(client) feat:添加事件定义，定义部分怪物

Client/Assets/Scripts/Program.cs

@@ -208,6 +208,8 @@ public class Program : Singleton<Program>
 
         // 更新内部状态
         FocusedEntity = entity;
+        if(FocusedDimension)
+            FocusedDimension.focusEntity=entity;
 
         // 触发事件，将新的焦点实体（或 null）作为参数传递。
         OnFocusedEntityChanged?.Invoke(FocusedEntity);