refactor: Replace hardcoded node paths with constants and remove ScoreComponent.

Autoloads/SaveSystem.cs

@@ -1,5 +1,6 @@
 using Godot;
 using Godot.Collections;
+using Mr.BrickAdventures;
 using Mr.BrickAdventures.scripts.Resources;
 
 namespace Mr.BrickAdventures.Autoloads;
@@ -13,7 +14,7 @@ public partial class SaveSystem : Node
 
     public override void _Ready()
     {
-        _gameManager = GetNode<GameManager>("/root/GameManager");
+        _gameManager = GetNode<GameManager>(Constants.GameManagerPath);
     }
 
     public void SaveGame()
@@ -46,16 +47,16 @@ public partial class SaveSystem : Node
         GD.Print("Game state loaded from: ", SavePath);
         GD.Print("Player state: ", saveDataObj["player_state"]);
         _gameManager.PlayerState = (Dictionary)saveDataObj["player_state"];
-        
+
         var skills = new Array<SkillData>();
         foreach (var skill in (Array<SkillData>)_gameManager.PlayerState["unlocked_skills"])
         {
             skills.Add(skill);
         }
-        
+
         _gameManager.UnlockSkills(skills);
         return true;
     }
-    
+
     public bool CheckSaveExists() => FileAccess.FileExists(SavePath);
 }