feat(chat): 实现todo_write完成后自动刷新待办列表

- 在useChat中添加sendMessage引用，支持从handleServerMessage内部发送命令
- 在App.tsx中通过useEffect将sendMessage注入useChat
- 子代理todo_write完成后自动发送请求刷新对应待办列表命令
- 主视图todo_write完成后自动刷新待办列表，支持子代理和主任务区分
- 优化消息处理逻辑，避免不同子代理消息混淆

web/src/App.tsx

@@ -75,6 +75,7 @@ function App() {
     handleCommand,
     clearMessages,
     handleServerMessage,
+    setSendMessage,
     selectTopic,
     createTopic,
     switchTopic,
@@ -92,6 +93,11 @@ function App() {
     onMessage: handleServerMessage,
   })
 
+  // 将 sendMessage 注入到 useChat，供 handleServerMessage 内部发送命令
+  useEffect(() => {
+    setSendMessage(sendMessage)
+  }, [setSendMessage, sendMessage])
+
   // ---- 主题状态 ----
 
   const [memoryPanelOpen, setMemoryPanelOpen] = useState(() => {

web/src/hooks/useChat.ts

@@ -29,6 +29,7 @@ import type {
   ChannelList,
   StreamDelta,
   StreamEnd,
+  WsInbound,
 } from '../types/protocol'
 
 // 简化后的层级状态
@@ -66,6 +67,7 @@ interface UseChatReturn {
   handleCommand: (command: Command) => void
   clearMessages: () => void
   handleServerMessage: (message: WsOutbound) => void
+  setSendMessage: (fn: (msg: WsInbound) => boolean) => void
 
   // Topic 方法
   selectTopic: (topicId: string) => void
@@ -171,6 +173,12 @@ export function useChat(): UseChatReturn {
   const selectedTopicRef = useRef<string | null>(null)
   const pendingNewTopicRef = useRef(false)
 
+  // Ref to send commands from within handleServerMessage (set by App.tsx)
+  const sendMessageRef = useRef<((msg: WsInbound) => boolean) | null>(null)
+  const setSendMessage = useCallback((fn: (msg: WsInbound) => boolean) => {
+    sendMessageRef.current = fn
+  }, [])
+
   const isConnected = useMemo(() => connectionId !== null, [connectionId])
   const selectedSession = useMemo(
     () => sessions.find(s => s.session_id === selectedSessionId) ?? null,
@@ -377,6 +385,11 @@ export function useChat(): UseChatReturn {
       const msgSubagentTaskId = getSubagentTaskId(message)
       if (msgSubagentTaskId && msgSubagentTaskId === currentSubAgentView.taskId) {
         appendToSubAgentViewMessage(message)
+        // 子代理 todo_write 完成后自动刷新待办列表
+        if (message.type === 'tool_result' && (message as ToolResult).tool_name === 'todo_write') {
+          const refreshCmd = requestSubAgentTodoList(currentSubAgentView.taskId)
+          sendMessageRef.current?.({ type: 'command', payload: JSON.stringify(refreshCmd) })
+        }
         return
       }
       // 丢弃其他子智能体的消息，避免 fall through 到主消息处理
@@ -694,6 +707,14 @@ export function useChat(): UseChatReturn {
         // 忽略这些消息
         break
     }
+
+    // 主视图 todo_write 完成后自动刷新待办列表
+    if (message.type === 'tool_result' && (message as ToolResult).tool_name === 'todo_write') {
+      const refreshCmd = subAgentViewRef.current?.taskId
+        ? requestSubAgentTodoList(subAgentViewRef.current.taskId)
+        : requestTodoList()
+      sendMessageRef.current?.({ type: 'command', payload: JSON.stringify(refreshCmd) })
+    }
   }, [])
 
   const handleMessage = useCallback((content: string, attachments?: Attachment[]) => {
@@ -938,6 +959,7 @@ export function useChat(): UseChatReturn {
     handleCommand,
     clearMessages,
     handleServerMessage,
+    setSendMessage,
     selectTopic,
     createTopic,
     switchTopic,