fix

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

@@ -137,15 +137,10 @@ func newWechatPayServiceWithWxPayPubKey(c config.Config, userAuthModel model.Use
 	}
 
 	// 初始化 notify.Handler
-	// 使用公钥方式时，certificateVisitor 可能为 nil，直接使用公钥验证器
+	// 使用微信支付公钥方式时，使用 NewSHA256WithRSAPubkeyVerifier
 	notifyHandler := notify.NewNotifyHandler(
 		mchAPIv3Key,
-		verifiers.NewSHA256WithRSACombinedVerifier(nil, mchPublicKeyID, *mchPublicKey))
-	
-	if notifyHandler == nil {
-		logx.Errorf("创建 notifyHandler 失败")
-		panic("初始化失败，服务停止: notifyHandler 为 nil")
-	}
+		verifiers.NewSHA256WithRSAPubkeyVerifier(mchPublicKeyID, *mchPublicKey))
 
 	logx.Infof("微信支付客户端初始化成功(微信支付公钥方式)")
 	return &WechatPayService{
@@ -299,9 +294,6 @@ func (w *WechatPayService) CreateWechatOrder(ctx context.Context, amount float64
 
 // HandleWechatPayNotification 处理微信支付回调
 func (w *WechatPayService) HandleWechatPayNotification(ctx context.Context, req *http.Request) (*payments.Transaction, error) {
-	if w.notifyHandler == nil {
-		return nil, fmt.Errorf("微信支付通知处理器未初始化")
-	}
 	transaction := new(payments.Transaction)
 	_, err := w.notifyHandler.ParseNotifyRequest(ctx, req, transaction)
 	if err != nil {
@@ -313,9 +305,6 @@ func (w *WechatPayService) HandleWechatPayNotification(ctx context.Context, req
 
 // HandleRefundNotification 处理微信退款回调
 func (w *WechatPayService) HandleRefundNotification(ctx context.Context, req *http.Request) (*refunddomestic.Refund, error) {
-	if w.notifyHandler == nil {
-		return nil, fmt.Errorf("微信支付通知处理器未初始化")
-	}
 	refund := new(refunddomestic.Refund)
 	_, err := w.notifyHandler.ParseNotifyRequest(ctx, req, refund)
 	if err != nil {