fix：换一换后呢toolId处理

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

@@ -8,6 +8,7 @@ import Refresh from '@/assets/svg/refresh.svg?react'
 import { type WithAuthProps, withAuth } from '@/auth/withAuth'
 import { useAppDispatch, useAppSelector } from '@/store/hook'
 import { createConversation, setCurrentConversation, setShouldSendQuestion } from '@/store/conversationSlice'
+import { safeSessionStorageGetItem } from '@/lib/utils'
 import emptyIcon from '@/assets/empty-icon.png'
 
 interface QuestionListProps {
@@ -74,7 +75,7 @@ const QuestionListBase: React.FC<QuestionListProps & WithAuthProps> = ({
   const [isClicking, setIsClicking] = useState(false)
   const dispatch = useAppDispatch()
   const navigate = useNavigate()
-  const { currentConversationId, conversations } = useAppSelector(state => state.conversation)
+  const { currentConversationId, conversations, currentToolId } = useAppSelector(state => state.conversation)
 
   // 根据 isToolBtn 动态设置 displayCount
   const actualDisplayCount = isToolBtn ? 6 : 4
@@ -92,13 +93,20 @@ const QuestionListBase: React.FC<QuestionListProps & WithAuthProps> = ({
   const handleClick = (item: string) => {
     if (checkAuth() && !isClicking) {
       setIsClicking(true)
+      // 获取当前的 toolId，优先从 Redux 获取，其次从 sessionStorage 获取
+      const toolId = currentToolId || safeSessionStorageGetItem('currentToolId') || null
       // 优先使用当前会话，如果没有则使用第一个会话，如果都没有则创建新会话
       const targetConversationId = currentConversationId || conversations[0]?.conversationId
       if (targetConversationId) {
         // 使用现有会话
         dispatch(setCurrentConversation(targetConversationId))
         dispatch(setShouldSendQuestion(item))
-        navigate(`/chat/${targetConversationId}`)
+        // 通过 location.state 传递 toolId，避免 Chat 页面清空 toolId
+        navigate(`/chat/${targetConversationId}`, {
+          state: {
+            toolId,
+          },
+        })
       }
       else {
         // 如果没有现有会话，仍然创建新会话（向后兼容）