重构：统一 UI 模块目录结构规范

- 事件命名规范化：RefreshEventArgs → LevelUpRefreshEventArgs
- LevelUp 子组件目录调整：LevelUpRewardItem + LevelUpRewardItemContext 移动到 LevelUp/
- Shop 子组件目录调整：DisplayItem/DisplayListArea/GoodsItem/ShopGoodsItem 及其 Context/RawData 全部移动到 Shop/
- 删除冗余文件：LevelUpRewardItemRawData（从未被使用）
- 新增 ObjectPool 目录结构
- 更新 LevelUpController 和 LevelUpForm 中的事件引用

Assets/GameMain/Scripts/Presentation/Main/LevelUp/LevelUpController.cs

@@ -21,14 +21,14 @@ namespace SepCore.UI
 
         protected override void SubscribeCustomEvents()
         {
-            GameEntry.Event.Subscribe(RefreshEventArgs.EventId, OnRefresh);
-            GameEntry.Event.Subscribe(LevelUpPropSelectedEventArgs.EventId, OnLevelUpPropSelected);
+            GameEntry.Event.Subscribe(LevelUpRefreshEventArgs.EventId, LevelUpRefresh);
+            GameEntry.Event.Subscribe(LevelUpPropSelectedEventArgs.EventId, LevelUpPropSelected);
         }
 
         protected override void UnsubscribeCustomEvents()
         {
-            GameEntry.Event.Unsubscribe(RefreshEventArgs.EventId, OnRefresh);
-            GameEntry.Event.Unsubscribe(LevelUpPropSelectedEventArgs.EventId, OnLevelUpPropSelected);
+            GameEntry.Event.Unsubscribe(LevelUpRefreshEventArgs.EventId, LevelUpRefresh);
+            GameEntry.Event.Unsubscribe(LevelUpPropSelectedEventArgs.EventId, LevelUpPropSelected);
         }
 
         private static LevelUpContext BuildContext(LevelUpRawData rawData)
@@ -144,14 +144,14 @@ namespace SepCore.UI
             await OpenUIAsync(rawData);
         }
 
-        private void OnRefresh(object sender, GameEventArgs e)
+        private void LevelUpRefresh(object sender, GameEventArgs e)
         {
             if (sender is not LevelUpForm levelUpForm || levelUpForm != Form)
             {
                 return;
             }
 
-            if (e is not RefreshEventArgs args)
+            if (e is not LevelUpRefreshEventArgs args)
             {
                 return;
             }
@@ -159,7 +159,7 @@ namespace SepCore.UI
             RefreshRewardListAsync(args.Cost).Forget();
         }
 
-        private void OnLevelUpPropSelected(object sender, GameEventArgs e)
+        private void LevelUpPropSelected(object sender, GameEventArgs e)
         {
             if (sender is not LevelUpForm levelUpForm || levelUpForm != Form)
             {

Assets/GameMain/Scripts/Presentation/Main/LevelUp/LevelUpForm.cs

@@ -64,7 +64,7 @@ namespace SepCore.UI
 
         public void OnRefreshButtonClick()
         {
-            GameEntry.Event.Fire(this, RefreshEventArgs.Create(_context.RefreshPrice));
+            GameEntry.Event.Fire(this, LevelUpRefreshEventArgs.Create(_context.RefreshPrice));
         }
     }
 }

Assets/GameMain/Scripts/Presentation/Main/View/DisplayItemObject.cs

@@ -1,27 +0,0 @@
-using GameFramework;
-using GameFramework.ObjectPool;
-using UnityEngine;
-
-namespace SepCore.UI
-{
-    public class DisplayItemObject : ObjectBase
-    {
-        public static DisplayItemObject Create(object target)
-        {
-            DisplayItemObject displayItemObject = ReferencePool.Acquire<DisplayItemObject>();
-            displayItemObject.Initialize(target);
-            return displayItemObject;
-        }
-
-        protected override void Release(bool isShutdown)
-        {
-            DisplayItem item = (DisplayItem)Target;
-            if (item == null)
-            {
-                return;
-            }
-
-            Object.Destroy(item.gameObject);
-        }
-    }
-}

Assets/GameMain/Scripts/Presentation/Main/View/DisplayItemObject.cs.meta

@@ -1,11 +0,0 @@
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-MonoImporter:
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