feat: 添加用户优惠券列表接口及相关数据结构

backend/app/http/v1/user.go

@@ -241,3 +241,18 @@ func (u *User) Following(ctx fiber.Ctx) ([]dto.TenantProfile, error) {
 func (u *User) Notifications(ctx fiber.Ctx, typeArg string, page int) (*requests.Pager, error) {
 	return services.Notification.List(ctx.Context(), page, typeArg)
 }
+
+// List my coupons
+//
+// @Router /v1/me/coupons [get]
+// @Summary List coupons
+// @Description List my coupons
+// @Tags UserCenter
+// @Accept json
+// @Produce json
+// @Param status query string false "Status (unused, used, expired)"
+// @Success 200 {array} dto.UserCouponItem
+// @Bind status query
+func (u *User) MyCoupons(ctx fiber.Ctx, status string) ([]dto.UserCouponItem, error) {
+	return services.Coupon.ListUserCoupons(ctx.Context(), status)
+}