feat(battle-engine): close the AI-simulation subsystem (verbatim)

Copied the 89 uncopied AI*SimulationUtility/extension files defining the
AIVirtualCard/AIVirtualField extension methods; the compile loop then auto-closed
the revealed type deps (~3049 files total, drift-clean). 10.0k -> 62 errors.

SVSim.BattleEngine/Engine/WrapContentsScrollBarSizeByDirection.cs

@@ -0,0 +1,48 @@
+using UnityEngine;
+
+public class WrapContentsScrollBarSizeByDirection : MonoBehaviour
+{
+	[SerializeField]
+	private UIScrollView _scrollView;
+
+	[SerializeField]
+	private UIWrapContent _wrapContent;
+
+	private UIWidget _uiWidget;
+
+	private void Start()
+	{
+		ContentUpdate();
+	}
+
+	public void ContentUpdate()
+	{
+		if (_uiWidget == null)
+		{
+			SetUpUIWidget();
+		}
+		_uiWidget.pivot = UIWidget.Pivot.TopLeft;
+		int num = _wrapContent.itemSize * (Mathf.Abs(_wrapContent.minIndex - _wrapContent.maxIndex) + 1);
+		float num2 = (float)_wrapContent.itemSize / 2f;
+		switch (_scrollView.movement)
+		{
+		case UIScrollView.Movement.Vertical:
+			_uiWidget.height = num;
+			base.transform.localPosition = new Vector3(0f, num2, 0f);
+			break;
+		case UIScrollView.Movement.Horizontal:
+			_uiWidget.width = num;
+			base.transform.localPosition = new Vector3(0f - num2, 0f, 0f);
+			break;
+		}
+	}
+
+	private void SetUpUIWidget()
+	{
+		_uiWidget = base.gameObject.GetComponent<UIWidget>();
+		if (_uiWidget == null)
+		{
+			_uiWidget = base.gameObject.AddComponent<UIWidget>();
+		}
+	}
+}