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/AIScriptFunctionToken.cs

@@ -0,0 +1,33 @@
+namespace Wizard;
+
+public class AIScriptFunctionToken : AIScriptTokenBase
+{
+	public AIScriptTokenFuncType FuncType;
+
+	public int ArgCount;
+
+	public AIScriptFunctionToken(AIScriptTokenFuncType funcType, int refNum)
+		: base(AIScriptTokenType.FUNC, refNum)
+	{
+		FuncType = funcType;
+		ArgCount = refNum;
+	}
+
+	public override AIScriptTokenBase Clone()
+	{
+		return new AIScriptFunctionToken(FuncType, ArgCount);
+	}
+
+	public override bool IsEqual(AIScriptTokenBase token)
+	{
+		if (!(token is AIScriptFunctionToken aIScriptFunctionToken))
+		{
+			return false;
+		}
+		if (FuncType == aIScriptFunctionToken.FuncType)
+		{
+			return ArgCount == aIScriptFunctionToken.ArgCount;
+		}
+		return false;
+	}
+}