(client) feat:添加消息定义，添加故事定义及其运算，武器动画可用，装备UI可用以及切换武器 fix:修复快速攻击导致协程释放出错卡死，重构为计时器，修复类型转换错误导致报错

Client/Assets/Scripts/Entity/Character.cs

@@ -31,7 +31,7 @@ namespace Entity
         public override void Init(EntityDef entityDef)
         {
             Inventory = new Inventory(this, 3);
-            
+            Inventory.OnInventoryChanged += InventoryChange;
             CurrentSelected = 0;
             base.Init(entityDef);
         }
@@ -64,7 +64,12 @@ namespace Entity
         public override WeaponResource GetCurrentWeapon()
         {
             var currentSelectItem = Inventory.GetSlot(CurrentSelected);
-            return (WeaponResource)currentSelectItem?.Item;
+            return currentSelectItem?.Item as WeaponResource;
+        }
+
+        private void InventoryChange()
+        {
+            InitWeaponAnimator();
         }
     }
 }