退款列表快照订单号

internal/model/refund.go

@@ -16,6 +16,7 @@ type RefundRequest struct {
 	// 退款单基础信息
 	RefundNo       string `gorm:"column:refund_no;type:varchar(50);uniqueIndex:idx_refund_request_refund_no,where:deleted_at IS NULL;not null;comment:退款单号（RF+日期时间+6位随机数）" json:"refund_no"`
 	OrderID        uint   `gorm:"column:order_id;index;not null;comment:关联订单ID" json:"order_id"`
+	OrderNo        string `gorm:"column:order_no;type:varchar(30);not null;default:'';comment:关联订单号快照" json:"order_no"`
 	PackageUsageID *uint  `gorm:"column:package_usage_id;comment:关联套餐使用记录ID（可选）" json:"package_usage_id,omitempty"`
 	ShopID         *uint  `gorm:"column:shop_id;index;comment:店铺ID（从订单获取，用于数据权限过滤）" json:"shop_id,omitempty"`
 	ShopName       string `gorm:"column:shop_name;->" json:"shop_name,omitempty"`