refactor(PostCard, PostCard.legacy): remove legacy PostCard component and update exports

- Deleted the legacy PostCard component to streamline the codebase and improve maintainability.
- Updated exports in PostCard and index files to remove references to the legacy component.
- Adjusted PostCardProps to eliminate legacy properties, ensuring only the new API is supported.
- Enhanced the PostCard component to focus on modern implementation and features.

src/screens/message/ChatScreen.tsx

@@ -78,6 +78,8 @@ export const ChatScreen: React.FC = () => {
   // 输入框区域高度（用于定位浮动 mention 面板）
   const [inputWrapperHeight, setInputWrapperHeight] = useState(60);
   const [showEdgeLoadingIndicator, setShowEdgeLoadingIndicator] = useState(false);
+  const replyTargetMessageIdRef = useRef<string | null>(null);
+  const replyHighlightTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
   const isPreloadingRef = useRef(false);
   const lastScrollYRef = useRef(0);
   const isUserDraggingRef = useRef(false);
@@ -151,6 +153,7 @@ export const ChatScreen: React.FC = () => {
     longPressMenuVisible,
     selectedMessage,
     selectedMessageId,
+    setSelectedMessageId,
     menuPosition,
     isGroupChat,
     groupInfo,
@@ -206,6 +209,7 @@ export const ChatScreen: React.FC = () => {
     handleReachLatestEdge,
     setBrowsingHistory,
   } = useChatScreen();
+  const displayMessages = useMemo(() => [...messages].reverse(), [messages]);
 
   useEffect(() => {
     if (!loadingMore && showEdgeLoadingIndicator) {
@@ -218,14 +222,46 @@ export const ChatScreen: React.FC = () => {
       if (preloadCooldownTimerRef.current) {
         clearTimeout(preloadCooldownTimerRef.current);
       }
+      if (replyHighlightTimerRef.current) {
+        clearTimeout(replyHighlightTimerRef.current);
+      }
     };
   }, []);
 
+  const highlightMessageTemporarily = useCallback((messageId: string, duration = 1500) => {
+    if (replyHighlightTimerRef.current) {
+      clearTimeout(replyHighlightTimerRef.current);
+    }
+    setSelectedMessageId(messageId);
+    replyHighlightTimerRef.current = setTimeout(() => {
+      setSelectedMessageId(prev => (prev === messageId ? null : prev));
+    }, duration);
+  }, [setSelectedMessageId]);
+
+  const handleReplyPreviewPress = useCallback((messageId: string) => {
+    const targetId = String(messageId);
+    const targetIndex = displayMessages.findIndex(msg => String(msg.id) === targetId);
+    if (targetIndex < 0) return;
+
+    replyTargetMessageIdRef.current = targetId;
+    setBrowsingHistory(true);
+    highlightMessageTemporarily(targetId);
+
+    flatListRef.current?.scrollToIndex({
+      index: targetIndex,
+      animated: true,
+      viewPosition: 0.5,
+    });
+  }, [displayMessages, flatListRef, highlightMessageTemporarily, setBrowsingHistory]);
+
   // 监听返回事件，刷新会话列表
   useEffect(() => {
     const unsubscribe = navigation.addListener('beforeRemove', () => {
       // 刷新会话列表，确保已读状态正确显示
-      messageManager.fetchConversations(true);
+      messageManager.requestConversationListRefresh('chat-before-remove', {
+        force: true,
+        allowDefer: false,
+      });
     });
     return unsubscribe;
   }, [navigation]);
@@ -261,6 +297,7 @@ export const ChatScreen: React.FC = () => {
         shouldShowTime={shouldShowTime}
         onImagePress={handleImagePress}
         onReply={handleReplyMessage}
+        onReplyPress={handleReplyPreviewPress}
       />
     );
   }, [
@@ -280,14 +317,13 @@ export const ChatScreen: React.FC = () => {
     shouldShowTime,
     handleImagePress,
     handleReplyMessage,
+    handleReplyPreviewPress,
   ]);
 
   const keyExtractor = useCallback((item: any) => String(item.id), []);
 
   // 获取正在输入提示
   const typingHint = getTypingHint();
-  const displayMessages = useMemo(() => [...messages].reverse(), [messages]);
-
   const handleMessageListScroll = useCallback((event: any) => {
     const { contentSize, contentOffset, layoutMeasurement } = event.nativeEvent;
     scrollPositionRef.current = {
@@ -410,6 +446,26 @@ export const ChatScreen: React.FC = () => {
             }}
             scrollEventThrottle={16}
             onContentSizeChange={handleContentSizeChange}
+            onScrollToIndexFailed={(info) => {
+              const targetId = replyTargetMessageIdRef.current;
+              if (!targetId || !flatListRef.current) return;
+
+              flatListRef.current.scrollToOffset({
+                offset: Math.max(0, info.averageItemLength * info.index),
+                animated: true,
+              });
+
+              setTimeout(() => {
+                const retryIndex = displayMessages.findIndex(msg => String(msg.id) === targetId);
+                if (retryIndex >= 0) {
+                  flatListRef.current?.scrollToIndex({
+                    index: retryIndex,
+                    animated: true,
+                    viewPosition: 0.5,
+                  });
+                }
+              }, 120);
+            }}
           />
         )}
         {showEdgeLoadingIndicator && (