- Add document-upload-popup.tsx with tabs for B系统/A系统/Y系统/XWT/upload - Add network-actor.tsx for XWT search tab - Add empty.tsx for empty state - Refactor SourcesDialog: left panel becomes single "上传来源" button that opens new popup - Wire DocumentUploadDialogProvider around StudioNotebookDetailPage Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>