@

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.
@

tests/MrGameEng.Graphics.Tests/CullingTests.cs

@@ -22,7 +22,12 @@ public class CullingTests
     {
         var transform = Transform2D.At(new Vector2(50f, 50f));
 
-        var (center, _) = CullingMath.SpriteBoundingCircle(transform, 64f, 32f, new Vector2(32f, 16f));
+        var (center, _) = CullingMath.SpriteBoundingCircle(
+            transform,
+            64f,
+            32f,
+            new Vector2(32f, 16f)
+        );
 
         Assert.Equal(new Vector2(50f, 50f), center);
     }
@@ -41,7 +46,11 @@ public class CullingTests
     public void BoundingCircle_RegionOverload_MatchesSizeOverload_ForUniformScale()
     {
         var region = new Texture2DRegion(null!, new Rectangle(0, 0, 48, 24));
-        var transform = new Transform2D(new Vector2(10f, 20f), rotation: 0.6f, scale: new Vector2(1.5f, 1.5f));
+        var transform = new Transform2D(
+            new Vector2(10f, 20f),
+            rotation: 0.6f,
+            scale: new Vector2(1.5f, 1.5f)
+        );
         var origin = new Vector2(5f, 7f);
 
         var (centerA, radiusA) = CullingMath.SpriteBoundingCircle(transform, 48f, 24f, origin);
@@ -59,16 +68,20 @@ public class CullingTests
         var transform = new Transform2D(Vector2.Zero, scale: new Vector2(1f, 3f));
 
         var (_, exact) = CullingMath.SpriteBoundingCircle(transform, 100f, 10f, Vector2.Zero);
-        var (_, conservative) = CullingMath.SpriteBoundingCircle(in transform, region, Vector2.Zero);
+        var (_, conservative) = CullingMath.SpriteBoundingCircle(
+            in transform,
+            region,
+            Vector2.Zero
+        );
 
         Assert.True(conservative >= exact);
     }
 
     [Theory]
-    [InlineData(50f, 50f, true)]    // inside
-    [InlineData(-4f, 50f, true)]    // touching from the left (radius 5)
-    [InlineData(-20f, 50f, false)]  // far left
-    [InlineData(50f, 130f, false)]  // far below
+    [InlineData(50f, 50f, true)] // inside
+    [InlineData(-4f, 50f, true)] // touching from the left (radius 5)
+    [InlineData(-20f, 50f, false)] // far left
+    [InlineData(50f, 130f, false)] // far below
     public void CircleIntersectsRect_DetectsOverlap(float x, float y, bool expected)
     {
         var rect = new RectF(0f, 0f, 100f, 100f);