Initial commit: Unity WordConnect project

Assets/WordConnectGameToolkit/Scripts/Levels/Editor/LevelHierarchyItem.cs

@@ -0,0 +1,18 @@
+using UnityEngine;
+using UnityEditor.IMGUI.Controls;
+
+namespace WordsToolkit.Scripts.Levels.Editor
+{
+    // Custom TreeViewItem for level hierarchy
+    public class LevelHierarchyItem : TreeViewItem
+    {
+        public enum ItemType { Collection, Group, Level }
+        
+        public ItemType type;
+        public string folderPath; // For collections
+        public LevelGroup groupAsset; // For groups
+        public Level levelAsset; // For levels
+        public string assetPath;
+        public new Texture2D icon;
+    }
+}