chore: add new meta files for TileRegistry, LevelDefinition, GameUiCoordinator, and test assets

Assets/Scripts/Infrastructure/Unity/LevelGenerator.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using Core.Domain;
 using UnityEngine;
+using Debug = UnityEngine.Debug;
 using Random = UnityEngine.Random;
 
 namespace Infrastructure.Unity
@@ -30,7 +31,7 @@ namespace Infrastructure.Unity
         
         public IEnumerator GenerateAsync(SoundManager soundManager, TileRegistry registry, CameraController camera, RumbleManager rumble, Action onComplete)
         {
-            if (levelDefinition == null)
+            if (!levelDefinition)
             {
                 Debug.LogError("LevelGenerator: levelDefinition is not assigned. Assign a LevelDefinition asset in the Inspector.");
                 onComplete?.Invoke();