add Subscribe Discount

internal/application/product/dto/commands/subscription_commands.go

@@ -10,4 +10,11 @@ type CreateSubscriptionCommand struct {
 type UpdateSubscriptionPriceCommand struct {
 	ID    string  `json:"-" uri:"id" binding:"required,uuid" comment:"订阅ID"`
 	Price float64 `json:"price" binding:"price,min=0" comment:"订阅价格"`
+}
+
+// BatchUpdateSubscriptionPricesCommand 批量更新订阅价格命令
+type BatchUpdateSubscriptionPricesCommand struct {
+	UserID  string  `json:"user_id" binding:"required,uuid" comment:"用户ID"`
+	Discount float64 `json:"discount" binding:"required,min=0.1,max=10" comment:"折扣比例(0.1-10折)"`
+	Scope   string  `json:"scope" binding:"required,oneof=undiscounted all" comment:"改价范围(undiscounted:仅未打折,all:所有)"`
 }