remove support for workspace extensions and migrations (#11324)

packages/cli/src/ui/AppContainer.tsx

@@ -86,7 +86,6 @@ import { ConsolePatcher } from './utils/ConsolePatcher.js';
 import { registerCleanup, runExitCleanup } from '../utils/cleanup.js';
 import { useMessageQueue } from './hooks/useMessageQueue.js';
 import { useAutoAcceptIndicator } from './hooks/useAutoAcceptIndicator.js';
-import { useWorkspaceMigration } from './hooks/useWorkspaceMigration.js';
 import { useSessionStats } from './contexts/SessionContext.js';
 import { useGitBranchName } from './hooks/useGitBranchName.js';
 import { useExtensionUpdates } from './hooks/useExtensionUpdates.js';
@@ -448,13 +447,6 @@ Logging in with Google... Please restart Gemini CLI to continue.
   const { isModelDialogOpen, openModelDialog, closeModelDialog } =
     useModelCommand();
 
-  const {
-    showWorkspaceMigrationDialog,
-    workspaceExtensions,
-    onWorkspaceMigrationDialogOpen,
-    onWorkspaceMigrationDialogClose,
-  } = useWorkspaceMigration(settings);
-
   const { toggleVimEnabled } = useVimMode();
 
   const slashCommandActions = useMemo(
@@ -1073,7 +1065,6 @@ Logging in with Google... Please restart Gemini CLI to continue.
   const nightly = props.version.includes('nightly');
 
   const dialogsVisible =
-    showWorkspaceMigrationDialog ||
     shouldShowIdePrompt ||
     isFolderTrustDialogOpen ||
     !!shellConfirmationRequest ||
@@ -1151,8 +1142,6 @@ Logging in with Google... Please restart Gemini CLI to continue.
       messageQueue,
       queueErrorMessage,
       showAutoAcceptIndicator,
-      showWorkspaceMigrationDialog,
-      workspaceExtensions,
       currentModel,
       userTier,
       proQuotaRequest,
@@ -1233,8 +1222,6 @@ Logging in with Google... Please restart Gemini CLI to continue.
       messageQueue,
       queueErrorMessage,
       showAutoAcceptIndicator,
-      showWorkspaceMigrationDialog,
-      workspaceExtensions,
       userTier,
       proQuotaRequest,
       contextFileNames,
@@ -1293,8 +1280,6 @@ Logging in with Google... Please restart Gemini CLI to continue.
       refreshStatic,
       handleFinalSubmit,
       handleClearScreen,
-      onWorkspaceMigrationDialogOpen,
-      onWorkspaceMigrationDialogClose,
       handleProQuotaChoice,
       setQueueErrorMessage,
       popAllMessages,
@@ -1320,8 +1305,6 @@ Logging in with Google... Please restart Gemini CLI to continue.
       refreshStatic,
       handleFinalSubmit,
       handleClearScreen,
-      onWorkspaceMigrationDialogOpen,
-      onWorkspaceMigrationDialogClose,
       handleProQuotaChoice,
       setQueueErrorMessage,
       popAllMessages,