refactor: standardize pagination response structure and enhance cursor handling

- Update various services and hooks to replace 'items' with 'list' for consistency in pagination responses.
- Modify PostRepository, commentService, groupService, messageService, and postService to align with the new response structure.
- Enhance cursor pagination logic in hooks and components to ensure proper handling of pagination states.
- Refactor HomeScreen, PostDetailScreen, SearchScreen, and other components to utilize the updated pagination structure.

src/screens/message/MessageListScreen.tsx

@@ -164,7 +164,7 @@ export const MessageListScreen: React.FC = () => {
 
   // 【游标分页】使用 useCursorPagination hook 获取会话列表
   const {
-    items: conversations,
+    list: conversationList,
     isLoading,
     isRefreshing,
     hasMore,
@@ -453,7 +453,7 @@ export const MessageListScreen: React.FC = () => {
       if (activeSearchTab === 'chat') {
         const results: SearchResultItem[] = [];
 
-        for (const conv of conversations) {
+        for (const conv of conversationList) {
           await messageManager.fetchMessages(String(conv.id));
           const messages = messageManager.getMessages(String(conv.id));
           const matchedMessages = messages.filter(msg => {
@@ -484,7 +484,7 @@ export const MessageListScreen: React.FC = () => {
     } finally {
       setIsSearching(false);
     }
-  }, [conversations, activeSearchTab]);
+  }, [conversationList, activeSearchTab]);
 
   // 搜索文本变化时触发搜索
   useEffect(() => {
@@ -533,7 +533,7 @@ export const MessageListScreen: React.FC = () => {
   // 合并列表数据
   const listData: ConversationResponse[] = [
     createSystemMessageItem(),
-    ...conversations,
+    ...conversationList,
   ];
 
   // 总未读数
@@ -923,7 +923,7 @@ export const MessageListScreen: React.FC = () => {
         </View>
       </TouchableOpacity>
 
-      {isLoading && conversations.length === 0 ? (
+      {isLoading && conversationList.length === 0 ? (
         <View style={styles.loadingContainer}>
           <ActivityIndicator size="large" color={colors.primary.main} />
         </View>