fix(workspace): dedicated reconnecting websocket, restore editing lock blocking & amber banner, broadcast live doc/folder moves

frontend/src/lib/api.ts

@@ -434,6 +434,13 @@ export const api = {
     );
   },
 
+  async moveFolder(sourcePath: string, targetParentPath: string): Promise<{ newPath: string; movedDocIds: string[] }> {
+    return request<{ newPath: string; movedDocIds: string[] }>('/api/v1/folders/move', {
+      method: 'POST',
+      body: JSON.stringify({ sourcePath, targetParentPath }),
+    });
+  },
+
   // --- WORKSPACE SHARED FOLDERS ---
   async getSharedFolders(): Promise<SharedFolder[]> {
     const res = await request<SharedFolder[]>('/api/v1/workspace/folders/shared');