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/components/ChatScreen/MessageBubble.tsx

@@ -57,6 +57,7 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
   shouldShowTime,
   onImagePress,
   onReply,
+  onReplyPress,
 }) => {
   const bubbleRef = useRef<View>(null);
   const pressPositionRef = useRef({ x: 0, y: 0 });
@@ -306,6 +307,7 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
         isMe ? styles.myBubble : styles.theirBubble,
         hasReply && segmentStyles.replyBubble,
         isPureImageMessage && segmentStyles.pureImageBubble,
+        isSelected && (isMe ? styles.mySelectedBubble : styles.theirSelectedBubble),
       ]}>
         <MessageSegmentsRenderer
           segments={segments}
@@ -315,7 +317,7 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
           replyMessage={getReplyMessage()}
           getSenderInfo={getSenderInfo}
           onAtPress={() => undefined}
-          onReplyPress={() => undefined}
+          onReplyPress={onReplyPress}
           onImagePress={(url) => {
             // 查找点击的图片索引
             const clickIndex = imageSegments.findIndex(img => img.url === url);