fix

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

@@ -137,10 +137,10 @@ func newWechatPayServiceWithWxPayPubKey(c config.Config, userAuthModel model.Use
 	}
 
 	// 初始化 notify.Handler
-	// 使用微信支付公钥方式时，使用 NewSHA256WithRSAPubkeyVerifier
+	certificateVisitor := downloader.MgrInstance().GetCertificateVisitor(mchID)
 	notifyHandler := notify.NewNotifyHandler(
 		mchAPIv3Key,
-		verifiers.NewSHA256WithRSAPubkeyVerifier(mchPublicKeyID, *mchPublicKey))
+		verifiers.NewSHA256WithRSACombinedVerifier(certificateVisitor, 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{