Add ChargeProgressBar, Credits, and GameOverScreen components for UI management

scripts/UI/GameOverScreen.cs

@@ -0,0 +1,39 @@
+using Godot;
+using Mr.BrickAdventures.Autoloads;
+
+namespace Mr.BrickAdventures.scripts.UI;
+
+public partial class GameOverScreen : Node
+{
+    [Export] public Control GameOverPanel { get; set; }
+    [Export] public Button RestartButton { get; set; }
+    [Export] public Button MainMenuButton { get; set; }
+    [Export] public PackedScene MainMenuScene { get; set; }
+    
+    private GameManager _gameManager;
+
+    public override void _Ready()
+    {
+        _gameManager = GetNode<GameManager>("/root/GameManager");
+        RestartButton.Pressed += OnRestartClicked;
+        MainMenuButton.Pressed += OnMainMenuClicked;
+    }
+
+    private void OnMainMenuClicked()
+    {
+        _gameManager.ResetPlayerState();
+        GetTree().ChangeSceneToPacked(MainMenuScene);
+    }
+
+    private void OnRestartClicked()
+    {
+        _gameManager.RestartGame();
+    }
+
+    public void OnPlayerDeath()
+    {
+        if (_gameManager == null || _gameManager.GetLives() != 0) return;
+        
+        GameOverPanel.Show();
+    }
+}