feat: 更新内容相关接口，使用统一的分页响应结构

backend/app/http/v1/content.go

@@ -2,6 +2,7 @@ package v1
 
 import (
 	"quyun/v2/app/http/v1/dto"
+	"quyun/v2/app/requests"
 	"quyun/v2/app/services"
 
 	"github.com/gofiber/fiber/v3"
@@ -23,7 +24,7 @@ type Content struct{}
 // @Param tenantId query string false "Filter by creator"
 // @Param sort query string false "Sort order" Enums(latest, hot, price_asc)
 // @Param page query int false "Page number"
-// @Success 200 {object} dto.ContentListResponse
+// @Success 200 {object} requests.Pager{items=[]dto.ContentItem}
 // @Bind keyword query
 // @Bind genre query
 // @Bind tenantId query
@@ -33,7 +34,7 @@ func (c *Content) List(
 	ctx fiber.Ctx,
 	keyword, genre, tenantId, sort string,
 	page int,
-) (*dto.ContentListResponse, error) {
+) (*requests.Pager, error) {
 	return services.Content.List(ctx.Context(), keyword, genre, tenantId, sort, page)
 }
 
@@ -62,10 +63,10 @@ func (c *Content) Get(ctx fiber.Ctx, id string) (*dto.ContentDetail, error) {
 // @Produce json
 // @Param id path string true "Content ID"
 // @Param page query int false "Page number"
-// @Success 200 {object} dto.CommentListResponse
+// @Success 200 {object} requests.Pager{items=[]dto.Comment}
 // @Bind id path
 // @Bind page query
-func (c *Content) ListComments(ctx fiber.Ctx, id string, page int) (*dto.CommentListResponse, error) {
+func (c *Content) ListComments(ctx fiber.Ctx, id string, page int) (*requests.Pager, error) {
 	return services.Content.ListComments(ctx.Context(), id, page)
 }
 
@@ -112,4 +113,4 @@ func (c *Content) LikeComment(ctx fiber.Ctx, id string) error {
 // @Success 200 {array} dto.Topic
 func (c *Content) ListTopics(ctx fiber.Ctx) ([]dto.Topic, error) {
 	return services.Content.ListTopics(ctx.Context())
-}
+}