修复 Context 改造后的编译问题

backend/internal/router/router.go

@@ -1,6 +1,7 @@
 package router
 
 import (
+	"context"
 	"os"
 	"strings"
 
@@ -164,7 +165,7 @@ func New(cfg config.Config, deps Dependencies, logger *zap.Logger) *gin.Engine {
 	// Inject refund function into order repo to avoid circular dependency
 	if orderRepo != nil && paymentRepo != nil {
 		orderRepo.SetRefundFunc(func(orderID uint64, refundAmountCent int64, bizType string, remark string) (string, error) {
-			dto, err := paymentRepo.StartRefund(orderID, refundAmountCent, bizType, remark)
+			dto, err := paymentRepo.StartRefund(context.Background(), orderID, refundAmountCent, bizType, remark)
 			if err != nil {
 				return "", err
 			}
@@ -200,7 +201,7 @@ func New(cfg config.Config, deps Dependencies, logger *zap.Logger) *gin.Engine {
 	}
 	if disputeRepo != nil && paymentRepo != nil {
 		disputeRepo.SetRefundFunc(func(orderID uint64, refundAmountCent int64, bizType string, remark string) (string, error) {
-			dto, err := paymentRepo.StartRefund(orderID, refundAmountCent, bizType, remark)
+			dto, err := paymentRepo.StartRefund(context.Background(), orderID, refundAmountCent, bizType, remark)
 			if err != nil {
 				return "", err
 			}