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/services/postService.ts

@@ -304,37 +304,33 @@ class PostService {
        const response = await api.get<any>('/posts', requestParams);
       
        const data = response.data;
-       
-       // 兼容两种 API 响应格式：
-      // 1. 游标分页格式：{ items, next_cursor, prev_cursor, has_more }
-      // 2. 传统分页格式：{ list, total, page, page_size, total_pages }
-      if (data && typeof data === 'object') {
-        // 游标分页格式
-        if (Array.isArray(data.items)) {
-          return {
-            items: data.items,
-            next_cursor: data.next_cursor ?? null,
-            prev_cursor: data.prev_cursor ?? null,
-            has_more: data.has_more ?? false,
-          };
-        }
-        // 传统分页格式 - 转换为游标格式
-        if (Array.isArray(data.list)) {
-          const currentPage = data.page || 1;
-          const totalPages = data.total_pages || 1;
-          return {
-            items: data.list,
-            // 使用页码作为游标
-            next_cursor: currentPage < totalPages ? String(currentPage + 1) : null,
-            prev_cursor: currentPage > 1 ? String(currentPage - 1) : null,
-            has_more: currentPage < totalPages,
-          };
-        }
-      }
-      
-      // 默认返回空数据
+
+       if (data && typeof data === 'object' && Array.isArray(data.list)) {
+         const isPageShape =
+           typeof data.page === 'number' &&
+           typeof data.total_pages === 'number' &&
+           data.next_cursor === undefined &&
+           data.prev_cursor === undefined;
+         if (isPageShape) {
+           const currentPage = data.page || 1;
+           const totalPages = data.total_pages || 1;
+           return {
+             list: data.list,
+             next_cursor: currentPage < totalPages ? String(currentPage + 1) : null,
+             prev_cursor: currentPage > 1 ? String(currentPage - 1) : null,
+             has_more: currentPage < totalPages,
+           };
+         }
+         return {
+           list: data.list,
+           next_cursor: data.next_cursor ?? null,
+           prev_cursor: data.prev_cursor ?? null,
+           has_more: data.has_more ?? false,
+         };
+       }
+
       return {
-        items: [],
+        list: [],
         next_cursor: null,
         prev_cursor: null,
         has_more: false,
@@ -342,7 +338,7 @@ class PostService {
     } catch (error) {
       console.error('获取帖子列表失败:', error);
       return {
-        items: [],
+        list: [],
         next_cursor: null,
         prev_cursor: null,
         has_more: false,
@@ -367,31 +363,33 @@ class PostService {
       });
       
       const data = response.data;
-      
-      // 兼容两种 API 响应格式
-      if (data && typeof data === 'object') {
-        if (Array.isArray(data.items)) {
-          return {
-            items: data.items,
-            next_cursor: data.next_cursor ?? null,
-            prev_cursor: data.prev_cursor ?? null,
-            has_more: data.has_more ?? false,
-          };
-        }
-        if (Array.isArray(data.list)) {
+
+      if (data && typeof data === 'object' && Array.isArray(data.list)) {
+        const isPageShape =
+          typeof data.page === 'number' &&
+          typeof data.total_pages === 'number' &&
+          data.next_cursor === undefined &&
+          data.prev_cursor === undefined;
+        if (isPageShape) {
           const currentPage = data.page || 1;
           const totalPages = data.total_pages || 1;
           return {
-            items: data.list,
+            list: data.list,
             next_cursor: currentPage < totalPages ? String(currentPage + 1) : null,
             prev_cursor: currentPage > 1 ? String(currentPage - 1) : null,
             has_more: currentPage < totalPages,
           };
         }
+        return {
+          list: data.list,
+          next_cursor: data.next_cursor ?? null,
+          prev_cursor: data.prev_cursor ?? null,
+          has_more: data.has_more ?? false,
+        };
       }
-      
+
       return {
-        items: [],
+        list: [],
         next_cursor: null,
         prev_cursor: null,
         has_more: false,
@@ -399,7 +397,7 @@ class PostService {
     } catch (error) {
       console.error('搜索帖子失败:', error);
       return {
-        items: [],
+        list: [],
         next_cursor: null,
         prev_cursor: null,
         has_more: false,
@@ -424,31 +422,33 @@ class PostService {
       );
       
       const data = response.data;
-      
-      // 兼容两种 API 响应格式
-      if (data && typeof data === 'object') {
-        if (Array.isArray(data.items)) {
-          return {
-            items: data.items,
-            next_cursor: data.next_cursor ?? null,
-            prev_cursor: data.prev_cursor ?? null,
-            has_more: data.has_more ?? false,
-          };
-        }
-        if (Array.isArray(data.list)) {
+
+      if (data && typeof data === 'object' && Array.isArray(data.list)) {
+        const isPageShape =
+          typeof data.page === 'number' &&
+          typeof data.total_pages === 'number' &&
+          data.next_cursor === undefined &&
+          data.prev_cursor === undefined;
+        if (isPageShape) {
           const currentPage = data.page || 1;
           const totalPages = data.total_pages || 1;
           return {
-            items: data.list,
+            list: data.list,
             next_cursor: currentPage < totalPages ? String(currentPage + 1) : null,
             prev_cursor: currentPage > 1 ? String(currentPage - 1) : null,
             has_more: currentPage < totalPages,
           };
         }
+        return {
+          list: data.list,
+          next_cursor: data.next_cursor ?? null,
+          prev_cursor: data.prev_cursor ?? null,
+          has_more: data.has_more ?? false,
+        };
       }
-      
+
       return {
-        items: [],
+        list: [],
         next_cursor: null,
         prev_cursor: null,
         has_more: false,
@@ -456,7 +456,7 @@ class PostService {
     } catch (error) {
       console.error('获取用户帖子列表失败:', error);
       return {
-        items: [],
+        list: [],
         next_cursor: null,
         prev_cursor: null,
         has_more: false,