fix: workspace — removed topbar buttons, unified modals, parent_id support

- Topbar: removed New File/New Folder buttons + 'Files' label
- Breadcrumb: Workspace / work1 instead of work1 / Files
- Modals: single shared create modal with focus auto, @keydown.enter
- parent_id param: recursive folder/file creation inside folders
- Sidebar buttons use same POST /api/local-workspace/items
- newPageInWorkspace/newFolderInWorkspace now both use unified API

app/routers/dashboard.py

@@ -545,14 +545,15 @@ async def create_local_workspace_item(request: Request):
     body = await request.json()
     name = body.get("name", "Untitled").strip()
     item_type = body.get("type", "page")
+    parent_id = body.get("parent_id")
     ws = _get_active_workspace(request)
     ws_id = ws["id"] if ws else None
     section = 'Workspace' if item_type == 'folder' else 'Private'
     with get_conn() as conn:
         cursor = conn.execute(
-            "INSERT INTO pages (workspace, workspace_id, title, content, content_format, parent_section) "
-            "VALUES ('', ?, ?, '', 'blocks', ?)",
-            (ws_id, name, section),
+            "INSERT INTO pages (workspace, workspace_id, title, content, content_format, parent_section, parent_id) "
+            "VALUES ('', ?, ?, '', 'blocks', ?, ?)",
+            (ws_id, name, section, parent_id),
         )
         conn.commit()
         pid = cursor.lastrowid