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/Wizard.Battle.Operation/FusionOperationCommand.cs

@@ -0,0 +1,50 @@
+using System.Collections.Generic;
+using System.Linq;
+using LitJson;
+using Wizard.AutoTest;
+using Wizard.Battle.Recovery;
+using Wizard.Battle.View.Vfx;
+
+namespace Wizard.Battle.Operation;
+
+public class FusionOperationCommand : SkillOperationCommandBase
+{
+	public FusionOperationCommand(JsonData actionJsonData)
+		: base(actionJsonData)
+	{
+	}
+
+	protected virtual BattleCardBase ReplaceCardData(BattleManagerBase battleMgr, BattleCardBase fusionCard)
+	{
+		return fusionCard;
+	}
+
+	public override void Operation(BattleManagerBase battleMgr)
+	{
+		BattleCardBase battleCardBase = battleMgr.GetBattlePlayer(_cardInfo.IsPlayer).HandCardList.SingleOrDefault((BattleCardBase c) => c.Index == _cardInfo.Index);
+		if (battleCardBase == null)
+		{
+			if (!(UIManager.GetInstance().NowOpenDialog != null))
+			{
+				LocalLog.AccumulateTraceLog("Card not found in hand :" + _cardInfo.Index + " " + _cardInfo.Name);
+				RecoveryManagerBase.OpenRecoveryFailedDialog();
+			}
+			return;
+		}
+		battleCardBase = ReplaceCardData(battleMgr, battleCardBase);
+		List<BattleCardBase> list = new List<BattleCardBase>();
+		foreach (SkillTargetInfo skillTargetInfo in _skillTargetInfoList)
+		{
+			AutoTestBattleMgr.CardInfo targetCardInfo = skillTargetInfo.TargetCard;
+			BattleCardBase item = battleMgr.GetBattlePlayer(targetCardInfo.IsPlayer).AllCards.Single((BattleCardBase c) => c.Index == targetCardInfo.Index);
+			list.Add(item);
+		}
+		VfxBase vfx = battleMgr.OperateMgr.FusionCard(battleCardBase, _cardInfo.IsPlayer, list);
+		battleMgr.VfxMgr.RegisterSequentialVfx(vfx);
+	}
+
+	public override string ToString()
+	{
+		return "Operation comp_fusion " + _cardInfo.Name;
+	}
+}