Add door interaction system with state management and event publishing

GameCore/Events/DoorLockedEvent.cs

@@ -0,0 +1,10 @@
+using GameCore.ECS;
+using GameCore.Events.Interfaces;
+
+namespace GameCore.Events;
+
+public readonly struct DoorLockedEvent(Entity doorEntity, Entity interactor) : IEvent
+{
+    public readonly Entity DoorEntity = doorEntity;
+    public readonly Entity Interactor = interactor;
+}