feat(battle-engine): full Unity/VFX/god-object shims + expanded copy closure (2570 files)

Authored Unity primitive/object-model shim, VFX layer (control-flow-preserving, InstantVfx never invokes its action -- headless suppression), god-object stubs (GameMgr/EffectMgr/UIManager with faithfully-extracted nested enums), View/UI/Touch tree, LitJson+BetterList+Tuple copied, third-party stubs. Discovered Roslyn header-error masking: fixing class-header type errors unmasks body references, so the true copy closure is ~2570 files (was 782 under masking). Errors: masked-25720 -> 268; our shim files compile clean. Remaining: ~50 residual shim/external types, 24 NGUI UI-base overrides, static-type fixes, plus likely 1-2 more unmask waves.

SVSim.BattleEngine/Engine/Wizard/AIWhenPlaySelect.cs

@@ -0,0 +1,62 @@
+using System.Collections.Generic;
+
+namespace Wizard;
+
+public class AIWhenPlaySelect : AIWhenPlayTagArgument
+{
+	private AISelectLogicArgumentBase _selectLogicArg;
+
+	protected override bool _isSelectCountImplemented => true;
+
+	public override bool IsImmediate => true;
+
+	protected override int SELECT_COUNT_OFFSET => 1;
+
+	public AIWhenPlaySelect(string text)
+		: base(text)
+	{
+	}
+
+	protected override void InitExpressions(string text)
+	{
+		List<string> list = AIPlayTagInitializingUtility.SplitTagText(text);
+		if (list.Count == 0)
+		{
+			AIConsoleUtility.LogError($"{GetType()} のargが不足しています。/n{text}");
+			base.InitExpressions(text);
+		}
+		else
+		{
+			base.InitExpressions(list[0]);
+			_selectLogicArg = AISelectLogicSimulationUtility.CreateSelectLogicArgument(list[1]);
+		}
+	}
+
+	public override void Execute(AIVirtualCard tagOwner, AIVirtualField field, List<int> playPtn, AISituationInfo situation = null)
+	{
+		if (situation != null && situation.IsTargetExists(base.SelectType))
+		{
+			return;
+		}
+		if (_selectLogicArg == null)
+		{
+			AIConsoleUtility.LogError($"{GetType()} error!! _selectLogicArg is null");
+			return;
+		}
+		List<AIVirtualCard> targetsFromField = GetTargetsFromField(tagOwner, field, playPtn, situation);
+		if (targetsFromField != null && targetsFromField.Count > 0)
+		{
+			int selectCount = GetSelectCount(tagOwner, field, playPtn, situation);
+			_selectLogicArg.SetSelectTarget(targetsFromField, selectCount, tagOwner, field, base.SelectType, playPtn, situation);
+		}
+	}
+
+	protected override void CreateLegalSelectTypes()
+	{
+		base.LegalSelectTypes = new AIScriptTokenArgType[2]
+		{
+			AIScriptTokenArgType.TARGET_SELECT,
+			AIScriptTokenArgType.SECOND_TARGET_SELECT
+		};
+	}
+}