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/home/SearchScreen.tsx

@@ -22,6 +22,7 @@ import { Post, User } from '../../types';
 import { useUserStore } from '../../stores';
 import { postService, authService } from '../../services';
 import { PostCard, TabBar, SearchBar } from '../../components/business';
+import type { PostCardAction } from '../../components/business/PostCard';
 import { Avatar, EmptyState, Text, ResponsiveGrid, Loading } from '../../components/common';
 import { HomeStackParamList } from '../../navigation/types';
 import { useResponsive, useResponsiveSpacing, useResponsiveValue } from '../../hooks/useResponsive';
@@ -175,6 +176,41 @@ export const SearchScreen: React.FC<SearchScreenProps> = ({ onBack, navigation:
     navigation.navigate('UserProfile', { userId });
   };
 
+  // 统一处理 PostCard 的操作（搜索页不支持删除）
+  const handlePostAction = (post: Post, action: PostCardAction) => {
+    switch (action.type) {
+      case 'press':
+        handlePostPress(post.id);
+        break;
+      case 'userPress':
+        if (post.author?.id) {
+          handleUserPress(post.author.id);
+        }
+        break;
+      case 'like':
+        postService.likePost(post.id);
+        break;
+      case 'unlike':
+        postService.unlikePost(post.id);
+        break;
+      case 'comment':
+        handlePostPress(post.id, true);
+        break;
+      case 'bookmark':
+        postService.favoritePost(post.id);
+        break;
+      case 'unbookmark':
+        postService.unfavoritePost(post.id);
+        break;
+      case 'share':
+        // 搜索页暂不处理分享
+        break;
+      case 'imagePress':
+      case 'delete':
+        break;
+    }
+  };
+
   // 获取当前搜索类型
   const getSearchType = (): SearchType => {
     switch (activeIndex) {
@@ -222,13 +258,9 @@ export const SearchScreen: React.FC<SearchScreenProps> = ({ onBack, navigation:
               <PostCard
                 key={post.id}
                 post={post}
-                onPress={() => handlePostPress(post.id)}
-                onUserPress={() => post.author ? handleUserPress(post.author.id) : () => {}}
-                onLike={() => {}}
-                onComment={() => handlePostPress(post.id, true)}
-                onBookmark={() => {}}
-                onShare={() => {}}
-                compact={isMobile}
+                onAction={(action) => handlePostAction(post, action)}
+                variant="list"
+                features={isMobile ? 'compact' : 'full'}
               />
             ))}
           </ResponsiveGrid>
@@ -248,13 +280,9 @@ export const SearchScreen: React.FC<SearchScreenProps> = ({ onBack, navigation:
         renderItem={({ item }) => (
           <PostCard
             post={item}
-            onPress={() => handlePostPress(item.id)}
-            onUserPress={() => item.author ? handleUserPress(item.author.id) : () => {}}
-            onLike={() => {}}
-            onComment={() => handlePostPress(item.id, true)}
-            onBookmark={() => {}}
-            onShare={() => {}}
-            compact
+            onAction={(action) => handlePostAction(item, action)}
+            variant="list"
+            features="compact"
           />
         )}
         keyExtractor={item => item.id}