Add debug foundation

godot/scripts/bootstrap/GameRoot.cs

@@ -15,6 +15,9 @@ public partial class GameRoot : Node
         GD.Print($"Debug boot: {m_Settings.BootMode}");
         GD.Print($"Seed: {m_Settings.Seed}");
 
+        m_CommandNode = GetNodeOrNull<DebugCommandNode>("DebugCommandNode");
+        m_CommandNode?.Initialize(m_Settings);
+
         LoadBootScene(m_Settings.BootMode);
     }
 
@@ -24,6 +27,7 @@ public partial class GameRoot : Node
         {
             DebugBootMode.Smoke          => SmokeScene,
             DebugBootMode.ContentBrowser => ContentBrowserScene,
+            DebugBootMode.DebugSandbox   => DebugSandboxScene,
             _                            => MenuScene
         };
 
@@ -45,7 +49,14 @@ public partial class GameRoot : Node
         DebugOverlay? overlay = GetNodeOrNull<DebugOverlay>("DebugOverlay");
         if (overlay is not null && m_Settings is not null)
         {
-            overlay.SetStatus(m_Settings, loadedSceneId);
+            if (m_CommandNode is not null)
+            {
+                overlay.Bind(m_CommandNode.Service, m_Settings, loadedSceneId);
+            }
+            else
+            {
+                overlay.SetStatus(m_Settings, loadedSceneId);
+            }
         }
     }
 
@@ -58,6 +69,10 @@ public partial class GameRoot : Node
     [Export]
     public PackedScene? ContentBrowserScene { get; set; }
 
+    [Export]
+    public PackedScene? DebugSandboxScene { get; set; }
+
     private Node? m_LoadedScene;
     private DebugSettings? m_Settings;
+    private DebugCommandNode? m_CommandNode;
 }