Cleanup branch work

Assets/Scripts/Bootstrap/BootSceneController.cs

@@ -51,12 +51,9 @@ namespace Bootstrap
             
             // Subscribe to loading screen completion event
             initialLoadingScreen.OnLoadingScreenFullyHidden += OnInitialLoadingComplete;
-            RegisterManagedEvent(initialLoadingScreen, nameof(initialLoadingScreen.OnLoadingScreenFullyHidden), 
-                (Action)OnInitialLoadingComplete);
             
             // Subscribe to boot progress for real-time updates during bootstrap
             CustomBoot.OnBootProgressChanged += OnBootProgressChanged;
-            // Note: Static events need manual cleanup in OnDestroy
             
             _logVerbosity = DeveloperSettingsProvider.Instance.GetSettings<DebugSettings>().bootstrapLogVerbosity;
             
@@ -83,10 +80,14 @@ namespace Bootstrap
 
         protected override void OnDestroy()
         {
-            // Manual cleanup for static event (RegisterManagedEvent doesn't handle static events properly)
-            CustomBoot.OnBootProgressChanged -= OnBootProgressChanged;
+            base.OnDestroy();
             
-            base.OnDestroy(); // Handles other managed event cleanup
+            // Manual cleanup for events
+            if (initialLoadingScreen != null)
+            {
+                initialLoadingScreen.OnLoadingScreenFullyHidden -= OnInitialLoadingComplete;
+            }
+            CustomBoot.OnBootProgressChanged -= OnBootProgressChanged;
         }
         
         /// <summary>