fix: 修复历史记录也会触发自动提交的问题，历史记录不渲染ChatAnswerAttachment

src/pages/Chat/components/ChatItem/ChatAnswerShower.tsx

@@ -28,7 +28,9 @@ export const ChatAnswerShower: React.FC<ChatAnswerShowerProps> = ({ answer, isLa
           </MarkdownDetail>
         </div>
       )}
-      {answer.cardList && answer.cardList?.length !== 0 && (
+      {/* 历史记录（isShow === true）且 firstQaFlag === true 时，不渲染 ChatAnswerAttachment（避免触发自动提交）
+          流式返回的新记录（isShow === false）正常渲染 */}
+      {answer.cardList && answer.cardList?.length !== 0 && !(answer.isShow === true && answer.firstQaFlag === true) && (
         <ChatAnswerAttachment
           onSubmitQuestion={onSubmitQuestion}
           isLastAnswer={isLastAnswer}