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/AIRemoveSkill.cs

@@ -0,0 +1,79 @@
+using System.Linq;
+
+namespace Wizard;
+
+public class AIRemoveSkill : AIScriptArgumentExpressions
+{
+	private readonly AIScriptTokenArgType[] LEGAL_TIMING_ARGS = new AIScriptTokenArgType[2]
+	{
+		AIScriptTokenArgType.WHEN_DESTROY,
+		AIScriptTokenArgType.WHEN_CLASH
+	};
+
+	private readonly AIScriptTokenArgType[] LEGAL_TYPE_ARGS = new AIScriptTokenArgType[2]
+	{
+		AIScriptTokenArgType.ALL,
+		AIScriptTokenArgType.KILLER
+	};
+
+	public AIScriptTokenArgType Timing { get; private set; }
+
+	public AIScriptTokenArgType RemoveSkillType { get; private set; }
+
+	public AIRemoveSkill(string text)
+		: base(text)
+	{
+	}
+
+	protected override void InitExpressions(string text)
+	{
+		base.InitExpressions(text);
+		Timing = AIScriptTokenArgType.NONE;
+		RemoveSkillType = AIScriptTokenArgType.NONE;
+		int num = -1;
+		AIScriptTokenArgType legalType = AIScriptTokenArgType.NONE;
+		for (int i = 0; i < _exprList.Count; i++)
+		{
+			if (IsLegalType(_exprList[i], LEGAL_TYPE_ARGS, out legalType))
+			{
+				num = i;
+				RemoveSkillType = legalType;
+				break;
+			}
+		}
+		if (num < 0)
+		{
+			return;
+		}
+		int num2 = -1;
+		for (int j = 0; j < _exprList.Count; j++)
+		{
+			if (IsLegalType(_exprList[j], LEGAL_TIMING_ARGS, out legalType))
+			{
+				num2 = j;
+				Timing = legalType;
+				break;
+			}
+		}
+		_ = 0;
+	}
+
+	private bool IsLegalType(AIPolishConvertedExpression arg, AIScriptTokenArgType[] argArray, out AIScriptTokenArgType legalType)
+	{
+		legalType = AIScriptTokenArgType.NONE;
+		if (arg.TokenList != null && arg.TokenList.Count > 0)
+		{
+			AIScriptTokenBase aIScriptTokenBase = arg.TokenList[0];
+			if (aIScriptTokenBase is AIScriptArgumentToken)
+			{
+				AIScriptTokenArgType argumentType = ((AIScriptArgumentToken)aIScriptTokenBase).ArgumentType;
+				if (argArray.Contains(argumentType))
+				{
+					legalType = argumentType;
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+}