fix: chatitem animation (#6965)

* fix: chatitem animation

* fix: chatitem animation

projects/app/src/components/core/chat/ChatContainer/ChatBox/components/ChatItem.tsx

@@ -126,8 +126,8 @@ const AIContentCard = React.memo(function AIContentCard({
   onOpenCiteModal: (e?: OnOpenCiteModalProps) => void;
 }) {
   const lastValue = chatValue[chatValue.length - 1];
-  const lastIsText = lastValue?.text;
-  const lastIsReasoning = lastValue?.reasoning;
+  const lastHasText = !!lastValue?.text?.content?.trim();
+  const lastHasReasoning = !!lastValue?.reasoning?.content?.trim();
   return (
     <Flex flexDirection={'column'}>
       {chatValue.map((value, i) => {
@@ -154,7 +154,7 @@ const AIContentCard = React.memo(function AIContentCard({
       })}
 
       {/* 生成中占位动画（含断线续传拉流期间最后一条非文本时的 shimmer） */}
-      {isLastChild && !lastIsText && !lastIsReasoning && isChatting && (
+      {isLastChild && !lastHasText && !lastHasReasoning && isChatting && (
         <Box className={markdownStyles.animation}></Box>
       )}
 

projects/app/src/components/core/chat/components/AIResponseBox/index.tsx

@@ -38,30 +38,32 @@ const AIResponseBox = ({
   const tools = value.tools || (value.tool ? [value.tool] : undefined);
   const disableStreamingInteraction = isChatting && isLastChild;
   const skills = value.skills;
+  const reasoningContent = value.reasoning?.content || '';
+  const textContent = value.text?.content || '';
 
   if (value.hideInUI) return null;
 
   const responseBlocks: React.ReactNode[] = [];
 
-  if ('reasoning' in value && value.reasoning && !value.hideReason) {
+  if (reasoningContent && !value.hideReason) {
     responseBlocks.push(
       <RenderReasoningContent
         key="reasoning"
         isChatting={isChatting}
-        isLastResponseValue={isLastResponseValue}
-        content={value.reasoning.content}
+        isLastResponseValue={isLastResponseValue && !textContent && !tools}
+        content={reasoningContent}
         isDisabled={disableStreamingInteraction}
       />
     );
   }
 
-  if ('text' in value && value.text) {
+  if (value.text && textContent) {
     responseBlocks.push(
       <RenderText
         key="text"
         chatItemDataId={chatItemDataId}
         showAnimation={isChatting && isLastResponseValue}
-        text={value.text.content}
+        text={textContent}
         onOpenCiteModal={onOpenCiteModal}
         isDisabled={disableStreamingInteraction}
       />