(client) feat:右键菜单全局与UI分离，Building生成支持，双层地图重写

Client/Assets/Scripts/Entity/Entity.cs

@@ -214,7 +214,7 @@ namespace Entity
             currentJob.Update();
         }
 
-        private void UpdatePlayerControls()
+        protected virtual void UpdatePlayerControls()
         {
             // 检测 Shift 键状态
             var isHoldingShift = Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift);