanelContent,
-  AsidePanelFooter,
-} from './ui/aside-panel';
-
-interface SerialPort {
-  path: string;
-  manufacturer: string;
-  serialNumber: string;
-  vendorId: string;
-  productId: string;
-  pnpId: string;
-  type?: 'hardware' | 'pseudo' | 'custom';
-}
-
-interface SerialHostDetailsPanelProps {
-  initialData: Host;
-  allTags?: string[];
-  groups?: string[];
-  onSave: (host: Host) => void;
-  onCancel: () => void;
-}
-
-const BAUD_RATES = [300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600];
-const DATA_BITS: Array<5 | 6 | 7 | 8> = [5, 6, 7, 8];
-const STOP_BITS: Array<1 | 1.5 | 2> = [1, 1.5, 2];
-const PARITY_OPTIONS: SerialParity[] = ['none', 'even', 'odd', 'mark', 'space'];
-const FLOW_CONTROL_OPTIONS: SerialFlowControl[] = ['none', 'xon/xoff', 'rts/cts'];
-
-export const SerialHostDetailsPanel: React.FC<SerialHostDetailsPanelProps> = ({
-  initialData,
-  allTags = [],
-  groups = [],
-  onSave,
-  onCancel,
-}) => {
-  const { t } = useI18n();
-  const terminalBackend = useTerminalBackend();
-  const [ports, setPorts] = useState<SerialPort[]>([]);
-  const [isLoadingPorts, setIsLoadingPorts] = useState(false);
-  const [showAdvanced, setShowAdvanced] = useState(false);
-
-  // Form state
-  const [label, setLabel] = useState(initialData.label);
-  const [selectedPort, setSelectedPort] = useState(initialData.hostname || initialData.serialConfig?.path || '');
-  const [baudRate, setBaudRate] = useState(initialData.serialConfig?.baudRate || initialData.port || 115200);
-  const [dataBits, setDataBits] = useState<5 | 6 | 7 | 8>(initialData.serialConfig?.dataBits || 8);
-  const [stopBits, setStopBits] = useState<1 | 1.5 | 2>(initialData.serialConfig?.stopBits || 1);
-  const [parity, setParity] = useState<SerialParity>(initialData.serialConfig?.parity || 'none');
-  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 [tags, setTags] = useState<string[]>(initialData.tags || []);
-  const [group, setGroup] = useState(initialData.group || '');
-
-  const loadPorts = useCallback(async () => {
-    setIsLoadingPorts(true);
-    try {
-      const result = await terminalBackend.listSerialPorts();
-      setPorts(result);
-    } catch (err) {
-      console.error('[Serial] Failed to list ports:', err);
-    } finally {
-      setIsLoadingPorts(false);
-    }
-  }, [terminalBackend]);
-
-  useEffect(() => {
-    loadPorts();
-  }, [loadPorts]);
-
-  const handleSave = () => {
-    if (!selectedPort) return;
-
-    const config: SerialConfig = {
-      path: selectedPort,
-      baudRate,
-      dataBits,
-      stopBits,
-      parity,
-      flowControl,
-      localEcho,
-      lineMode,
-    };
-
-    const portName = selectedPort.split('/').pop() || selectedPort;
-    const updatedHost: Host = {
-      ...initialData,
-      label: label.trim() || `Serial: ${portName}`,
-      hostname: selectedPort,
-      port: baudRate,
-      tags,
-      group,
-      serialConfig: config,
-    };
-
-    onSave(updatedHost);
-  };
-
-  // Convert ports to Combobox options
-  const portOptions: ComboboxOption[] = useMemo(() => {
-    return ports.map((port) => ({
-      value: port.path,
-      label: port.path,
-      sublabel: port.manufacturer || undefined,
-    }));
-  }, [ports]);
-
-  // Tag options for MultiCombobox
-  const tagOptions: ComboboxOption[] = useMemo(() => {
-    const allUniqueTags = new Set([...allTags, ...tags]);
-    return Array.from(allUniqueTags).map((tag) => ({
-      value: tag,
-      label: tag,
-    }));
-  }, [allTags, tags]);
-
-  // Group options for Combobox
-  const groupOptions: ComboboxOption[] = useMemo(() => {
-    const allGroups = new Set(groups);
-    if (group && !allGroups.has(group)) {
-      allGroups.add(group);
-    }
-    return Array.from(allGroups).map((g) => ({
-      value: g,
-      label: g,
-    }));
-  }, [groups, group]);
-
-  // Validation
-  const trimmedPort = selectedPort.trim();
-  const isPortValid =
-    trimmedPort.startsWith('/dev/') ||
-    /^COM\d+$/i.test(trimmedPort) ||
-    /^\\\\\.\\COM\d+$/i.test(trimmedPort);
-  const isBaudRateValid = Number.isInteger(baudRate) && baudRate > 0;
-  const isValid = isPortValid && isBaudRateValid;
-
-  // Check if using 1.5 stop bits (limited Windows support)
-  const isStopBits15 = stopBits === 1.5;
-
-  return (
-    <AsidePanel
-      open={true}
-      onClose={onCancel}
-      title={t('serial.edit.title')}
-      subtitle={initialData.label}
-      className="z-40"
-    >
-      <AsidePanelContent>
-        {/* Label */}
-        <div className="space-y-2">
-          <Label htmlFor="serial-label">{t('serial.field.configLabel')}</Label>
-          <Input
-            id="serial-label"
-            value={label}
-            onChange={(e) => setLabel(e.target.value)}
-            placeholder={t('serial.field.configLabelPlaceholder')}
-          />
-        </div>
-
-        {/* Serial Port */}
-        <div className="space-y-2">
-          <div className="flex items-center justify-between">
-            <Label htmlFor="serial-port">{t('serial.field.port')}</Label>
-            <Button
-              variant="ghost"
-              size="sm"
-              onClick={loadPorts}
-              disabled={isLoadingPorts}
-              className="h-6 px-2 text-xs"
-            >
-              {t('common.refresh')}
-            </Button>
-          </div>
-          <Combobox
-            options={portOptions}
-            value={selectedPort}
-            onValueChange={setSelectedPort}
-            placeholder={t('serial.field.selectPort')}
-            emptyText={t('serial.noPorts')}
-            allowCreate
-            createText={t('common.use')}
-            icon={<Usb size={14} className="text-muted-foreground" />}
-          />
-          {!isPortValid && selectedPort && (
-            <p className="text-xs text-destructive">
-              {t('serial.field.customPortPlaceholder')}
-            </p>
-          )}
-        </div>
-
-        {/* Baud Rate */}
-        <div className="space-y-2">
-          <Label htmlFor="baud-rate">{t('serial.field.baudRate')}</Label>
-          <Combobox
-            options={BAUD_RATES.map((rate) => ({
-              value: String(rate),
-              label: String(rate),
-            }))}
-            value={String(baudRate)}
-            onValueChange={(val) => {
-              const parsed = parseInt(val, 10);
-              if (!isNaN(parsed) && parsed > 0) {
-                setBaudRate(parsed);
-              }
-            }}
-            placeholder={t('serial.field.baudRatePlaceholder')}
-            emptyText={t('serial.field.baudRateEmpty')}
-            allowCreate
-            createText={t('common.use')}
-          />
-          {baudRate > 0 && !BAUD_RATES.includes(baudRate) && (
-            <p className="text-xs text-muted-foreground">
-              {t('serial.field.customBaudRate')}
-            </p>
-          )}
-        </div>
-
-        {/* Tags */}
-        <div className="space-y-2">
-          <Label className="flex items-center gap-2">
-            <Tag size={14} />
-            {t('hostDetails.tags')}
-          </Label>
-          <MultiCombobox
-            options={tagOptions}
-            values={tags}
-            onValuesChange={setTags}
-            placeholder={t('hostDetails.addTag')}
-            allowCreate
-            createText={t('hostDetails.createTag')}
-          />
-        </div>
-
-        {/* Group */}
-        <div className="space-y-2">
-          <Label>{t('hostDetails.group')}</Label>
-          <Combobox
-            options={groupOptions}
-            value={group}
-            onValueChange={setGroup}
-            placeholder={t('hostDetails.selectGroup')}
-            allowCreate
-            createText={t('hostDetails.createGroup')}
-          />
-        </div>
-
-        {/* Advanced Options */}
-        <Collapsible open={showAdvanced} onOpenChange={setShowAdvanced}>
-          <CollapsibleTrigger asChild>
-            <Button
-              variant="ghost"
-              className="w-full justify-between h-9 px-0 hover:bg-transparent"
-            >
-              <span className="text-sm font-medium text-muted-foreground">
-                {t('common.advanced')}
-              </span>
-              {showAdvanced ? (
-                <ChevronUp size={14} className="text-muted-foreground" />
-              ) : (
-                <ChevronDown size={14} className="text-muted-foreground" />
-              )}
-            </Button>
-          </CollapsibleTrigger>
-          <CollapsibleContent className="space-y-4 pt-2">
-            {/* Data Bits */}
-            <div className="grid grid-cols-2 gap-4">
-              <div className="space-y-2">
-                <Label htmlFor="data-bits">{t('serial.field.dataBits')}</Label>
-                <select
-                  id="data-bits"
-                  value={dataBits}
-                  onChange={(e) => setDataBits(parseInt(e.target.value, 10) as 5 | 6 | 7 | 8)}
-                  className="w-full h-10 px-3 rounded-md border border-input bg-background text-sm focus:outline-none focus:ring-2 focus:ring-ring"
-                >
-                  {DATA_BITS.map((bits) => (
-                    <option key={bits} value={bits}>
-                      {bits}
-                    </option>
-                  ))}
-                </select>
-              </div>
-
-              {/* Stop Bits */}
-              <div className="space-y-2">
-                <Label htmlFor="stop-bits">{t('serial.field.stopBits')}</Label>
-                <select
-                  id="stop-bits"
-                  value={stopBits}
-                  onChange={(e) => setStopBits(parseFloat(e.target.value) as 1 | 1.5 | 2)}
-                  className="w-full h-10 px-3 rounded-md border border-input bg-background text-sm focus:outline-none focus:ring-2 focus:ring-ring"
-                >
-                  {STOP_BITS.map((bits) => (
-                    <option key={bits} value={bits}>
-                      {bits}
-                    </option>
-                  ))}
-                </select>
-                {isStopBits15 && (
-                  <p className="text-xs text-yellow-500">
-                    {t('serial.field.stopBits15Warning')}
-                  </p>
-                )}
-              </div>
-            </div>
-
-            {/* Parity */}
-            <div className="space-y-2">
-              <Label htmlFor="parity">{t('serial.field.parity')}</Label>
-              <select
-                id="parity"
-                value={parity}
-                onChange={(e) => setParity(e.target.value as SerialParity)}
-                className="w-full h-10 px-3 rounded-md border border-input bg-background text-sm focus:outline-none focus:ring-2 focus:ring-ring"
-              >
-                {PARITY_OPTIONS.map((option) => (
-                  <option key={option} value={option}>
-                    {t(`serial.parity.${option}`)}
-                  </option>
-                ))}
-              </select>
-            </div>
-
-            {/* Flow Control */}
-            <div className="space-y-2">
-              <Label htmlFor="flow-control">{t('serial.field.flowControl')}</Label>
-              <select
-                id="flow-control"
-                value={flowControl}
-                onChange={(e) => setFlowControl(e.target.value as SerialFlowControl)}
-                className="w-full h-10 px-3 rounded-md border border-input bg-background text-sm focus:outline-none focus:ring-2 focus:ring-ring"
-              >
-                {FLOW_CONTROL_OPTIONS.map((option) => (
-                  <option key={option} value={option}>
-                    {t(`serial.flowControl.${option}`)}
-                  </option>
-                ))}
-              </select>
-            </div>
-
-            {/* Terminal Options */}
-            <div className="space-y-3 pt-2 border-t border-border/60">
-              <div className="flex items-center justify-between">
-                <div className="space-y-0.5">
-                  <Label htmlFor="local-echo" className="text-sm font-medium cursor-pointer">
-                    {t('serial.field.localEcho')}
-                  </Label>
-                  <p className="text-xs text-muted-foreground">
-                    {t('serial.field.localEchoDesc')}
-                  </p>
-                </div>
-                <input
-                  type="checkbox"
-                  id="local-echo"
-                  checked={localEcho}
-                  onChange={(e) => setLocalEcho(e.target.checked)}
-                  className="h-4 w-4 rounded border-input"
-                />
-              </div>
-
-              <div className="flex items-center justify-between">
-                <div className="space-y-0.5">
-                  <Label htmlFor="line-mode" className="text-sm font-medium cursor-pointer">
-                    {t('serial.field.lineMode')}
-                  </Label>
-                  <p className="text-xs text-muted-foreground">
-                    {t('serial.field.lineModeDesc')}
-                  </p>
-                </div>
-                <input
-                  type="checkbox"
-                  id="line-mode"
-                  checked={lineMode}
-                  onChange={(e) => setLineMode(e.target.checked)}
-                  className="h-4 w-4 rounded border-input"
-                />
-              </div>
-            </div>
-          </CollapsibleContent>
-        </Collapsible>
-      </AsidePanelContent>
-
-      <AsidePanelFooter>
-        <div className="flex gap-2">
-          <Button variant="ghost" onClick={onCancel} className="flex-1">
-            {t('common.cancel')}
-          </Button>
-          <Button onClick={handleSave} disabled={!isValid} className="flex-1">
-            <Save size={14} className="mr-2" />
-            {t('common.save')}
-          </Button>
-        </div>
-      </AsidePanelFooter>
-    </AsidePanel>
-  );
-};
-
-export default SerialHostDetailsPanel;
--- a/components/SftpView.tsx
+++ b/components/SftpView.tsx
@@ -59,7 +59,6 @@ import { Label } from "./ui/label";
 // Import extracted components
 import {
  ColumnWidths,
-  filterHiddenFiles,
  isNavigableDirectory,
  SftpBreadcrumb,
  SftpConflictDialog,
@@ -101,7 +100,6 @@ import {
  useSftpPaneCallbacks,
  useSftpDrag,
  useSftpHosts,
-  useSftpShowHiddenFiles,
  useActiveTabId,
  activeTabStore,
  type SftpPaneCallbacks,
@@ -164,7 +162,6 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({
  const callbacks = useSftpPaneCallbacks(side);
  const { draggedFiles, onDragStart, onDragEnd } = useSftpDrag();
  const hosts = useSftpHosts();
-  const showHiddenFiles = useSftpShowHiddenFiles();

  // Destructure for easier use
  const {
@@ -185,9 +182,8 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({
    onReceiveFromOtherPane,
    onEditPermissions,
    onEditFile,
+    onOpenFile,
    onOpenFileWith,
-    onDownloadFile,
-    onUploadExternalFiles,
  } = callbacks;

  // 渲染追踪 - 只追踪数据 props（回调来自 context，引用稳定）
@@ -259,16 +255,11 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({

  const filteredFiles = useMemo(() => {
    const term = pane.filter.trim().toLowerCase();
-
-    // Filter hidden files using utility function
-    let files = filterHiddenFiles(pane.files, showHiddenFiles);
-
-    // Apply text filter
-    if (!term) return files;
-    return files.filter(
+    if (!term) return pane.files;
+    return pane.files.filter(
      (f) => f.name === ".." || f.name.toLowerCase().includes(term),
    );
-  }, [pane.files, pane.filter, showHiddenFiles]);
+  }, [pane.files, pane.filter]);

  // Path suggestions
  const pathSuggestions = useMemo(() => {
@@ -602,18 +593,6 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({

  // Drag handlers
  const handlePaneDragOver = (e: React.DragEvent) => {
-    // Check if this is external file drag (from OS)
-    const hasFiles = e.dataTransfer.types.includes('Files');
-
-    // If it's external files, always allow drop
-    if (hasFiles) {
-      e.preventDefault();
-      e.dataTransfer.dropEffect = "copy";
-      setIsDragOverPane(true);
-      return;
-    }
-
-    // Otherwise, check if it's internal drag from other pane
    if (!draggedFiles || draggedFiles[0]?.side === side) return;
    e.preventDefault();
    e.dataTransfer.dropEffect = "copy";
@@ -628,23 +607,11 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({
    setDragOverEntry(null);
  };

-  const handlePaneDrop = async (e: React.DragEvent) => {
+  const handlePaneDrop = (e: React.DragEvent) => {
    e.preventDefault();
    e.stopPropagation();
    setIsDragOverPane(false);
    setDragOverEntry(null);
-
-    // Check if this is external file drop (from OS)
-    const droppedFiles = e.dataTransfer.files;
-    if (droppedFiles && droppedFiles.length > 0) {
-      // Handle external file upload using the callback
-      if (onUploadExternalFiles) {
-        await onUploadExternalFiles(droppedFiles);
-      }
-      return;
-    }
-
-    // Otherwise, handle internal drag from other pane
    if (!draggedFiles || draggedFiles[0]?.side === side) return;
    onReceiveFromOtherPane(
      draggedFiles.map((f) => ({ name: f.name, isDirectory: f.isDirectory })),
@@ -847,11 +814,18 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({
                </>
              ) : (
                <>
-                  <ExternalLink size={14} className="mr-2" />{" "}
-                  {t("sftp.context.open")}
+                  <Download size={14} className="mr-2" />{" "}
+                  {t("sftp.context.download")}
                </>
              )}
            </ContextMenuItem>
+            {/* File operations - only for files, not directories */}
+            {!isNavigableDirectory(entry) && onOpenFile && (
+              <ContextMenuItem onClick={() => onOpenFile(entry)}>
+                <ExternalLink size={14} className="mr-2" />{" "}
+                {t("sftp.context.open")}
+              </ContextMenuItem>
+            )}
            {!isNavigableDirectory(entry) && onOpenFileWith && (
              <ContextMenuItem onClick={() => onOpenFileWith(entry)}>
                <ExternalLink size={14} className="mr-2" />{" "}
@@ -864,12 +838,6 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({
                {t("sftp.context.edit")}
              </ContextMenuItem>
            )}
-            {!isNavigableDirectory(entry) && onDownloadFile && (
-              <ContextMenuItem onClick={() => onDownloadFile(entry)}>
-                <Download size={14} className="mr-2" />{" "}
-                {t("sftp.context.download")}
-              </ContextMenuItem>
-            )}
            <ContextMenuSeparator />
            <ContextMenuItem
              onClick={() => {
@@ -933,10 +901,10 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({
      handleRowOpen,
      handleRowSelect,
      onCopyToOtherPane,
-      onDownloadFile,
      onDragEnd,
      onEditFile,
      onEditPermissions,
+      onOpenFile,
      onOpenFileWith,
      onRefresh,
      openDeleteConfirm,
@@ -1291,7 +1259,7 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({
          <div className="flex items-center justify-center h-full">
            <Loader2 size={24} className="animate-spin text-muted-foreground" />
          </div>
-        ) : pane.error && !pane.reconnecting ? (
+        ) : pane.error ? (
          <div className="flex flex-col items-center justify-center h-full gap-2 text-destructive">
            <AlertCircle size={24} />
            <span className="text-sm">{pane.error}</span>
@@ -1341,25 +1309,12 @@ const SftpPaneViewInner: React.FC<SftpPaneViewProps> = ({
      </div>

      {/* Loading overlay - covers entire pane when navigating directories */}
-      {pane.loading && sortedDisplayFiles.length > 0 && !pane.reconnecting && (
+      {pane.loading && sortedDisplayFiles.length > 0 && (
        <div className="absolute inset-0 flex items-center justify-center bg-background/40 backdrop-blur-[1px] pointer-events-none z-10">
          <Loader2 size={24} className="animate-spin text-muted-foreground" />
        </div>
      )}

-      {/* Reconnecting overlay - shows when SFTP connection is lost and reconnecting */}
-      {pane.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 size={32} className="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>
-      )}
-
      {/* Dialogs */}
      <Dialog open={showNewFolderDialog} onOpenChange={setShowNewFolderDialog}>
        <DialogContent className="max-w-sm">
@@ -1525,8 +1480,8 @@ interface SftpViewProps {
 const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities }) => {
  const { t } = useI18n();
  const isActive = useIsSftpActive();
-  const { sftpDoubleClickBehavior, sftpAutoSync, sftpShowHiddenFiles } = useSettingsState();
-
+  const { sftpDoubleClickBehavior, sftpAutoSync } = useSettingsState();
+  
  // File watch event handlers (stable refs to avoid re-creating the useSftpState options)
  const fileWatchHandlers = useMemo(() => ({
    onFileWatchSynced: (payload: { remotePath: string }) => {
@@ -1539,7 +1494,7 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities }) =>
      logger.error("[SFTP] File auto-sync failed", payload);
    },
  }), [t]);
-
+  
  const sftp = useSftpState(hosts, keys, identities, fileWatchHandlers);

  // Store sftp in a ref so callbacks can access the latest instance
@@ -1550,7 +1505,7 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities }) =>
  // Store behavior setting in ref for stable callbacks
  const behaviorRef = useRef(sftpDoubleClickBehavior);
  behaviorRef.current = sftpDoubleClickBehavior;
-
+  
  // Store auto-sync setting in ref for stable callbacks
  const autoSyncRef = useRef(sftpAutoSync);
  autoSyncRef.current = sftpAutoSync;
@@ -1927,100 +1882,6 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities }) =>
    [handleOpenFileWithForSide],
  );

-  // Handle external file upload from OS drag-and-drop (shared logic)
-  // Uses sftpRef.current internally, so dependencies are stable.
-  // toast and logger are globally stable, t is the only real dependency.
-  const handleUploadExternalFilesForSide = useCallback(
-    async (side: "left" | "right", files: FileList) => {
-      try {
-        const results = await sftpRef.current.uploadExternalFiles(side, files);
-        const failCount = results.filter(r => !r.success).length;
-
-        if (failCount === 0) {
-          // All files uploaded successfully
-          const successCount = results.length;
-          const message = successCount === 1
-            ? `${t('sftp.upload')}: ${results[0].fileName}`
-            : `${t('sftp.uploadFiles')}: ${successCount}`;
-          toast.success(message, "SFTP");
-        } else {
-          // Some or all files failed
-          const failedFiles = results.filter(r => !r.success);
-          failedFiles.forEach(failed => {
-            const errorMsg = failed.error ? ` - ${failed.error}` : '';
-            toast.error(
-              `${t('sftp.error.uploadFailed')}: ${failed.fileName}${errorMsg}`,
-              "SFTP"
-            );
-          });
-        }
-      } catch (error) {
-        logger.error("[SftpView] Failed to upload external files:", error);
-        toast.error(
-          error instanceof Error ? error.message : t('sftp.error.uploadFailed'),
-          "SFTP"
-        );
-      }
-    },
-
-    [t],
-  );
-
-  const handleUploadExternalFilesLeft = useCallback(
-    (files: FileList) => handleUploadExternalFilesForSide("left", files),
-    [handleUploadExternalFilesForSide],
-  );
-
-  const handleUploadExternalFilesRight = useCallback(
-    (files: FileList) => handleUploadExternalFilesForSide("right", files),
-    [handleUploadExternalFilesForSide],
-  );
-
-  // Download file to local filesystem (browser download)
-  const handleDownloadFileForSide = useCallback(
-    async (side: "left" | "right", file: SftpFileEntry) => {
-      const pane = side === "left" ? sftpRef.current.leftPane : sftpRef.current.rightPane;
-      if (!pane.connection) return;
-
-      const fullPath = sftpRef.current.joinPath(pane.connection.currentPath, file.name);
-
-      try {
-        // Read the file as binary
-        const content = await sftpRef.current.readBinaryFile(side, fullPath);
-
-        // Create blob and trigger browser download
-        const blob = new Blob([content], { type: "application/octet-stream" });
-        const url = URL.createObjectURL(blob);
-        const a = document.createElement("a");
-        a.href = url;
-        a.download = file.name;
-        document.body.appendChild(a);
-        a.click();
-        document.body.removeChild(a);
-        URL.revokeObjectURL(url);
-
-        toast.success(`${t('sftp.context.download')}: ${file.name}`, "SFTP");
-      } catch (e) {
-        logger.error("[SftpView] Failed to download file:", e);
-        toast.error(
-          e instanceof Error ? e.message : t('sftp.error.downloadFailed'),
-          "SFTP"
-        );
-      }
-    },
-    [t],
-  );
-
-  const handleDownloadFileLeft = useCallback(
-    (file: SftpFileEntry) => handleDownloadFileForSide("left", file),
-    [handleDownloadFileForSide],
-  );
-
-  const handleDownloadFileRight = useCallback(
-    (file: SftpFileEntry) => handleDownloadFileForSide("right", file),
-    [handleDownloadFileForSide],
-  );
-
  // Custom handleOpenEntry callbacks that check the double-click behavior setting
  const handleOpenEntryLeft = useCallback(
    (entry: SftpFileEntry) => {
@@ -2098,8 +1959,6 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities }) =>
      onEditFile: handleEditFileLeft,
      onOpenFile: handleOpenFileLeft,
      onOpenFileWith: handleOpenFileWithLeft,
-      onDownloadFile: handleDownloadFileLeft,
-      onUploadExternalFiles: handleUploadExternalFilesLeft,
    }),
    [],
  );
@@ -2125,8 +1984,6 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities }) =>
      onEditFile: handleEditFileRight,
      onOpenFile: handleOpenFileRight,
      onOpenFileWith: handleOpenFileWithRight,
-      onDownloadFile: handleDownloadFileRight,
-      onUploadExternalFiles: handleUploadExternalFilesRight,
    }),
    [],
  );
@@ -2267,7 +2124,6 @@ const SftpViewInner: React.FC<SftpViewProps> = ({ hosts, keys, identities }) =>
      dragCallbacks={dragCallbacks}
      leftCallbacks={leftCallbacks}
      rightCallbacks={rightCallbacks}
-      showHiddenFiles={sftpShowHiddenFiles}
    >
      <div
        className={cn(
--- a/components/Terminal.tsx
+++ b/components/Terminal.tsx
@@ -5,7 +5,6 @@ import { SearchAddon } from "@xterm/addon-search";
 import "@xterm/xterm/css/xterm.css";
 import { Maximize2, Radio } from "lucide-react";
 import React, { memo, useEffect, useMemo, useRef, useState } from "react";
-import { flushSync } from "react-dom";
 import { useI18n } from "../application/i18n/I18nProvider";
 import { logger } from "../lib/logger";
 import { cn } from "../lib/utils";
@@ -182,7 +181,6 @@ const TerminalComponent: React.FC<TerminalProps> = ({
  const [timeLeft, setTimeLeft] = useState(CONNECTION_TIMEOUT / 1000);
  const [isCancelling, setIsCancelling] = useState(false);
  const [showSFTP, setShowSFTP] = useState(false);
-  const [sftpInitialPath, setSftpInitialPath] = useState<string | undefined>(undefined);
  const [progressValue, setProgressValue] = useState(15);
  const [hasSelection, setHasSelection] = useState(false);

@@ -734,34 +732,6 @@ const TerminalComponent: React.FC<TerminalProps> = ({
    termRef.current?.writeln("\r\n[No active SSH session]");
  };

-  const handleOpenSFTP = async () => {
-    // If SFTP is already open, toggle it off
-    if (showSFTP) {
-      setShowSFTP(false);
-      return;
-    }
-
-    // Try to get the current working directory from the terminal session
-    let initialPath: string | undefined = undefined;
-    if (sessionRef.current) {
-      try {
-        const result = await terminalBackend.getSessionPwd(sessionRef.current);
-        if (result.success && result.cwd) {
-          initialPath = result.cwd;
-        }
-      } catch {
-        // Silently fail and open SFTP without initial path
-      }
-    }
-
-    // Use flushSync to ensure initialPath state is committed before opening SFTP modal
-    // This prevents React's batching from causing the modal to open with stale/undefined initialPath
-    flushSync(() => {
-      setSftpInitialPath(initialPath);
-    });
-    setShowSFTP(true);
-  };
-
  const handleCancelConnect = () => {
    setIsCancelling(true);
    auth.setNeedsAuth(false);
@@ -840,7 +810,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
      onUpdateTerminalFontSize={onUpdateTerminalFontSize}
      isScriptsOpen={isScriptsOpen}
      setIsScriptsOpen={setIsScriptsOpen}
-      onOpenSFTP={handleOpenSFTP}
+      onOpenSFTP={() => setShowSFTP((v) => !v)}
      onSnippetClick={handleSnippetClick}
      onUpdateHost={onUpdateHost}
      showClose={opts?.showClose}
@@ -1083,7 +1053,6 @@ const TerminalComponent: React.FC<TerminalProps> = ({
          })()}
          open={showSFTP && status === "connected"}
          onClose={() => setShowSFTP(false)}
-          initialPath={sftpInitialPath}
        />
      </div>
    </TerminalContextMenu>
--- a/components/VaultView.tsx
+++ b/components/VaultView.tsx
@@ -50,7 +50,6 @@ import PortForwarding from "./PortForwardingNew";
 import QuickConnectWizard from "./QuickConnectWizard";
 import { isQuickConnectInput, parseQuickConnectInputWithWarnings } from "../domain/quickConnect";
 import SerialConnectModal from "./SerialConnectModal";
-import SerialHostDetailsPanel from "./SerialHostDetailsPanel";
 import SnippetsManager from "./SnippetsManager";
 import { ImportVaultDialog } from "./vault/ImportVaultDialog";
 import { Button } from "./ui/button";
@@ -1362,7 +1361,7 @@ const VaultViewInner: React.FC<VaultViewProps> = ({
      </div>

      {/* Host Details Panel - positioned at VaultView root level for correct top alignment */}
-      {currentSection === "hosts" && isHostPanelOpen && editingHost?.protocol !== 'serial' && (
+      {currentSection === "hosts" && isHostPanelOpen && (
        <HostDetailsPanel
          initialData={editingHost}
          availableKeys={keys}
@@ -1397,31 +1396,6 @@ const VaultViewInner: React.FC<VaultViewProps> = ({
        />
      )}

-      {/* Serial Host Details Panel - for editing serial port hosts */}
-      {currentSection === "hosts" && isHostPanelOpen && editingHost?.protocol === 'serial' && (
-        <SerialHostDetailsPanel
-          initialData={editingHost}
-          allTags={allTags}
-          groups={Array.from(
-            new Set([
-              ...customGroups,
-              ...hosts.map((h) => h.group || "General"),
-            ]),
-          )}
-          onSave={(host) => {
-            onUpdateHosts(
-              hosts.map((h) => (h.id === host.id ? host : h)),
-            );
-            setIsHostPanelOpen(false);
-            setEditingHost(null);
-          }}
-          onCancel={() => {
-            setIsHostPanelOpen(false);
-            setEditingHost(null);
-          }}
-        />
-      )}
-
      <Dialog open={isNewFolderOpen} onOpenChange={(open) => {
        setIsNewFolderOpen(open);
        if (!open) {
@@ -1558,9 +1532,6 @@ const VaultViewInner: React.FC<VaultViewProps> = ({
            onConnectSerial(config);
          }
        }}
-        onSaveHost={(host) => {
-          onUpdateHosts([...hosts, host]);
-        }}
      />
    </div>
  );
--- a/components/settings/tabs/SettingsFileAssociationsTab.tsx
+++ b/components/settings/tabs/SettingsFileAssociationsTab.tsx
@@ -29,7 +29,7 @@ const getOpenerLabel = (
 export default function SettingsFileAssociationsTab() {
  const { t } = useI18n();
  const { getAllAssociations, removeAssociation, setOpenerForExtension } = useSftpFileAssociations();
-  const { sftpDoubleClickBehavior, setSftpDoubleClickBehavior, sftpAutoSync, setSftpAutoSync, sftpShowHiddenFiles, setSftpShowHiddenFiles } = useSettingsState();
+  const { sftpDoubleClickBehavior, setSftpDoubleClickBehavior, sftpAutoSync, setSftpAutoSync } = useSettingsState();
  const associations = getAllAssociations();
  const [editingExtension, setEditingExtension] = useState<string | null>(null);

@@ -173,46 +173,6 @@ export default function SettingsFileAssociationsTab() {
          </button>
        </div>

-        {/* Show hidden files section */}
-        <div className="space-y-4">
-          <SectionHeader title={t('settings.sftp.showHiddenFiles')} />
-          <p className="text-sm text-muted-foreground">
-            {t('settings.sftp.showHiddenFiles.desc')}
-          </p>
-          <button
-            onClick={() => setSftpShowHiddenFiles(!sftpShowHiddenFiles)}
-            className={cn(
-              "w-full text-left p-4 rounded-lg border-2 transition-colors",
-              sftpShowHiddenFiles
-                ? "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 border-2 flex items-center justify-center mt-0.5 shrink-0",
-                sftpShowHiddenFiles
-                  ? "border-primary bg-primary"
-                  : "border-muted-foreground/30"
-              )}>
-                {sftpShowHiddenFiles && (
-                  <svg className="h-3 w-3 text-primary-foreground" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={3}>
-                    <path strokeLinecap="round" strokeLinejoin="round" d="M5 13l4 4L19 7" />
-                  </svg>
-                )}
-              </div>
-              <div className="space-y-1">
-                <Label className="font-medium cursor-pointer">
-                  {t('settings.sftp.showHiddenFiles.enable')}
-                </Label>
-                <p className="text-sm text-muted-foreground">
-                  {t('settings.sftp.showHiddenFiles.enableDesc')}
-                </p>
-              </div>
-            </div>
-          </button>
-        </div>
-
        {/* File associations section */}
        <div className="space-y-4">
          <SectionHeader title={t('settings.sftpFileAssociations.title')} />
--- a/components/sftp/SftpContext.tsx
+++ b/components/sftp/SftpContext.tsx
@@ -31,9 +31,6 @@ export interface SftpPaneCallbacks {
    onEditFile?: (entry: SftpFileEntry) => void;
    onOpenFile?: (entry: SftpFileEntry) => void;
    onOpenFileWith?: (entry: SftpFileEntry) => void;  // Always show opener dialog
-    onDownloadFile?: (entry: SftpFileEntry) => void;  // Download to local filesystem
-    // External file upload
-    onUploadExternalFiles?: (files: FileList) => Promise<void>;
 }

 export interface SftpDragCallbacks {
@@ -94,9 +91,6 @@ export interface SftpContextValue {
    // Callbacks for each side
    leftCallbacks: SftpPaneCallbacks;
    rightCallbacks: SftpPaneCallbacks;
-
-    // Settings
-    showHiddenFiles: boolean;
 }

 const SftpContext = createContext<SftpContextValue | null>(null);
@@ -130,19 +124,12 @@ export const useSftpHosts = () => {
    return context.hosts;
 };

-// Hook to get showHiddenFiles setting
-export const useSftpShowHiddenFiles = (): boolean => {
-    const context = useSftpContext();
-    return context.showHiddenFiles;
-};
-
 interface SftpContextProviderProps {
    hosts: Host[];
    draggedFiles: { name: string; isDirectory: boolean; side: "left" | "right" }[] | null;
    dragCallbacks: SftpDragCallbacks;
    leftCallbacks: SftpPaneCallbacks;
    rightCallbacks: SftpPaneCallbacks;
-    showHiddenFiles: boolean;
    children: React.ReactNode;
 }

@@ -152,7 +139,6 @@ export const SftpContextProvider: React.FC<SftpContextProviderProps> = ({
    dragCallbacks,
    leftCallbacks,
    rightCallbacks,
-    showHiddenFiles,
    children,
 }) => {
    // Memoize the context value to prevent unnecessary re-renders
@@ -164,9 +150,8 @@ export const SftpContextProvider: React.FC<SftpContextProviderProps> = ({
            dragCallbacks,
            leftCallbacks,
            rightCallbacks,
-            showHiddenFiles,
        }),
-        [hosts, draggedFiles, dragCallbacks, leftCallbacks, rightCallbacks, showHiddenFiles],
+        [hosts, draggedFiles, dragCallbacks, leftCallbacks, rightCallbacks],
    );

    return <SftpContext.Provider value={value}>{children}</SftpContext.Provider>;
--- a/components/sftp/index.ts
+++ b/components/sftp/index.ts
@@ -7,7 +7,7 @@
 // Utilities
 export {
 formatBytes,formatDate,
-formatSpeed,formatTransferBytes,getFileIcon,isNavigableDirectory,isWindowsHiddenFile,filterHiddenFiles,type ColumnWidths,type SortField,
+formatSpeed,formatTransferBytes,getFileIcon,isNavigableDirectory,type ColumnWidths,type SortField,
 type SortOrder
 } from './utils';

@@ -18,7 +18,6 @@ export {
  useSftpPaneCallbacks,
  useSftpDrag,
  useSftpHosts,
-  useSftpShowHiddenFiles,
  useActiveTabId,
  useIsPaneActive,
  activeTabStore,
--- a/components/sftp/utils.ts
+++ b/components/sftp/utils.ts
@@ -187,33 +187,3 @@ export interface ColumnWidths {
 export const isNavigableDirectory = (entry: SftpFileEntry): boolean => {
    return entry.type === 'directory' || (entry.type === 'symlink' && entry.linkTarget === 'directory');
 };
-
-/**
- * Check if a file is hidden on Windows
- * Only applies to local Windows filesystem where the hidden attribute is set
- * The ".." parent directory entry is never considered hidden
- * 
- * Note: On Unix/Linux, there's no system-level hidden file concept.
- * Dotfiles are just a convention, not actual hidden files, so we don't filter them.
- */
-export const isWindowsHiddenFile = <T extends { name: string; hidden?: boolean }>(file: T): boolean => {
-    if (file.name === "..") return false;
-    return file.hidden === true;
-};
-
-/**
- * Filter files based on Windows hidden file visibility setting
- * Only filters files with the Windows hidden attribute set
- * Always preserves ".." parent directory entry
- * 
- * This setting only affects local Windows filesystem browsing.
- * On Unix/Linux systems and remote SFTP connections, all files are shown
- * because there's no system-level hidden file concept (dotfiles are just a convention).
- */
-export const filterHiddenFiles = <T extends { name: string; hidden?: boolean }>(
-    files: T[],
-    showHiddenFiles: boolean
-): T[] => {
-    if (showHiddenFiles) return files;
-    return files.filter((f) => !isWindowsHiddenFile(f));
-};
--- a/domain/models.ts
+++ b/domain/models.ts
@@ -88,8 +88,6 @@ export interface Host {
  telnetEnabled?: boolean; // Is Telnet enabled for this host
  telnetUsername?: string; // Telnet-specific username
  telnetPassword?: string; // Telnet-specific password
-  // Serial-specific configuration (for protocol='serial' hosts)
-  serialConfig?: SerialConfig;
 }

 export type KeyType = 'RSA' | 'ECDSA' | 'ED25519';
@@ -475,7 +473,6 @@ export interface RemoteFile {
  lastModified: string;
  linkTarget?: 'file' | 'directory' | null; // For symlinks: the type of the target, or null if broken
  permissions?: string; // rwx format for owner/group/others e.g. "rwxr-xr-x"
-  hidden?: boolean; // Windows hidden attribute (only set for local Windows filesystem)
 }

 export type WorkspaceNode =
@@ -515,7 +512,6 @@ export interface SftpFileEntry {
  owner?: string;
  group?: string;
  linkTarget?: 'file' | 'directory' | null; // For symlinks: the type of the target, or null if broken
-  hidden?: boolean; // Windows hidden attribute (only set for local Windows filesystem)
 }

 export interface SftpConnection {
@@ -619,7 +615,7 @@ export interface ConnectionLog {
  hostLabel: string; // Display label (e.g., 'Local Terminal' or host label)
  hostname: string; // Target hostname or 'localhost'
  username: string; // SSH username or system username
-  protocol: 'ssh' | 'telnet' | 'local' | 'mosh' | 'serial';
+  protocol: 'ssh' | 'telnet' | 'local' | 'mosh';
  startTime: number; // Connection start timestamp
  endTime?: number; // Connection end timestamp (undefined if still active)
  localUsername: string; // System username of the local user
--- a/electron-builder.config.cjs
+++ b/electron-builder.config.cjs
@@ -1,110 +0,0 @@
-/* global __dirname */
-const path = require('path');
-
-/**
- * @type {import('electron-builder').Configuration}
- */
-module.exports = {
-    appId: 'com.netcatty.app',
-    productName: 'Netcatty',
-    artifactName: '${productName}-${version}-${os}-${arch}.${ext}',
-    icon: 'public/icon.png',
-    directories: {
-        buildResources: 'build',
-        output: 'release'
-    },
-    files: [
-        'dist/**/*',
-        'electron/**/*',
-        '!electron/.dev-config.json',
-        'public/**/*',
-        'node_modules/**/*'
-    ],
-    asarUnpack: [
-        'node_modules/node-pty/**/*',
-        'node_modules/ssh2/**/*',
-        'node_modules/cpu-features/**/*'
-    ],
-    mac: {
-        target: [
-            {
-                target: 'dmg',
-                arch: ['arm64', 'x64']
-            },
-            {
-                target: 'zip',
-                arch: ['arm64', 'x64']
-            }
-        ],
-        category: 'public.app-category.developer-tools',
-        hardenedRuntime: false,
-        gatekeeperAssess: false,
-        entitlements: 'electron/entitlements.mac.plist',
-        entitlementsInherit: 'electron/entitlements.mac.plist',
-        extendInfo: {
-            NSCameraUsageDescription: 'Netcatty may use the camera for video calls',
-            NSMicrophoneUsageDescription: 'Netcatty may use the microphone for audio',
-            NSLocalNetworkUsageDescription: 'Netcatty needs local network access for SSH connections'
-        }
-    },
-    dmg: {
-        title: '${productName}',
-        background: 'public/dmg-background.jpg',
-        iconSize: 100,
-        iconTextSize: 12,
-        window: {
-            width: 672,
-            height: 500
-        },
-        contents: [
-            { x: 150, y: 158 },
-            { x: 550, y: 158, type: 'link', path: '/Applications' },
-            {
-                x: 350,
-                y: 330,
-                type: 'file',
-                // Use absolute path resolved at build time
-                path: path.resolve(__dirname, 'scripts/FixQuarantine.app'),
-                name: '已损坏修复.app'
-            }
-        ]
-    },
-    win: {
-        target: [
-            {
-                target: 'nsis',
-                arch: ['x64']
-            },
-            {
-                target: 'dir',
-                arch: ['x64']
-            }
-        ]
-    },
-    nsis: {
-        oneClick: false,
-        perMachine: false,
-        allowElevation: true,
-        allowToChangeInstallationDirectory: true,
-        createDesktopShortcut: true,
-        createStartMenuShortcut: true,
-        shortcutName: 'Netcatty'
-    },
-    linux: {
-        target: [
-            {
-                target: 'AppImage',
-                arch: ['x64', 'arm64']
-            },
-            {
-                target: 'deb',
-                arch: ['x64', 'arm64']
-            },
-            {
-                target: 'rpm',
-                arch: ['x64', 'arm64']
-            }
-        ],
-        category: 'Development'
-    }
-};
--- a/electron-builder.json
+++ b/electron-builder.json
@@ -0,0 +1,83 @@
+{
+  "$schema": "https://raw.githubusercontent.com/electron-userland/electron-builder/master/packages/app-builder-lib/scheme.json",
+  "appId": "com.netcatty.app",
+  "productName": "Netcatty",
+  "artifactName": "${productName}-${version}-${os}-${arch}.${ext}",
+  "icon": "public/icon.png",
+  "directories": {
+    "buildResources": "build",
+    "output": "release"
+  },
+  "files": [
+    "dist/**/*",
+    "electron/**/*",
+    "!electron/.dev-config.json",
+    "public/**/*",
+    "node_modules/**/*"
+  ],
+  "asarUnpack": [
+    "node_modules/node-pty/**/*",
+    "node_modules/ssh2/**/*",
+    "node_modules/cpu-features/**/*"
+  ],
+  "mac": {
+    "target": [
+      {
+        "target": "dmg",
+        "arch": ["arm64", "x64"]
+      },
+      {
+        "target": "zip",
+        "arch": ["arm64", "x64"]
+      }
+    ],
+    "category": "public.app-category.developer-tools",
+    "hardenedRuntime": false,
+    "gatekeeperAssess": false,
+    "entitlements": "electron/entitlements.mac.plist",
+    "entitlementsInherit": "electron/entitlements.mac.plist",
+    "extendInfo": {
+      "NSCameraUsageDescription": "Netcatty may use the camera for video calls",
+      "NSMicrophoneUsageDescription": "Netcatty may use the microphone for audio",
+      "NSLocalNetworkUsageDescription": "Netcatty needs local network access for SSH connections"
+    }
+  },
+  "win": {
+    "target": [
+      {
+        "target": "nsis",
+        "arch": ["x64"]
+      },
+      {
+        "target": "dir",
+        "arch": ["x64"]
+      }
+    ]
+  },
+  "nsis": {
+    "oneClick": false,
+    "perMachine": false,
+    "allowElevation": true,
+    "allowToChangeInstallationDirectory": true,
+    "createDesktopShortcut": true,
+    "createStartMenuShortcut": true,
+    "shortcutName": "Netcatty"
+  },
+  "linux": {
+    "target": [
+      {
+        "target": "AppImage",
+        "arch": ["x64", "arm64"]
+      },
+      {
+        "target": "deb",
+        "arch": ["x64", "arm64"]
+      },
+      {
+        "target": "rpm",
+        "arch": ["x64", "arm64"]
+      }
+    ],
+    "category": "Development"
+  }
+}
--- a/electron/bridges/localFsBridge.cjs
+++ b/electron/bridges/localFsBridge.cjs
@@ -6,35 +6,14 @@
 const fs = require("node:fs");
 const path = require("node:path");
 const os = require("node:os");
-const { execSync } = require("node:child_process");
-
-/**
- * Check if a file is hidden on Windows using the attrib command
- * Returns true if the file has the hidden attribute set
- */
-function isWindowsHiddenFile(filePath) {
-  if (process.platform !== "win32") return false;
-  try {
-    const output = execSync(`attrib "${filePath}"`, { encoding: "utf8" });
-    // attrib output format: "     H  R  filename" where H = hidden, R = read-only, etc.
-    // The attributes appear in the first ~10 characters before the path
-    const attrPart = output.substring(0, output.indexOf(filePath)).toUpperCase();
-    return attrPart.includes("H");
-  } catch (err) {
-    console.warn(`Could not check hidden attribute for ${filePath}:`, err.message);
-    return false;
-  }
-}

 /**
 * List files in a local directory
 * Properly handles symlinks by resolving their target type
- * On Windows, also detects hidden files using the hidden attribute
 */
 async function listLocalDir(event, payload) {
  const dirPath = payload.path;
  const entries = await fs.promises.readdir(dirPath, { withFileTypes: true });
-  const isWindows = process.platform === "win32";

  // Stat entries in parallel with a small concurrency limit.
  // Serial stats can be very slow on Windows for large dirs.
@@ -66,16 +45,12 @@ async function listLocalDir(event, payload) {
          type = "file";
        }
        
-        // Check for Windows hidden attribute
-        const hidden = isWindows ? isWindowsHiddenFile(fullPath) : false;
-        
        result[i] = {
          name: entry.name,
          type,
          linkTarget,
          size: `${stat.size} bytes`,
          lastModified: stat.mtime.toISOString(),
-          hidden,
        };
      } catch (err) {
        // Handle broken symlinks - lstat doesn't follow symlinks
@@ -86,14 +61,12 @@ async function listLocalDir(event, payload) {
            const lstat = await fs.promises.lstat(fullPath);
            if (lstat.isSymbolicLink()) {
              // Broken symlink
-              const hidden = isWindows ? isWindowsHiddenFile(fullPath) : false;
              result[i] = {
                name: brokenEntry.name,
                type: "symlink",
                linkTarget: null, // Broken link - target unknown
                size: `${lstat.size} bytes`,
                lastModified: lstat.mtime.toISOString(),
-                hidden,
              };
              return;
            }
--- a/electron/bridges/sftpBridge.cjs
+++ b/electron/bridges/sftpBridge.cjs
@@ -466,23 +466,11 @@ async function listSftp(event, payload) {
 async function readSftp(event, payload) {
  const client = sftpClients.get(payload.sftpId);
  if (!client) throw new Error("SFTP session not found");
-
+  
  const buffer = await client.get(payload.path);
  return buffer.toString();
 }

-/**
- * Read file as binary (returns ArrayBuffer for binary files like images)
- */
-async function readSftpBinary(event, payload) {
-  const client = sftpClients.get(payload.sftpId);
-  if (!client) throw new Error("SFTP session not found");
-
-  const buffer = await client.get(payload.path);
-  // Convert Node.js Buffer to ArrayBuffer
-  return buffer.buffer.slice(buffer.byteOffset, buffer.byteOffset + buffer.byteLength);
-}
-
 /**
 * Write file content
 */
@@ -661,7 +649,6 @@ function registerHandlers(ipcMain) {
  ipcMain.handle("netcatty:sftp:open", openSftp);
  ipcMain.handle("netcatty:sftp:list", listSftp);
  ipcMain.handle("netcatty:sftp:read", readSftp);
-  ipcMain.handle("netcatty:sftp:readBinary", readSftpBinary);
  ipcMain.handle("netcatty:sftp:write", writeSftp);
  ipcMain.handle("netcatty:sftp:writeBinaryWithProgress", writeSftpBinaryWithProgress);
  ipcMain.handle("netcatty:sftp:close", closeSftp);
@@ -686,7 +673,6 @@ module.exports = {
  openSftp,
  listSftp,
  readSftp,
-  readSftpBinary,
  writeSftp,
  writeSftpBinaryWithProgress,
  closeSftp,
--- a/electron/bridges/sshBridge.cjs
+++ b/electron/bridges/sshBridge.cjs
@@ -13,7 +13,7 @@ const { NetcattyAgent } = require("./netcattyAgent.cjs");
 const logFile = path.join(require("os").tmpdir(), "netcatty-ssh.log");
 const log = (msg, data) => {
  const line = `[${new Date().toISOString()}] ${msg} ${data ? JSON.stringify(data) : ""}\n`;
-  try { fs.appendFileSync(logFile, line); } catch { }
+  try { fs.appendFileSync(logFile, line); } catch {}
  console.log("[SSH]", msg, data || "");
 };

@@ -64,7 +64,7 @@ function createProxySocket(proxy, targetHost, targetPort) {
        }
        const connectRequest = `CONNECT ${targetHost}:${targetPort} HTTP/1.1\r\nHost: ${targetHost}:${targetPort}\r\n${authHeader}\r\n`;
        socket.write(connectRequest);
-
+        
        let response = '';
        const onData = (data) => {
          response += data.toString();
@@ -87,7 +87,7 @@ function createProxySocket(proxy, targetHost, targetPort) {
        // SOCKS5 greeting
        const authMethods = proxy.username && proxy.password ? [0x00, 0x02] : [0x00];
        socket.write(Buffer.from([0x05, authMethods.length, ...authMethods]));
-
+        
        let step = 'greeting';
        const onData = (data) => {
          if (step === 'greeting') {
@@ -144,7 +144,7 @@ function createProxySocket(proxy, targetHost, targetPort) {
            }
          }
        };
-
+        
        const sendConnectRequest = () => {
          // SOCKS5 connect request
          const hostBuf = Buffer.from(targetHost);
@@ -155,7 +155,7 @@ function createProxySocket(proxy, targetHost, targetPort) {
          ]);
          socket.write(request);
        };
-
+        
        socket.on('data', onData);
      });
      socket.on('error', reject);
@@ -172,27 +172,27 @@ async function connectThroughChain(event, options, jumpHosts, targetHost, target
  const sender = event.sender;
  const connections = [];
  let currentSocket = null;
-
+  
  const sendProgress = (hop, total, label, status) => {
    if (!sender.isDestroyed()) {
      sender.send("netcatty:chain:progress", { hop, total, label, status });
    }
  };
-
+  
  try {
    const totalHops = jumpHosts.length;
-
+    
    // Connect through each jump host
    for (let i = 0; i < jumpHosts.length; i++) {
      const jump = jumpHosts[i];
      const isFirst = i === 0;
      const isLast = i === jumpHosts.length - 1;
      const hopLabel = jump.label || `${jump.hostname}:${jump.port || 22}`;
-
+      
      sendProgress(i + 1, totalHops + 1, hopLabel, 'connecting');
-
+      
      const conn = new SSHClient();
-
+      
      // Build connection options
      const connOpts = {
        host: jump.hostname,
@@ -211,7 +211,7 @@ async function connectThroughChain(event, options, jumpHosts, targetHost, target
          compress: ['none'],
        },
      };
-
+      
      // Auth - support agent (certificate), key, and password fallback
      const hasCertificate =
        typeof jump.certificate === "string" && jump.certificate.trim().length > 0;
@@ -241,7 +241,7 @@ async function connectThroughChain(event, options, jumpHosts, targetHost, target
        if (connOpts.password) order.push("password");
        connOpts.authHandler = order;
      }
-
+      
      // If first hop and proxy is configured, connect through proxy
      if (isFirst && options.proxy) {
        currentSocket = await createProxySocket(options.proxy, jump.hostname, jump.port || 22);
@@ -254,7 +254,7 @@ async function connectThroughChain(event, options, jumpHosts, targetHost, target
        delete connOpts.host;
        delete connOpts.port;
      }
-
+      
      // Connect this hop
      await new Promise((resolve, reject) => {
        conn.on('ready', () => {
@@ -274,9 +274,9 @@ async function connectThroughChain(event, options, jumpHosts, targetHost, target
        console.log(`[Chain] Hop ${i + 1}/${totalHops}: Connecting to ${hopLabel}...`);
        conn.connect(connOpts);
      });
-
+      
      connections.push(conn);
-
+      
      // Determine next target
      let nextHost, nextPort;
      if (isLast) {
@@ -289,7 +289,7 @@ async function connectThroughChain(event, options, jumpHosts, targetHost, target
        nextHost = nextJump.hostname;
        nextPort = nextJump.port || 22;
      }
-
+      
      // Create forward stream to next hop
      console.log(`[Chain] Hop ${i + 1}/${totalHops}: Forwarding from ${hopLabel} to ${nextHost}:${nextPort}...`);
      sendProgress(i + 1, totalHops + 1, hopLabel, 'forwarding');
@@ -305,17 +305,17 @@ async function connectThroughChain(event, options, jumpHosts, targetHost, target
        });
      });
    }
-
+    
    // Return the final forwarded stream and all connections for cleanup
-    return {
-      socket: currentSocket,
+    return { 
+      socket: currentSocket, 
      connections,
-      sendProgress
+      sendProgress 
    };
  } catch (err) {
    // Cleanup on error
    for (const conn of connections) {
-      try { conn.end(); } catch { }
+      try { conn.end(); } catch {}
    }
    throw err;
  }
@@ -332,7 +332,7 @@ async function startSSHSession(event, options) {
  const cols = options.cols || 80;
  const rows = options.rows || 24;
  const sender = event.sender;
-
+  
  const sendProgress = (hop, total, label, status) => {
    if (!sender.isDestroyed()) {
      sender.send("netcatty:chain:progress", { hop, total, label, status });
@@ -343,13 +343,13 @@ async function startSSHSession(event, options) {
    const conn = new SSHClient();
    let chainConnections = [];
    let connectionSocket = null;
-
+    
    // Determine if we have jump hosts
    const jumpHosts = options.jumpHosts || [];
    const hasJumpHosts = jumpHosts.length > 0;
    const hasProxy = !!options.proxy;
    const totalHops = jumpHosts.length + 1; // +1 for final target
-
+    
    // Build base connection options for final target
    const connectOpts = {
      host: options.hostname,
@@ -382,7 +382,7 @@ async function startSSHSession(event, options) {
      hasPassword: !!options.password,
      hasEffectivePassphrase: !!effectivePassphrase,
    });
-
+    
    log("Auth configuration", {
      hasCertificate,
      keySource: options.keySource,
@@ -437,25 +437,25 @@ async function startSSHSession(event, options) {
    // Handle chain/proxy connections
    if (hasJumpHosts) {
      const chainResult = await connectThroughChain(
-        event,
-        options,
-        jumpHosts,
-        options.hostname,
+        event, 
+        options, 
+        jumpHosts, 
+        options.hostname, 
        options.port || 22
      );
      connectionSocket = chainResult.socket;
      chainConnections = chainResult.connections;
-
+      
      connectOpts.sock = connectionSocket;
      delete connectOpts.host;
      delete connectOpts.port;
-
+      
      sendProgress(totalHops, totalHops, options.hostname, 'connecting');
    } else if (hasProxy) {
      sendProgress(1, 1, options.hostname, 'connecting');
      connectionSocket = await createProxySocket(
-        options.proxy,
-        options.hostname,
+        options.proxy, 
+        options.hostname, 
        options.port || 22
      );
      connectOpts.sock = connectionSocket;
@@ -470,7 +470,7 @@ async function startSSHSession(event, options) {
        if (hasJumpHosts || hasProxy) {
          sendProgress(totalHops, totalHops, options.hostname, 'connected');
        }
-
+        
        conn.shell(
          {
            term: "xterm-256color",
@@ -478,7 +478,7 @@ async function startSSHSession(event, options) {
            rows,
          },
          {
-            env: {
+            env: { 
              LANG: resolveLangFromCharset(options.charset),
              COLORTERM: "truecolor",
              ...(options.env || {}),
@@ -488,7 +488,7 @@ async function startSSHSession(event, options) {
            if (err) {
              conn.end();
              for (const c of chainConnections) {
-                try { c.end(); } catch { }
+                try { c.end(); } catch {}
              }
              reject(err);
              return;
@@ -507,7 +507,7 @@ async function startSSHSession(event, options) {
            let flushTimeout = null;
            const FLUSH_INTERVAL = 8; // ms - flush every 8ms for ~120fps equivalent
            const MAX_BUFFER_SIZE = 16384; // 16KB - flush immediately if buffer gets too large
-
+            
            const flushBuffer = () => {
              if (dataBuffer.length > 0) {
                const contents = event.sender;
@@ -516,7 +516,7 @@ async function startSSHSession(event, options) {
              }
              flushTimeout = null;
            };
-
+            
            const bufferData = (data) => {
              dataBuffer += data;
              // Immediate flush for large chunks
@@ -551,7 +551,7 @@ async function startSSHSession(event, options) {
              sessions.delete(sessionId);
              conn.end();
              for (const c of chainConnections) {
-                try { c.end(); } catch { }
+                try { c.end(); } catch {}
              }
            });

@@ -569,28 +569,28 @@ async function startSSHSession(event, options) {

      conn.on("error", (err) => {
        const contents = event.sender;
-
+        
        const isAuthError = err.message?.toLowerCase().includes('authentication') ||
-          err.message?.toLowerCase().includes('auth') ||
-          err.message?.toLowerCase().includes('password') ||
-          err.level === 'client-authentication';
-
+                           err.message?.toLowerCase().includes('auth') ||
+                           err.message?.toLowerCase().includes('password') ||
+                           err.level === 'client-authentication';
+        
        // Use log instead of error for auth failures (normal fallback scenario)
        if (isAuthError) {
          console.log(`${logPrefix} ${options.hostname} auth failed:`, err.message);
-          safeSend(contents, "netcatty:auth:failed", {
-            sessionId,
+          safeSend(contents, "netcatty:auth:failed", { 
+            sessionId, 
            error: err.message,
-            hostname: options.hostname
+            hostname: options.hostname 
          });
        } else {
          console.error(`${logPrefix} ${options.hostname} error:`, err.message);
        }
-
+        
        safeSend(contents, "netcatty:exit", { sessionId, exitCode: 1, error: err.message });
        sessions.delete(sessionId);
        for (const c of chainConnections) {
-          try { c.end(); } catch { }
+          try { c.end(); } catch {}
        }
        reject(err);
      });
@@ -602,7 +602,7 @@ async function startSSHSession(event, options) {
        safeSend(contents, "netcatty:exit", { sessionId, exitCode: 1, error: err.message });
        sessions.delete(sessionId);
        for (const c of chainConnections) {
-          try { c.end(); } catch { }
+          try { c.end(); } catch {}
        }
        reject(err);
      });
@@ -612,7 +612,7 @@ async function startSSHSession(event, options) {
        safeSend(contents, "netcatty:exit", { sessionId, exitCode: 0 });
        sessions.delete(sessionId);
        for (const c of chainConnections) {
-          try { c.end(); } catch { }
+          try { c.end(); } catch {}
        }
      });

@@ -731,11 +731,11 @@ async function execCommand(event, payload) {
 */
 async function generateKeyPair(event, options) {
  const { type, bits, comment } = options;
-
+  
  try {
    let keyType;
    let keyBits = bits;
-
+    
    switch (type) {
      case 'ED25519':
        keyType = 'ed25519';
@@ -751,15 +751,15 @@ async function generateKeyPair(event, options) {
        keyBits = bits || 4096;
        break;
    }
-
+    
    const result = sshUtils.generateKeyPairSync(keyType, {
      bits: keyBits,
      comment: comment || 'netcatty-generated-key',
    });
-
+    
    const privateKey = result.private;
    const publicKey = result.public;
-
+    
    return {
      success: true,
      privateKey,
@@ -783,9 +783,9 @@ async function startSSHSessionWrapper(event, options) {
    return await startSSHSession(event, options);
  } catch (err) {
    const isAuthError = err.message?.toLowerCase().includes('authentication') ||
-      err.message?.toLowerCase().includes('auth') ||
-      err.level === 'client-authentication';
-
+                       err.message?.toLowerCase().includes('auth') ||
+                       err.level === 'client-authentication';
+    
    if (isAuthError) {
      // Re-throw with a clean error to avoid Electron printing full stack trace
      // The frontend will handle this as a normal auth failure for fallback
@@ -800,74 +800,50 @@ async function startSSHSessionWrapper(event, options) {

 /**
 * Get current working directory from an active SSH session
- * This sends 'pwd' to the existing shell stream and captures the output
- * using unique markers to identify the command output boundaries
+ * This sends 'pwd' to the shell and captures the output
 */
 async function getSessionPwd(event, payload) {
  const { sessionId } = payload;
  const session = sessions.get(sessionId);
-
+  
  if (!session || !session.stream || !session.conn) {
    return { success: false, error: 'Session not found or not connected' };
  }
-
+  
  return new Promise((resolve) => {
-    const stream = session.stream;
-    const marker = `__PWD_${Date.now()}__`;
+    const conn = session.conn;
    const timeout = setTimeout(() => {
-      stream.removeListener('data', onData);
      resolve({ success: false, error: 'Timeout getting pwd' });
    }, 3000);
-
-    let buffer = '';
-
-    const onData = (data) => {
-      const str = data.toString();
-      buffer += str;
-
-      // We need to find the ACTUAL output markers, not the command echo
-      // The command echo looks like: echo '__PWD_xxx__S' && pwd && echo '__PWD_xxx__E'
-      // The actual output looks like: __PWD_xxx__S\n/path/to/dir\n__PWD_xxx__E
-      // 
-      // We look for the marker at the START of a line (after newline) to avoid the echo
-      const startMarkerRegex = new RegExp(`(?:^|[\\r\\n])${marker}S[\\r\\n]+`);
-      const endMarkerRegex = new RegExp(`[\\r\\n]${marker}E(?:[\\r\\n]|$)`);
-
-      const startMatch = buffer.match(startMarkerRegex);
-      const endMatch = buffer.match(endMarkerRegex);
-
-      if (startMatch && endMatch) {
-        const startIdx = buffer.indexOf(startMatch[0]) + startMatch[0].length;
-        const endIdx = buffer.indexOf(endMatch[0]);
-
-        if (startIdx <= endIdx) {
-          clearTimeout(timeout);
-          stream.removeListener('data', onData);
-
-          const pwdOutput = buffer.slice(startIdx, endIdx).trim();
-          console.log('[getSessionPwd] pwdOutput:', JSON.stringify(pwdOutput));
-
-          // The pwd output should be a valid absolute path
-          if (pwdOutput && pwdOutput.startsWith('/')) {
-            console.log('[getSessionPwd] Success, cwd:', pwdOutput);
-            resolve({ success: true, cwd: pwdOutput });
-          } else {
-            console.log('[getSessionPwd] Failed - invalid path:', pwdOutput);
-            resolve({ success: false, error: 'Invalid pwd output' });
-          }
-        }
+    
+    // Use exec on the existing connection to run pwd
+    conn.exec('pwd', (err, stream) => {
+      if (err) {
+        clearTimeout(timeout);
+        resolve({ success: false, error: err.message });
+        return;
      }
-    };
-
-    stream.on('data', onData);
-
-    // Send pwd command with short unique markers
-    // Using 'S' and 'E' as suffixes to make markers shorter
-    // After the command, send ANSI escape sequences to clear the output lines:
-    // \x1b[1A = move cursor up 1 line, \x1b[2K = clear entire line
-    // Clear 4 lines: the command echo, START marker, pwd output, and END marker
-    const clearLines = '\\x1b[1A\\x1b[2K\\x1b[1A\\x1b[2K\\x1b[1A\\x1b[2K\\x1b[1A\\x1b[2K';
-    stream.write(` echo '${marker}S' && pwd && echo '${marker}E' && printf '${clearLines}'\n`);
+      
+      let stdout = '';
+      stream.on('data', (data) => {
+        stdout += data.toString();
+      });
+      
+      stream.on('close', () => {
+        clearTimeout(timeout);
+        const cwd = stdout.trim().split(/\r?\n/).pop()?.trim();
+        if (cwd && cwd.startsWith('/')) {
+          resolve({ success: true, cwd });
+        } else {
+          resolve({ success: false, error: 'Invalid pwd output' });
+        }
+      });
+      
+      stream.on('error', (err) => {
+        clearTimeout(timeout);
+        resolve({ success: false, error: err.message });
+      });
+    });
  });
 }

--- a/electron/preload.cjs
+++ b/electron/preload.cjs
@@ -295,9 +295,6 @@ const api = {
  readSftp: async (sftpId, path) => {
    return ipcRenderer.invoke("netcatty:sftp:read", { sftpId, path });
  },
-  readSftpBinary: async (sftpId, path) => {
-    return ipcRenderer.invoke("netcatty:sftp:readBinary", { sftpId, path });
-  },
  writeSftp: async (sftpId, path, content) => {
    return ipcRenderer.invoke("netcatty:sftp:write", { sftpId, path, content });
  },
--- a/infrastructure/config/storageKeys.ts
+++ b/infrastructure/config/storageKeys.ts
@@ -41,7 +41,6 @@ export const STORAGE_KEY_SFTP_FILE_ASSOCIATIONS = 'netcatty_sftp_file_associatio
 // SFTP Settings
 export const STORAGE_KEY_SFTP_DOUBLE_CLICK_BEHAVIOR = 'netcatty_sftp_double_click_behavior_v1';
 export const STORAGE_KEY_SFTP_AUTO_SYNC = 'netcatty_sftp_auto_sync_v1';
-export const STORAGE_KEY_SFTP_SHOW_HIDDEN_FILES = 'netcatty_sftp_show_hidden_files_v1';

 // Archived legacy key records that are no longer supported by the app (e.g. biometric/WebAuthn/FIDO2 experiments).
 export const STORAGE_KEY_LEGACY_KEYS = 'netcatty_legacy_keys_v1';
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -15,11 +15,11 @@
    "build": "vite build",
    "preview": "vite preview",
    "start": "node electron/launch.cjs",
-    "pack": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.config.cjs --publish=never",
-    "pack:dir": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.config.cjs --dir --publish=never",
-    "pack:win": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.config.cjs --win --publish=never",
-    "pack:mac": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.config.cjs --mac --publish=never",
-    "pack:linux": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.config.cjs --linux --publish=never",
+    "pack": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.json --publish=never",
+    "pack:dir": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.json --dir --publish=never",
+    "pack:win": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.json --win --publish=never",
+    "pack:mac": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.json --mac --publish=never",
+    "pack:linux": "npm run build && cross-env NODE_OPTIONS=--disable-warning=DEP0190 electron-builder --config electron-builder.json --linux --publish=never",
    "postinstall": "electron-builder install-app-deps",
    "rebuild": "electron-builder install-app-deps",
    "lint": "eslint .",
@@ -77,4 +77,4 @@
    "vite": "^7.2.7",
    "wait-on": "^9.0.3"
  }
-}
+}
--- a/public/dmg-background.jpg
+++ b/public/dmg-background.jpg
--- a/public/dmg-fix-icon.png
+++ b/public/dmg-fix-icon.png
--- a/scripts/FixQuarantine.app/Contents/Info.plist
+++ b/scripts/FixQuarantine.app/Contents/Info.plist
@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-  <dict>
-    <key>CFBundleDevelopmentRegion</key>
-    <string>en</string>
-    <key>CFBundleDisplayName</key>
-    <string>Fix Quarantine</string>
-    <key>CFBundleExecutable</key>
-    <string>FixQuarantine</string>
-    <key>CFBundleIdentifier</key>
-    <string>com.netcatty.fixquarantine</string>
-    <key>CFBundleInfoDictionaryVersion</key>
-    <string>6.0</string>
-    <key>CFBundleName</key>
-    <string>Fix Quarantine</string>
-    <key>CFBundlePackageType</key>
-    <string>APPL</string>
-    <key>CFBundleShortVersionString</key>
-    <string>1.0.0</string>
-    <key>CFBundleVersion</key>
-    <string>1.0.0</string>
-    <key>CFBundleIconFile</key>
-    <string>FixQuarantine.icns</string>
-    <key>LSMinimumSystemVersion</key>
-    <string>10.13</string>
-  </dict>
-</plist>
--- a/scripts/FixQuarantine.app/Contents/MacOS/FixQuarantine
+++ b/scripts/FixQuarantine.app/Contents/MacOS/FixQuarantine
@@ -1,17 +0,0 @@
-#!/bin/bash
-set -e
-
-APP_PATH="/Applications/Netcatty.app"
-
-if [ ! -d "$APP_PATH" ]; then
-  /usr/bin/osascript <<'EOF'
-    display alert "Netcatty.app not found" message "Drag Netcatty.app into /Applications, then run this tool again." as critical buttons {"OK"} default button "OK"
-EOF
-  exit 1
-fi
-
-/usr/bin/osascript <<'EOF'
-  do shell script "xattr -dr com.apple.quarantine /Applications/Netcatty.app" with administrator privileges
-EOF
-
-open "$APP_PATH"
--- a/scripts/FixQuarantine.app/Contents/Resources/FixQuarantine.icns
+++ b/scripts/FixQuarantine.app/Contents/Resources/FixQuarantine.icns
--- a/scripts/gen_icns.sh
+++ b/scripts/gen_icns.sh
@@ -1,10 +0,0 @@
-# 1) 准备一张 1024x1024 PNG，例如放在 public/dmg-fix-icon.png
-# 2) 生成 iconset 并转 icns
-ICONSET="scripts/fixquarantine.iconset"
-mkdir -p "$ICONSET"
-for size in 16 32 128 256 512; do
-  sips -z "$size" "$size" public/dmg-fix-icon.png --out "$ICONSET/icon_${size}x${size}.png" >/dev/null
-  sips -z "$((size*2))" "$((size*2))" public/dmg-fix-icon.png --out "$ICONSET/icon_${size}x${size}@2x.png" >/dev/null
-done
-iconutil -c icns "$ICONSET" -o scripts/FixQuarantine.app/Contents/Resources/FixQuarantine.icns
-rm -rf $ICONSET
--- a/to-do.md
+++ b/to-do.md
@@ -0,0 +1,162 @@
+# Netcatty Feature TODO List
+
+项目地址: https://github.com/binaricat/Netcatty
+
+## 功能需求清单
+
+### 1. GB18030编码支持 🔤
+**优先级**: 高
+
+**需求描述**:
+- 支持操作文件名为GB18030编码的文件
+- 实现动态编码切换，无需断开重连即可生效
+- 解决目前市面上工具需要重新连接才能应用编码设置的问题
+
+**技术要点**:
+- SFTP文件列表的编码转换
+- 文件名编码自动检测/手动切换
+- 保持连接状态下的编码切换
+
+---
+
+### 2. SFTP的sudo提权支持 🔐
+**优先级**: 高
+
+**需求描述**:
+- 普通用户通过SFTP操作文件时支持sudo提权
+- 两种可选实现方式:
+  - **方式A (WinSCP式)**: 要求服务器端配置sudo免密码
+  - **方式B (HexHub式)**: 使用保存的密码自动完成sudo鉴权 ⭐ 推荐
+
+**技术要点**:
+- 研究HexHub的实现原理
+- 密码安全存储
+- sudo命令的SFTP封装
+- 权限提升的UI交互设计
+
+---
+
+### 3. trzsz协议支持 📁
+**优先级**: 中
+
+**需求描述**:
+- 集成trzsz文件传输协议
+- 参考项目: https://github.com/trzsz/trzsz
+- 解决electerm和tabby现有实现中的稳定性问题
+
+**已知问题**:
+- electerm和tabby支持trzsz但偶尔无法正常收发文件
+- 具体bug现象待补充
+
+**技术要点**:
+- trzsz协议完整实现
+- 文件传输的错误处理和重试机制
+- 传输进度显示
+- 大文件传输稳定性测试
+
+---
+
+### 4. 终端性能优化 ⚡
+**优先级**: 高
+
+**需求描述**:
+- 解决基于xtermjs的终端在大量滚屏时的性能问题
+- 确保高速输出场景下键盘输入的实时响应
+
+**核心问题**:
+- 大量刷屏时`Ctrl+C`信号发不出去
+- tmux切换窗口命令无响应
+- 输入延迟严重
+
+**技术要点**:
+- 终端渲染性能优化
+- 输入处理与渲染分离
+- 虚拟滚动/缓冲区管理
+- 输入队列优先级处理
+- 压力测试场景设计
+
+---
+
+### 5. X11 Forwarding支持 🖥️
+**优先级**: 中
+
+**需求描述**:
+- 支持X11图形界面转发
+- 能够在SSH连接中运行远程图形应用程序
+
+**技术要点**:
+- X11转发的SSH配置
+- 本地X Server集成或推荐
+- 跨平台兼容性（Windows/macOS/Linux）
+- 连接配置UI
+
+---
+
+### 6. Terminal到SFTP目录定位 🎯
+**优先级**: 中
+
+**需求描述**:
+- 在Terminal界面时，点击右上角按钮
+- 自动切换到SFTP视图并定位到当前工作目录
+- 实现Terminal和SFTP之间的上下文联动
+
+**已知问题**:
+- 之前尝试实现但未成功
+
+**技术要点**:
+- 获取当前shell的工作目录（`pwd`命令）
+- Terminal和SFTP视图的状态同步
+- 异步目录切换的UI反馈
+- 处理特殊路径（软链接、权限不足等）
+
+**实现思路**:
+1. 通过发送`pwd`命令获取当前目录
+2. 解析命令输出结果
+3. 触发SFTP视图切换
+4. 异步加载目标目录内容
+
+---
+
+## 开发注意事项 ⚠️
+
+### 质量要求
+- 充分的单元测试和集成测试
+- 避免"按下葫芦起了瓢"的问题
+- 每个功能都要有完整的测试用例
+
+### 性能考虑
+- 避免频繁的AI token消耗
+- 代码review和人工测试相结合
+- 建立性能基准测试
+
+### 用户体验
+- 这些都是"可以没有但有了方便很多"的功能
+- 注重细节和边界情况处理
+- 提供清晰的错误提示和操作引导
+
+---
+
+## 实现优先级建议
+
+### Phase 1 - 核心功能完善
+- [ ] GB18030编码支持
+- [ ] 终端性能优化
+- [ ] Terminal到SFTP目录定位
+
+### Phase 2 - 高级特性
+- [ ] SFTP的sudo提权支持
+- [ ] trzsz协议支持
+
+### Phase 3 - 扩展功能
+- [ ] X11 Forwarding支持
+
+---
+
+## 参考资料
+- trzsz项目: https://github.com/trzsz/trzsz
+- 竞品分析: WinSCP, HexHub, electerm, tabby
+- 技术栈: xtermjs (需要性能优化方案)
+
+---
+
+**最后更新**: 2026-01-09
Author	SHA1	Message	Date
TachibanaLolo	ec04334a21	Merge branch 'binaricat:main' into main Some checks failed build-packages / build-macos-latest (push) Has been cancelled Details build-packages / build-ubuntu-latest (push) Has been cancelled Details build-packages / build-windows-latest (push) Has been cancelled Details build-packages / release (push) Has been cancelled Details	2026-01-09 22:03:02 +08:00
TachibanaLolo	57e3641ec5	docs: add Netcatty feature todo list	2026-01-09 22:02:34 +08:00
TachibanaLolo	8258ad6e95	Merge pull request #1 from AkarinServer/feature/linux-build-support feat: add linux build support (x64/arm64)	2026-01-08 23:22:16 +08:00