fix terminal popup release behavior (#1403)

domain/systemManager/dockerShell.ts

@@ -3,15 +3,17 @@ export function sanitizeDockerContainerId(id: string): string {
   return String(id || '').replace(/[^a-zA-Z0-9]/g, '').slice(0, 64);
 }
 
+const CLEAR_STARTUP_OUTPUT = "printf '\\033[H\\033[2J\\033[3J';";
+
 /** Interactive shell into a container — prefer bash, fall back to sh. */
 export function buildDockerExecShellCommand(containerId: string): string {
   const safeId = sanitizeDockerContainerId(containerId);
   if (!safeId) return 'echo "Invalid container id"';
-  return `docker exec -it ${safeId} sh -c 'command -v bash >/dev/null 2>&1 && exec bash || exec sh'`;
+  return `${CLEAR_STARTUP_OUTPUT} exec docker exec -it ${safeId} sh -c 'command -v bash >/dev/null 2>&1 && exec bash || exec sh'`;
 }
 
 export function buildDockerLogsCommand(containerId: string): string {
   const safeId = sanitizeDockerContainerId(containerId);
   if (!safeId) return 'echo "Invalid container id"';
-  return `docker logs -f --tail 200 ${safeId}`;
+  return `${CLEAR_STARTUP_OUTPUT} exec docker logs -f --tail 200 ${safeId}`;
 }

domain/systemManager/tmuxShell.ts

@@ -3,9 +3,11 @@ export function shQuote(str: string): string {
   return `'${String(str).replace(/'/g, "'\"'\"'")}'`;
 }
 
+const CLEAR_STARTUP_OUTPUT = "printf '\\033[H\\033[2J\\033[3J';";
+
 export function buildTmuxAttachCommand(sessionName: string, windowIndex?: number): string {
   const target = windowIndex !== undefined
     ? `${shQuote(sessionName)}:${windowIndex}`
     : shQuote(sessionName);
-  return `tmux attach -t ${target}`;
+  return `${CLEAR_STARTUP_OUTPUT} exec tmux attach -t ${target}`;
 }

domain/systemManager/types.ts

@@ -121,9 +121,17 @@ export type DockerImageManageAction =
 
 export type SystemManagerSubTab = 'processes' | 'tmux' | 'docker';
 
+export interface TerminalPopupIcon {
+  kind: 'image';
+  src: string;
+  backgroundColor?: string;
+  alt?: string;
+}
+
 export interface TerminalPopupPayload {
   popupId?: string;
   title: string;
+  icon?: TerminalPopupIcon;
   parentSessionId: string;
   sourceSession: import('../../types').TerminalSession;
   startupCommand: string;