Merge branch 'master' of http://192.168.0.200/knowledge-base-bj/deerflow-server into ji

# Conflicts:
#	frontend-web/src/components/workspace/messages/message-list-item.tsx
#	frontend-web/src/components/workspace/messages/message-list.tsx
#	offline-backend-20260512/backend/packages/harness/deerflow/agents/lead_agent/agent.py
#	offline-backend-20260512/backend/packages/harness/deerflow/agents/lead_agent/prompt.py

frontend-web/src/core/threads/hooks.ts

@@ -694,7 +694,9 @@ export function useThreads(
         offset += response.length;
       }
 
-      return threads;
+      return threads.filter(
+        (t) => (t.metadata as Record<string, unknown> | null)?.thread_type !== "notebook",
+      );
     },
     refetchOnWindowFocus: false,
   });