fix(sessions): preflight every worktree move

packages/ui/src/components/layout/MainLayout.tsx

@@ -11,6 +11,7 @@ import { HelpDialog } from '../ui/HelpDialog';
 import { OpenCodeStatusDialog } from '../ui/OpenCodeStatusDialog';
 import { SessionSidebar } from '@/components/session/SessionSidebar';
 import { SessionDialogs } from '@/components/session/SessionDialogs';
+import { SessionWorktreeMoveConfirmDialog } from '@/components/session/sidebar/SessionWorktreeMoveConfirmDialog';
 import { ScheduledTasksDialog } from '@/components/session/ScheduledTasksDialog';
 import { ArchiveView } from '@/components/views/ArchiveView';
 import { WorktreesView } from '@/components/views/WorktreesView';
@@ -19,6 +20,11 @@ import { MultiRunLauncher } from '@/components/multirun';
 
 import { useUIStore } from '@/stores/useUIStore';
 import { useSessionUIStore } from '@/sync/session-ui-store';
+import {
+  cancelSessionTreeMove,
+  confirmSessionTreeMove,
+  useSessionTreeMoveConfirmation,
+} from '@/lib/worktrees/sessionWorktreeMove';
 import { useUpdatePolling } from '@/hooks/useUpdatePolling';
 import { useDeviceInfo } from '@/lib/device';
 import { cn } from '@/lib/utils';
@@ -80,6 +86,8 @@ export const MainLayout: React.FC = () => {
 
     useUpdatePolling();
 
+    const sessionTreeMoveConfirmation = useSessionTreeMoveConfirmation();
+
     React.useEffect(() => {
         const previous = useUIStore.getState().isMobile;
         if (previous !== isMobile) {
@@ -97,6 +105,12 @@ export const MainLayout: React.FC = () => {
                 <HelpDialog />
                 <OpenCodeStatusDialog />
                 <SessionDialogs />
+                <SessionWorktreeMoveConfirmDialog
+                    value={sessionTreeMoveConfirmation}
+                    onMoveSessionOnly={() => confirmSessionTreeMove(false)}
+                    onMoveAllChanges={() => confirmSessionTreeMove(true)}
+                    onCancel={cancelSessionTreeMove}
+                />
 
                 {/* Persistent top-left controls (toggle + project actions) that
                     stay put while the sidebar/header animate beneath them. */}