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/AIOtherPlayBonusRate.cs

@@ -0,0 +1,32 @@
+using System.Collections.Generic;
+
+namespace Wizard;
+
+public class AIOtherPlayBonusRate : AIFiltersArgument
+{
+	private AIPolishConvertedExpression _valueArg;
+
+	protected override int NON_FILTER_FIRST_OFFSET => 1;
+
+	public AIOtherPlayBonusRate(string text)
+		: base(text)
+	{
+	}
+
+	protected override void InitExpressions(string text)
+	{
+		base.InitExpressions(text);
+		_valueArg = _exprList[_exprList.Count - NON_FILTER_FIRST_OFFSET];
+	}
+
+	public float GetBonusRate(AIVirtualCard tagOwner, AIVirtualCard targetCard, List<int> playPtn, AISituationInfo situation)
+	{
+		AIVirtualField selfField = tagOwner.SelfField;
+		_ = selfField.ParamQuery;
+		if (_valueArg == null || !AIFilteringUtility.CheckMatchTargetFiltering(targetCard, null, base.Filters, playPtn, tagOwner, situation))
+		{
+			return 1f;
+		}
+		return _valueArg.EvalArg(tagOwner, playPtn, selfField, situation);
+	}
+}