fix: reset chat tool id state

src/pages/Chat/Chat.tsx

@@ -12,7 +12,7 @@ import { ChatEditor } from '@/components/ChatEditor'
 import type { ChatRecord } from '@/types/chat'
 import { fetchUserQaRecordPage } from '@/api/conversation'
 import { fetchCheckTokenApi, fetchStreamResponse } from '@/api/chat'
-import { fetchToolList } from '@/api/home'
+import { fetchEfficiencyQuestionList, fetchToolList } from '@/api/home'
 // import { mockFetchToolList } from '@/api/mock/home'
 import { clearCurrentToolId, clearShouldSendQuestion, fetchConversations, setCurrentToolId } from '@/store/conversationSlice'
 import { getUserRolesForApi } from '@/lib/utils'
@@ -25,9 +25,11 @@ import SdreamLoading from '@/components/SdreamLoading'
 export const Chat: React.FC = () => {
   const { id } = useParams<{ id: string }>()
   const location = useLocation()
-  const [searchParams] = useSearchParams()
+  const [searchParams, setSearchParams] = useSearchParams()
   // 优先从 URL 查询参数读取 toolId（刷新后仍能保留），其次从 location.state 读取
-  const toolIdFromUrl = searchParams.get('toolId')
+  const rawToolIdFromUrl = searchParams.get('toolId')
+  const shouldForceClearUrlToolId = Boolean(rawToolIdFromUrl)
+  const toolIdFromUrl = shouldForceClearUrlToolId ? null : rawToolIdFromUrl
   // 添加调试日志，查看 location.state 的实际值
   // eslint-disable-next-line no-console
   console.log('[Chat] location.state:', location.state)
@@ -52,6 +54,72 @@ export const Chat: React.FC = () => {
   const [currentToolName, setCurrentToolName] = useState<string | undefined>(undefined)
   // 使用 ref 保存从 location.state 传递的 toolId，避免被异步操作覆盖
   const toolIdFromStateRef = useRef<string | null | undefined>(undefined)
+  // 若链接中带有 toolId，进入页面后强制清空（避免沿用历史链接参数）
+  useEffect(() => {
+    if (!shouldForceClearUrlToolId)
+      return
+
+    // 1. 清除 Redux 中的 currentToolId
+    dispatch(clearCurrentToolId())
+    // 2. 清除 sessionStorage 中的 currentToolId
+    sessionStorage.removeItem('currentToolId')
+    // 3. 清除 URL 中的 toolId 参数（如果存在）
+    const currentUrl = new URL(window.location.href)
+    if (currentUrl.searchParams.has('toolId')) {
+      currentUrl.searchParams.delete('toolId')
+      window.history.replaceState({}, '', currentUrl.toString())
+    }
+    // 4. 触发自定义事件，通知 ChatEditor 强制重置为通用模式
+    window.dispatchEvent(new CustomEvent('forceResetToGeneralMode'))
+
+    // 同步 react-router 的 searchParams 状态
+    const newParams = new URLSearchParams(searchParams)
+    newParams.delete('toolId')
+    setSearchParams(newParams, { replace: true })
+  }, [searchParams, setSearchParams, shouldForceClearUrlToolId, dispatch])
+  // 调试用：展示当前页面链接与缓存中的 toolId
+  const [debugInfo, setDebugInfo] = useState<{ href: string, sessionToolId: string | null }>({
+    href: '',
+    sessionToolId: null,
+  })
+
+  // 首次进入 /chat/:id 时，拉取一次通用模式下的常见问题（toolId: ''），后续仍按现有逻辑走
+  useEffect(() => {
+    ;(async () => {
+      try {
+        // 仅在本标签页首次进入时调用一次
+        if (sessionStorage.getItem('__INITIAL_FAQ_LOADED__'))
+          return
+        sessionStorage.setItem('__INITIAL_FAQ_LOADED__', 'true')
+        await fetchEfficiencyQuestionList({ toolId: '' })
+      }
+      catch (error) {
+        console.error('初始化通用模式常见问题失败:', error)
+      }
+    })()
+  }, [])
+
+  // 进入聊天页时，同步当前链接和缓存中的 toolId 到页面上展示
+  useEffect(() => {
+    try {
+      const href = window.location.href
+      const sessionToolId = sessionStorage.getItem('currentToolId')
+      setDebugInfo({
+        href,
+        sessionToolId,
+      })
+    }
+    catch (error) {
+      console.error('同步页面链接与缓存信息失败:', error)
+    }
+  }, [])
+
+  useEffect(() => {
+    if (!debugInfo.href && !debugInfo.sessionToolId)
+      return
+    // eslint-disable-next-line no-console
+    console.debug('[Chat] 当前链接 / 缓存 toolId:', debugInfo)
+  }, [debugInfo])
 
   // 历史记录点击时将 toolId 通过路由 state 传入，优先使用该值快速同步高亮
   useEffect(() => {

src/pages/Home/components/QuestionList/QuestionList.tsx

@@ -155,7 +155,7 @@ const QuestionListBase: React.FC<QuestionListProps & WithAuthProps> = ({
         )
 : null}
       </h3>
-      {isLoaded && questions && questions.length === 0
+      {((isLoaded && questions && questions.length === 0) || (isToolBtn && (!questions || questions.length === 0)))
         ? (
             <div className="mt-[34px] flex flex-col items-center justify-center h-[200px]">
               <div className="flex flex-col items-center">