feat(agent): 添加智能体状态刷新功能及API

- 在AgentPopover组件中添加刷新按钮
- 新增获取AgentState的API接口
- 优化AgentState相关计算逻辑
- 实现状态刷新功能并集成到聊天组件

server/routers/chat_router.py

@@ -882,6 +882,34 @@ async def get_agent_history(
         raise HTTPException(status_code=500, detail=f"获取智能体历史消息出错: {str(e)}")
 
 
+@chat.get("/agent/{agent_id}/state")
+async def get_agent_state(
+    agent_id: str,
+    thread_id: str,
+    current_user: User = Depends(get_required_user),
+    db: Session = Depends(get_db),
+):
+    try:
+        if not agent_manager.get_agent(agent_id):
+            raise HTTPException(status_code=404, detail=f"智能体 {agent_id} 不存在")
+
+        conv_manager = ConversationManager(db)
+        _require_user_conversation(conv_manager, thread_id, str(current_user.id))
+
+        agent = agent_manager.get_agent(agent_id)
+        graph = await agent.get_graph()
+        langgraph_config = {"configurable": {"user_id": str(current_user.id), "thread_id": thread_id}}
+        state = await graph.aget_state(langgraph_config)
+        agent_state = _extract_agent_state(getattr(state, "values", {})) if state else {}
+
+        return {"agent_state": agent_state}
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error(f"获取AgentState出错: {e}, {traceback.format_exc()}")
+        raise HTTPException(status_code=500, detail=f"获取AgentState出错: {str(e)}")
+
+
 @chat.get("/agent/{agent_id}/config")
 async def get_agent_config(agent_id: str, current_user: User = Depends(get_required_user)):
     """从YAML文件加载智能体配置（需要登录）"""

web/src/apis/agent_api.js

@@ -73,6 +73,14 @@ export const agentApi = {
    */
   getAgentHistory: (agentId, threadId) => apiGet(`/api/chat/agent/${agentId}/history?thread_id=${threadId}`),
 
+  /**
+   * 获取指定会话的 AgentState
+   * @param {string} agentId - 智能体ID
+   * @param {string} threadId - 会话ID
+   * @returns {Promise} - AgentState
+   */
+  getAgentState: (agentId, threadId) => apiGet(`/api/chat/agent/${agentId}/state?thread_id=${threadId}`),
+
   /**
    * Submit feedback for a message
    * @param {number} messageId - Message ID

web/src/components/AgentChatComponent.vue

@@ -45,8 +45,10 @@
         <div class="header__right">
           <!-- AgentState 显示按钮 - 只在智能体支持 todo 或 files 能力时显示 -->
           <AgentPopover
+            v-if="hasAgentStateContent"
             v-model:visible="agentStatePopoverVisible"
             :agent-state="currentAgentState"
+            @refresh="handleAgentStateRefresh"
           >
             <div
               class="agent-nav-btn agent-state-btn"
@@ -369,18 +371,28 @@ const currentAgentState = computed(() => {
   return currentChatId.value ? getThreadState(currentChatId.value)?.agentState || null : null;
 });
 
+const countFiles = (files) => {
+  if (!Array.isArray(files)) return 0;
+  let c = 0;
+  for (const item of files) {
+    if (item && typeof item === 'object') c += Object.keys(item).length;
+  }
+  return c;
+};
+
 const hasAgentStateContent = computed(() => {
-  const agentState = currentAgentState.value;
-  if (!agentState) return false;
-  return (agentState.todos && agentState.todos.length > 0) ||
-         (agentState.files && Object.keys(agentState.files).length > 0);
+  const s = currentAgentState.value;
+  if (!s) return false;
+  const todoCount = Array.isArray(s.todos) ? s.todos.length : 0;
+  const fileCount = countFiles(s.files);
+  return todoCount > 0 || fileCount > 0;
 });
 
 const totalAgentStateItems = computed(() => {
-  const agentState = currentAgentState.value;
-  if (!agentState) return 0;
-  const todoCount = agentState.todos ? agentState.todos.length : 0;
-  const fileCount = agentState.files ? Object.keys(agentState.files).length : 0;
+  const s = currentAgentState.value;
+  if (!s) return 0;
+  const todoCount = Array.isArray(s.todos) ? s.todos.length : 0;
+  const fileCount = countFiles(s.files);
   return todoCount + fileCount;
 });
 
@@ -756,6 +768,15 @@ const fetchThreadMessages = async ({ agentId, threadId, delay = 0 }) => {
   }
 };
 
+const fetchAgentState = async (agentId, threadId) => {
+  if (!agentId || !threadId) return;
+  try {
+    const res = await agentApi.getAgentState(agentId, threadId);
+    const ts = getThreadState(threadId);
+    if (ts) ts.agentState = res.agent_state || null;
+  } catch (error) {}
+};
+
 const loadThreadAttachments = async (threadId, { silent = false } = {}) => {
   if (!threadId) return;
   try {
@@ -954,6 +975,7 @@ const selectChat = async (chatId) => {
   try {
     await fetchThreadMessages({ agentId: currentAgentId.value, threadId: chatId });
     await loadThreadAttachments(chatId, { silent: true });
+    await fetchAgentState(currentAgentId.value, chatId);
   } catch (error) {
     handleChatError(error, 'load');
   } finally {
@@ -1240,6 +1262,11 @@ const toggleSidebar = () => {
 };
 const openAgentModal = () => emit('open-agent-modal');
 
+const handleAgentStateRefresh = async () => {
+  if (!currentAgentId.value || !currentChatId.value) return;
+  await fetchAgentState(currentAgentId.value, currentChatId.value);
+};
+
 // ==================== HELPER FUNCTIONS ====================
 const getLastMessage = (conv) => {
   if (!conv?.messages?.length) return null;

web/src/components/AgentPopover.vue

@@ -25,6 +25,7 @@
           >
             文件 ({{ fileCount }})
           </button>
+          <a-button type="text" class="refresh-btn" @click="emitRefresh">刷新</a-button>
         </div>
         <div class="tab-content">
           <!-- Todo Display -->
@@ -103,7 +104,7 @@ const props = defineProps({
   }
 });
 
-const emit = defineEmits(['update:visible']);
+const emit = defineEmits(['update:visible', 'refresh']);
 
 const activeTab = ref('todos');
 const modalVisible = ref(false);
@@ -209,6 +210,10 @@ const closeModal = () => {
   currentFile.value = null;
   currentFilePath.value = '';
 };
+
+const emitRefresh = () => {
+  emit('refresh');
+};
 </script>
 
 <style scoped lang="less">
@@ -223,6 +228,7 @@ const closeModal = () => {
   display: flex;
   border-bottom: 1px solid var(--gray-200);
   position: relative;
+  align-items: center;
 }
 
 .tab {
@@ -496,4 +502,10 @@ const closeModal = () => {
     }
   }
 }
-</style>
+
+.refresh-btn {
+  margin-left: auto;
+  color: var(--gray-700);
+}
+
+</style>