fix商品接口报错

src/main/java/com/aida/seller/module/listing/controller/ListingMallController.java

@@ -28,10 +28,10 @@ public class ListingMallController {
 
     @Operation(summary = "商城首页商品分页列表", description = "")
     @PostMapping("/mall")
-    public PageResponse<ListingMallVO> getMallListings(
+    public Response<PageResponse<ListingMallVO>> getMallListings(
             @RequestBody ListingMallQueryDTO dto) {
         IPage<ListingMallVO> page = listingMallService.getMallListings(dto);
-        return PageResponse.success(page);
+        return Response.success(PageResponse.success(page));
     }
 
     @Operation(summary = "商品详情（商城详情页）", description = "关联图片与店铺信息")