fix promotion

app/main/api/internal/service/payService.go

@@ -366,7 +366,7 @@ func (p *PayService) Refund(ctx context.Context, req *RefundRequest) (*RefundRes
 				refundAmount:     resp.RefundAmount,
 				platformRefundId: sql.NullString{String: resp.RefundID, Valid: true},
 			}
-			order.Status = model.OrderRefundStatusSuccess
+			order.Status = model.OrderStatusRefund
 		default:
 			return fmt.Errorf("不支持的支付平台退款: %s", order.PaymentPlatform)
 		}
@@ -389,7 +389,7 @@ func (p *PayService) Refund(ctx context.Context, req *RefundRequest) (*RefundRes
 		}
 
 		// 更新订单状态
-		order.Status = model.OrderStatusRefunding
+		order.Status = model.OrderStatusRefund
 		order.RefundTime = sql.NullTime{Time: result.refundTime, Valid: !result.refundTime.IsZero()}
 		if _, err := p.orderModel.Update(ctx, session, order); err != nil {
 			return fmt.Errorf("更新订单状态失败: %v", err)