Update methods to be internal, remove invocation bloat

Assets/Scripts/Input/InputManager.cs

@@ -52,7 +52,7 @@ namespace Input
 
         public override int ManagedAwakePriority => 25; // Input infrastructure
         
-        protected override void OnManagedAwake()
+        internal override void OnManagedAwake()
         {
             // Set instance immediately (early initialization)
             _instance = this;
@@ -87,7 +87,7 @@ namespace Input
             SwitchInputOnSceneLoaded(SceneManager.GetActiveScene().name);
         }
         
-        protected override void OnManagedStart()
+        internal override void OnManagedStart()
         {
             // Subscribe to scene load events from SceneManagerService
             // This must happen in ManagedStart because SceneManagerService instance needs to be set first