fix(agent): 修复智能体重复初始化和工具重复加载问题

- 修复智能体初始化时的并发问题，添加isInitializing状态防止重复初始化
- 优化工具加载逻辑，避免重复请求
- 移除AgentView中多余的watch监听

Author: xerrors

web/src/components/AgentChatComponent.vue

@@ -991,7 +991,7 @@ const initAll = async () => {
 onMounted(async () => {
   await initAll();
   scrollController.enableAutoScroll();
-  });
+});
 
 watch(currentAgentId, async (newAgentId, oldAgentId) => {
   if (newAgentId !== oldAgentId) {

web/src/components/AgentConfigSidebar.vue

@@ -423,6 +423,10 @@ const getToolNameById = (toolId) => {
 
 const loadAvailableTools = async () => {
   try {
+    // 避免重复加载，如果已经有工具就直接返回
+    if (availableTools.value && Object.keys(availableTools.value).length > 0) {
+      return;
+    }
     await agentStore.fetchTools();
   } catch (error) {
     console.error('加载工具列表失败:', error);

web/src/stores/agent.js

@@ -33,6 +33,7 @@ export const useAgentStore = defineStore('agent', () => {
 
   // 初始化状态
   const isInitialized = ref(false)
+  const isInitializing = ref(false)
 
   // ==================== 计算属性 ====================
   const selectedAgent = computed(() =>
@@ -76,6 +77,10 @@ export const useAgentStore = defineStore('agent', () => {
   async function initialize() {
     if (isInitialized.value) return
 
+    // 防止并发初始化
+    if (isInitializing.value) return
+    isInitializing.value = true
+
     try {
       await fetchAgents()
       await fetchDefaultAgent()
@@ -111,6 +116,8 @@ export const useAgentStore = defineStore('agent', () => {
       console.error('Failed to initialize agent store:', err)
       handleChatError(err, 'initialize')
       error.value = err.message
+    } finally {
+      isInitializing.value = false
     }
   }
 
@@ -321,6 +328,7 @@ export const useAgentStore = defineStore('agent', () => {
     isLoadingAgentDetail.value = false
     error.value = null
     isInitialized.value = false
+    isInitializing.value = false
   }
 
   return {

web/src/views/AgentView.vue

@@ -165,13 +165,6 @@ const loadAgentConfig = async () => {
   }
 };
 
-// 监听智能体选择变化
-watch(
-  () => selectedAgentId.value,
-  () => {
-    loadAgentConfig();
-  }
-);
 
 // 选择智能体（使用store方法）
 const selectAgent = (agentId) => {