@

Add MrGameEng.AI utility-AI module; format codebase with CSharpier

New MrGameEng.AI module (ResponseCurve, Consideration, UtilityAction,
UtilityAi selector, Blackboard) plus CSharpier formatting applied across
the whole engine. Documents the CSharpier convention in CLAUDE.md.
@

src/MrGameEng.UI/SceneUiExtensions.cs

@@ -1,8 +1,8 @@
 using Friflo.Engine.ECS.Systems;
 using Microsoft.Xna.Framework;
+using MrGameEng.Core;
 using Myra;
 using Myra.Graphics2D.UI;
-using MrGameEng.Core;
 
 namespace MrGameEng.UI;