Improve WAF service mode update with concurrent listener processing

- Add synchronization mechanism using sync.WaitGroup
- Implement concurrent goroutine updates for WAF service listeners
- Ensure all listener updates complete before returning
- Create local listener variable to prevent goroutine closure issues

internal/service/waf.go

@@ -12,6 +12,7 @@ import (
 	"os"
 	"strconv"
 	"strings"
+	"sync"
 
 	"github.com/rs/zerolog/log"
 	"gitlab.com/tensorsecurity-rd/waf-console/internal/model"
@@ -289,9 +290,12 @@ func (s *wafService) UpdateMode(ctx context.Context, req *UpdateModeReq) (*WafSe
 	if err != nil {
 		return nil, fmt.Errorf("failed to get listener list: %v", err)
 	}
+	var wg sync.WaitGroup
 	for _, listener := range listenerList.Items {
+		wg.Add(1)
 		listener := listener // Create new variable for goroutine
 		go func() {
+			defer wg.Done()
 			log.Info().Msgf("update WAF service mode: %v", listener.Name)
 			_, err := client.WafV1alpha1().Services(req.Namespace).Update(ctx, &listener, metav1.UpdateOptions{})
 			if err != nil {
@@ -299,6 +303,7 @@ func (s *wafService) UpdateMode(ctx context.Context, req *UpdateModeReq) (*WafSe
 			}
 		}()
 	}
+	wg.Wait()
 	return &WafService{
 		GatewayName: req.GatewayName,
 		Mode:        string(req.Mode),