refactor: Consolidate skill component logic into SkillComponentBase and update manager access to singletons.

Autoloads/GameManager.cs

@@ -30,6 +30,8 @@ public partial class GameManager : Node
     /// </summary>
     private GameStateStore Store => GameStateStore.Instance;
 
+    public static GameManager Instance { get; private set; }
+
     public override void _EnterTree()
     {
         GetTree().NodeAdded += OnNodeAdded;
@@ -38,6 +40,7 @@ public partial class GameManager : Node
 
     public override void _ExitTree()
     {
+        if (Instance == this) Instance = null;
         GetTree().NodeAdded -= OnNodeAdded;
         GetTree().NodeRemoved -= OnNodeRemoved;
         _sceneNodes.Clear();
@@ -45,6 +48,7 @@ public partial class GameManager : Node
 
     public override void _Ready()
     {
+        Instance = this;
         _speedRunManager = GetNode<SpeedRunManager>(Constants.SpeedRunManagerPath);
     }
 
@@ -140,11 +144,9 @@ public partial class GameManager : Node
     {
         if (Store == null) return new Array<SkillData>();
 
+        var skills = Store.GetAllUnlockedSkills();
         var result = new Array<SkillData>();
-        foreach (var s in Store.Player.UnlockedSkills)
-            result.Add(s);
-        foreach (var s in Store.Session.SkillsUnlocked)
-            if (!result.Contains(s)) result.Add(s);
+        foreach (var s in skills) result.Add(s);
         return result;
     }