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/DeckFrame.cs

@@ -0,0 +1,10 @@
+using UnityEngine;
+
+public class DeckFrame
+{
+	public int DeckId { get; set; }
+
+	public Transform Transform { get; set; }
+
+	public Vector3 TweenTargetPosition { get; set; }
+}