Refactor WAF route configuration

- Modify WAF route to use empty string for root path
- Remove commented-out route for gateway endpoint
- Simplify route configuration in `SetWafRouter`

api/waf.go

@@ -11,8 +11,7 @@ func SetWafRouter(e *gin.Engine, clusterClientManager *utils.ClusterClientManage
 	v1 := e.Group("v1/api/waf")
 
 	wafController := controller.NewWafController(clusterClientManager, db, gatewayUrl)
-	v1.GET("/", wafController.Waf)
-	// v1.POST("/gateway", wafController.GetWafGatewayInfo)
+	v1.GET("", wafController.Waf)
 	v1.POST("/", wafController.CreateWaf)
 	v1.PUT("mode", wafController.UpdateMode)
 	v1.PUT("rules", wafController.UpdateRule)