Refactor and clean up game assets and editor modules

- Deleted unused weapon and enemy stat assets to streamline project.
- Updated player form assets to reference new default weapon IDs.
- Enhanced DataHub editor UI for better usability, including improved tab management and detail views.
- Removed icon references in various editor modules to simplify the interface.
- Added new boss skill assets and corresponding metadata for future development.
- Created new folders and metadata for organizing boss-related assets, skills, and stats.
- Implemented a new skill asset with updated properties for better gameplay mechanics.

Assets/_Game/Scripts/Editor/Hub/DataHubWindow.cs

@@ -100,15 +100,19 @@ namespace BaseGames.Editor
             split.style.flexGrow = 1;
             root.Add(split);
 
-            // 列表区容器
+            // 列表区容器（TwoPaneSplitView 管理宽度，不需要 flexGrow）
             _listWrapper = new VisualElement();
-            _listWrapper.style.flexGrow = 1;
+            _listWrapper.style.flexGrow   = 1;
+            _listWrapper.style.overflow   = Overflow.Hidden;
             split.Add(_listWrapper);
 
-            // 详情区容器
-            _detailWrapper = new VisualElement();
-            _detailWrapper.style.flexGrow = 1;
-            split.Add(_detailWrapper);
+            // 详情区容器（ScrollView 支持超长内容滚动）
+            var detailScroll = new ScrollView(ScrollViewMode.Vertical);
+            detailScroll.style.flexGrow = 1;
+            detailScroll.contentContainer.style.flexGrow    = 1;
+            detailScroll.contentContainer.style.flexDirection = FlexDirection.Column;
+            split.Add(detailScroll);
+            _detailWrapper = detailScroll.contentContainer;
         }
 
         private VisualElement BuildNavSidebar()
@@ -163,14 +167,18 @@ namespace BaseGames.Editor
             btn.style.backgroundColor  = new StyleColor(Color.clear);
             btn.style.marginBottom     = 2;
 
-            // 图标
+            // 图标（容错：图标名无效时跳过，不报错）
             if (!string.IsNullOrEmpty(module.IconName))
             {
-                var icon = new Image { image = EditorGUIUtility.IconContent(module.IconName).image };
-                icon.style.width       = 16;
-                icon.style.height      = 16;
-                icon.style.marginRight = 6;
-                btn.Add(icon);
+                var content = EditorGUIUtility.IconContent(module.IconName);
+                if (content?.image != null)
+                {
+                    var icon = new Image { image = content.image };
+                    icon.style.width       = 16;
+                    icon.style.height      = 16;
+                    icon.style.marginRight = 6;
+                    btn.Add(icon);
+                }
             }
 
             var label = new Label(module.DisplayName);