Update methods to be internal, remove invocation bloat

Assets/Scripts/PuzzleS/BirdGameStats.cs

@@ -16,7 +16,7 @@ namespace PuzzleS
         // Save system configuration
         public override bool AutoRegisterForSave => true;
 
-        protected override void OnManagedStart()
+        internal override void OnManagedStart()
         {
             // Initialize after all managers are ready
         }
@@ -28,7 +28,7 @@ namespace PuzzleS
 
         #region Save/Load Lifecycle Hooks
 
-        protected override string OnSceneSaveRequested()
+        internal override string OnSceneSaveRequested()
         {
             // Save scene-specific progress
             var state = new BirdGameState
@@ -38,7 +38,7 @@ namespace PuzzleS
             return JsonUtility.ToJson(state);
         }
 
-        protected override void OnSceneRestoreRequested(string serializedData)
+        internal override void OnSceneRestoreRequested(string serializedData)
         {
             if (string.IsNullOrEmpty(serializedData))
             {