feat：没有记录时不允许清空

src/pages/ChatTactics/TacticsChat.tsx

@@ -23,6 +23,7 @@ import { useAppDispatch, useAppSelector } from '@/store/hook'
 import ScrollBtoIcon from '@/assets/svg/scrollBto.svg?react'
 import { setIsAsking } from '@/store/chatSlice'
 import SdreamLoading from '@/components/SdreamLoading'
+import useToast from '@/hooks/useToast'
 
 export const TacticsChat: React.FC = () => {
   const { id } = useParams<{ id: string }>()
@@ -60,6 +61,7 @@ export const TacticsChat: React.FC = () => {
   const isAsking = useAppSelector((state: RootState) => state.chat.isAsking)
   const [searchParams] = useSearchParams()
   const hasFetched = useRef(false)
+  const showToast = useToast()
   // 使用 useLocalStorageState 管理 token，与原有逻辑保持一致
   const [token, setToken] = useLocalStorageState<string | undefined>('__TOKEN__', {
     defaultValue: '',
@@ -664,8 +666,18 @@ export const TacticsChat: React.FC = () => {
   }, [])
 
   const handleOpenClearConfirm = useCallback(() => {
+    // 检查是否有对话记录（排除 system 角色）
+    const hasConversationRecords = allItems.some(item => item.role !== 'system')
+    // 检查是否有历史记录
+    const hasHistoryRecords = hasHistory === true
+    // 如果两者都没有，显示提示并返回
+    if (!hasConversationRecords && !hasHistoryRecords) {
+      showToast('暂无记录', 'default')
+      return
+    }
+    // 有记录时正常打开确认弹窗
     setShowClearConfirm(true)
-  }, [])
+  }, [allItems, hasHistory, showToast])
 
   useEffect(() => {
     if (id) {

src/pages/ChatTactics/TacticsHome.tsx

@@ -204,8 +204,6 @@ export const TacticsHome: React.FC = () => {
     login()
   }, [])
 
-  // 处理清除记录
-
   return (
     <div
       className={styles.homePage}