♻️ Rebuild with DI

Scripts/System/DependencyInjection.cs

@@ -0,0 +1,23 @@
+using Godot;
+using Container = SimpleInjector.Container;
+
+namespace AceFieldNewHorizon.Scripts.System;
+
+public static class DependencyInjection
+{
+    public static Container Container { get; private set; }
+
+    public static void Initialize()
+    {
+        Container = new Container();
+
+        // Register your system services here
+        // As singletons, since they are typically unique global managers
+        Container.RegisterSingleton<ResourceManager>();
+        Container.RegisterSingleton<GridManager>();
+        Container.RegisterSingleton(() => new BuildingRegistry("res://Data/Buildings.json"));
+
+        Container.Verify();
+        GD.Print("[DI] Simple Injector container initialized and verified.");
+    }
+}