chore: remove unused Alert import in VFolderNodes.tsx

Pre-existing unused import on main that the strict pre-commit hook (eslint ./src --max-warnings=0) flags, blocking unrelated commits. Split out as its own change to keep FR-26 scope clean.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: ironAiken2

react/src/components/VFolderNodes.tsx

@@ -21,7 +21,7 @@ import VFolderNodeIdenticon from './VFolderNodeIdenticon';
 import VFolderPermissionCell from './VFolderPermissionCell';
 import { DeleteFilled, DeleteOutlined, UserOutlined } from '@ant-design/icons';
 import { useToggle } from 'ahooks';
-import { Alert, App, theme, Typography } from 'antd';
+import { App, theme, Typography } from 'antd';
 import {
   filterOutNullAndUndefined,
   BAIEndpointsIcon,