优化结构

internal/integration/payment/allinpay.go

@@ -12,6 +12,7 @@ import (
 	"fmt"
 	"io"
 	bizpayment "kra/internal/biz/payment"
+	"kra/internal/paymentkit"
 	"net/http"
 	"strings"
 	"sync"
@@ -207,7 +208,7 @@ func allinpayCreateMethod(extra, config map[string]any) (string, error) {
 	if value == "" {
 		value = firstAny(config, "method", "pay_method", "trade_type")
 	}
-	normalized := strings.NewReplacer(".", "_", "-", "_", " ", "_").Replace(strings.ToLower(strings.TrimSpace(value)))
+	normalized := paymentkit.NormalizePaymentMethod(value)
 	switch normalized {
 	case "", "pay", "unified", "unified_pay":
 		return "pay", nil