修复金额的问题

internal/model/dto/order_dto.go

@@ -22,6 +22,7 @@ type OrderListRequest struct {
 	Page          int        `json:"page" query:"page" validate:"omitempty,min=1" minimum:"1" description:"页码"`
 	PageSize      int        `json:"page_size" query:"page_size" validate:"omitempty,min=1,max=100" minimum:"1" maximum:"100" description:"每页数量"`
 	PaymentStatus *int       `json:"payment_status" query:"payment_status" validate:"omitempty,min=1,max=4" minimum:"1" maximum:"4" description:"支付状态 (1:待支付, 2:已支付, 3:已取消, 4:已退款)"`
+	PaymentMethod string     `json:"payment_method" query:"payment_method" validate:"omitempty,oneof=wallet wechat alipay offline" description:"支付方式 (wallet:钱包支付, wechat:微信支付, alipay:支付宝支付, offline:线下支付)"`
 	OrderType     string     `json:"order_type" query:"order_type" validate:"omitempty,oneof=single_card device" description:"订单类型 (single_card:单卡购买, device:设备购买)"`
 	OrderNo       string     `json:"order_no" query:"order_no" validate:"omitempty,max=30" maxLength:"30" description:"订单号(精确查询)"`
 	PurchaseRole  string     `json:"purchase_role" query:"purchase_role" validate:"omitempty,oneof=self_purchase purchased_by_parent purchased_by_platform purchase_for_subordinate" description:"订单角色 (self_purchase:自己购买, purchased_by_parent:上级代理购买, purchased_by_platform:平台代购, purchase_for_subordinate:给下级购买)"`