(client) feat:实现实体动态创建，实体右键菜单

Co-authored-by: m0_75251201 <m0_75251201@noreply.gitcode.com>
Reviewed-on: Roguelite-Game-Developing-Team/Gen_Hack-and-Slash-Roguelite#41

Client/Assets/Scripts/Entity/Character.cs

@@ -10,12 +10,11 @@ namespace Entity
     public class Character : Entity
     {
         public CharacterDef characterDef;
-        public GameObject body;
 
         private void Start()
         {
             aiTree = new RandomWander();
-            runtimeAttributes = new AttributesDef();
+            attributes = new AttributesDef();
         }
 
         public void Init()