fix：清除会话逻辑&&清空后欢迎语

src/pages/ChatTactics/TacticsChat.tsx

@@ -32,6 +32,8 @@ export const TacticsChat: React.FC = () => {
   const [allItems, setAllItems] = useState<ChatRecord[]>([])
   const [historyDividerIndex, setHistoryDividerIndex] = useState<number | null>(null)
   const [historyDividerTime, setHistoryDividerTime] = useState<string | null>(null)
+  const [hasCleared, setHasCleared] = useState(false)
+  const [showClearConfirm, setShowClearConfirm] = useState(false)
   const dispatch = useAppDispatch()
   const {
     shouldSendQuestion: shouldSendQuestionFromState,
@@ -291,25 +293,21 @@ export const TacticsChat: React.FC = () => {
 
     const shouldSendQuestion = extra?.includeQuestion !== false
 
+    // 去除缓存中可能存在的 from 字段，避免作为参数传递
+    const { from: _omitFrom, ...safeTacticsMeta } = tacticsMeta || {}
+
     const requestBody: Record<string, any> = {
       conversationId: currentIdRef.current,
       stream: true,
       productCode,
       toolId: resolvedToolId,
-      ...(tacticsMeta || {}),
+      ...safeTacticsMeta,
       ...(extra?.busiType ? { busiType: extra.busiType } : {}),
       ...(extra?.recordType ? { recordType: extra.recordType } : {}),
     }
     if (shouldSendQuestion) {
       requestBody.question = question ?? ''
     }
-
-    // eslint-disable-next-line no-console
-    console.log('[TacticsChat] handleSubmitQuestion:requesting', {
-      fetchUrl,
-      body: requestBody,
-    })
-
     fetchStreamResponse(
       fetchUrl,
       requestBody,
@@ -332,6 +330,8 @@ export const TacticsChat: React.FC = () => {
 
         // 正常的stream数据
         if (msg?.type === 'DATA' && msg?.content?.code === '00000000') {
+          // eslint-disable-next-line no-console
+          console.log('[TacticsChat] handleSubmitQuestion:success', msg)
           handleStreamMesageData(msg, question || '')
         }
         if (msg?.type === 'DATA' && msg?.content?.code === '01010005') {
@@ -379,10 +379,12 @@ export const TacticsChat: React.FC = () => {
         return item
       })
       setAllItems(processedMessages)
+      setHasCleared(false)
     }
     catch {
       // 如果获取失败，至少显示欢迎语
       setAllItems([{ role: 'system' } as ChatRecord])
+      setHasCleared(false)
       setHistoryDividerIndex(null)
       setHistoryDividerTime(null)
     }
@@ -399,6 +401,7 @@ export const TacticsChat: React.FC = () => {
   const handleClearRecord = useCallback(async () => {
     if (!currentIdRef.current)
       return
+    setShowClearConfirm(false)
     try {
       await dispatch(deleteTacticsConversations([currentIdRef.current])).unwrap()
       // 停止正在进行的请求
@@ -408,6 +411,7 @@ export const TacticsChat: React.FC = () => {
       }
       // 清空对话列表，只保留欢迎语
       setAllItems([{ role: 'system' } as ChatRecord])
+      setHasCleared(true)
       setHistoryDividerIndex(null)
       setHistoryDividerTime(null)
       dispatch(
@@ -433,6 +437,14 @@ export const TacticsChat: React.FC = () => {
     }
   }, [dispatch, navigate, handleSubmitQuestion])
 
+  const handleCancelClear = useCallback(() => {
+    setShowClearConfirm(false)
+  }, [])
+
+  const handleOpenClearConfirm = useCallback(() => {
+    setShowClearConfirm(true)
+  }, [])
+
   useEffect(() => {
     if (id) {
       // 停止之前的请求
@@ -533,7 +545,7 @@ export const TacticsChat: React.FC = () => {
       <div className="flex justify-end items-center gap-[16px] px-[16px] pt-[16px] pb-[8px]">
         <button
           type="button"
-          onClick={handleClearRecord}
+          onClick={handleOpenClearConfirm}
           className="flex items-center gap-[4px] text-[#4A90E2] text-[14px] hover:opacity-80 transition-opacity cursor-pointer bg-transparent border-none outline-none"
         >
           <DeleteIcon className="w-[16px] h-[16px] text-[#B2B8C1]" />
@@ -549,6 +561,29 @@ export const TacticsChat: React.FC = () => {
         </button>
       </div>
       <div className={`${styles.chatPage} relative flex flex-col h-full`}>
+        {showClearConfirm && (
+          <div className="fixed inset-0 z-[2000] flex items-center justify-center bg-black/40 px-4">
+            <div className="bg-white rounded-[12px] p-6 w-full max-w-[360px] shadow-lg">
+              <div className="text-[16px] font-medium text-[#1F2937] mb-4">是否确定清空历史记录？</div>
+              <div className="flex justify-end gap-3">
+                <button
+                  type="button"
+                  onClick={handleCancelClear}
+                  className="px-4 py-2 rounded-[8px] border border-[#E5E7EB] text-[#4B5563] hover:bg-[#F9FAFB]"
+                >
+                  取消
+                </button>
+                <button
+                  type="button"
+                  onClick={handleClearRecord}
+                  className="px-4 py-2 rounded-[8px] bg-[#2563EB] text-white hover:opacity-90"
+                >
+                  确定
+                </button>
+              </div>
+            </div>
+          </div>
+        )}
         <div className={`${styles.content} flex-1 overflow-hidden flex flex-col`}>
           {isLoading && (
             <div className="w-full h-full flex justify-center items-center">
@@ -584,7 +619,7 @@ export const TacticsChat: React.FC = () => {
                       <div
                         className="w-full chatItem mx-auto"
                       >
-                        {record.role === 'system' && <TacticsWelcome />}
+        {record.role === 'system' && <TacticsWelcome cleared={hasCleared} />}
                         {record.role === 'user' && <ChatItemUser record={record} />}
                         {record.role === 'ai' && (
                           <ChatAnswerBox

src/pages/ChatTactics/components/TacticsWelcome/index.tsx

@@ -4,9 +4,15 @@ import { motion } from 'framer-motion'
 import AvatarBot from '@/assets/avatarBot.png'
 import AIIcon from '@/assets/ai-icon.png'
 
-export const TacticsWelcome: React.FC = () => {
+interface TacticsWelcomeProps {
+  cleared?: boolean
+}
+
+export const TacticsWelcome: React.FC<TacticsWelcomeProps> = ({ cleared }) => {
   const viteOutputObj = import.meta.env.VITE_OUTPUT_OBJ || 'open'
-  const welcomeText = '正在为您分析策略，请耐心等待一会儿哦～'
+  const welcomeText = cleared
+    ? '暂无分析记录，点击右上方按钮开始新的分析吧!'
+    : '正在为您分析策略，请耐心等待一会儿哦～'
 
   return (
     <div className="chatWelcomeContainer w-full">