Add audio and particle services, update GamePresenter for game state management

Code/Services/GodotWorldQuery.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using CryptonymThunder.Code.Autoloads;
 using CryptonymThunder.Code.Extensions;
 using CryptonymThunder.Code.Presenters;
@@ -58,4 +59,46 @@ public class GodotWorldQuery(GamePresenter ownerNode) : IWorldQuery
         var rotatedZ = -vector.X * (float)Math.Sin(yawRadians) + vector.Z * (float)Math.Cos(yawRadians);
         return new Vector3(rotatedX, vector.Y, rotatedZ);
     }
+
+    public IEnumerable<Entity> OverlapSphere(Vector3 position, float radius, Entity? ownerToExclude = null)
+    {
+        var spaceState = _godotWorld.DirectSpaceState;
+        var query = new PhysicsShapeQueryParameters3D();
+
+        var sphere = new SphereShape3D();
+        sphere.Radius = radius;
+        query.Shape = sphere;
+        
+        query.Transform = new Transform3D(Basis.Identity, position.ToGodot());
+        
+        query.CollisionMask = 1;
+        query.CollideWithBodies = true;
+        query.CollideWithAreas = false;
+
+        if (ownerToExclude.HasValue)
+        {
+            var ownerPresenter = ownerNode.GetPresenterNode(ownerToExclude.Value);
+            if (ownerPresenter != null)
+            {
+                query.Exclude = [((PhysicsBody3D)ownerPresenter).GetRid()];
+            }
+        }
+
+        var results = spaceState.IntersectShape(query);
+        if (results.Count == 0)
+        {
+            yield break;
+        }
+
+        foreach (var result in results)
+        {
+            if (result["collider"].Obj is Node3D collider)
+            {
+                if (_presenterRegistry.TryGetEntity(collider.GetInstanceId(), out var hitEntity))
+                {
+                    yield return hitEntity;
+                }
+            }
+        }
+    }
 }