(client) fix:Use the correct namespace

Client/Assets/Scripts/Base/Clock.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.SceneManagement;
+using Utils;
 
 namespace Base
 {
@@ -25,7 +26,7 @@ namespace Base
         }
     }
 
-    public class Clock : Ulity.MonoSingleton<Clock>
+    public class Clock : MonoSingleton<Clock>
     {
         public bool pause;
         public List<ITickPhysics> tickPhysics = new();