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/AIWhenPlayAttachStyle.cs

@@ -0,0 +1,51 @@
+using System.Collections.Generic;
+
+namespace Wizard;
+
+public class AIWhenPlayAttachStyle : AIWhenPlayTagArgument
+{
+	private readonly char[] POLICY_TRIM_CHARS = new char[3] { '{', '}', ' ' };
+
+	public AIPolicyData Policy { get; private set; }
+
+	public AIWhenPlayAttachStyle(string text)
+		: base(text)
+	{
+	}
+
+	protected override void InitExpressions(string text)
+	{
+		base.SelectType = AIScriptTokenArgType.NONE;
+		base.Filters = null;
+		string[] words = SplitTextToWords(text);
+		InitializePolicyFromWords(words);
+	}
+
+	public override void Execute(AIVirtualCard tagOwner, AIVirtualField field, List<int> playPtn, AISituationInfo situation = null)
+	{
+		if (field.IsLatestActionField)
+		{
+			field.StyleQuery.ExecuteAttachStyle(Policy);
+		}
+	}
+
+	private void InitializePolicyFromWords(string[] words)
+	{
+		AIPolicyDataAsset aIPolicyDataAsset = new AIPolicyDataAsset();
+		aIPolicyDataAsset.Category = words[0].Trim(POLICY_TRIM_CHARS);
+		if (int.TryParse(words[1].Trim(POLICY_TRIM_CHARS), out var result))
+		{
+			aIPolicyDataAsset.Priority = result;
+		}
+		else
+		{
+			AIConsoleUtility.LogError("AIWhenPlayAttachStyle Priority Argument Error!! " + words[1]);
+			aIPolicyDataAsset.Priority = 0;
+		}
+		aIPolicyDataAsset.Type = words[2].Trim(POLICY_TRIM_CHARS);
+		aIPolicyDataAsset.Arg = words[3].Trim(POLICY_TRIM_CHARS);
+		aIPolicyDataAsset.Cond = words[4].Trim(POLICY_TRIM_CHARS);
+		aIPolicyDataAsset.ID = -1;
+		Policy = new AIPolicyData(aIPolicyDataAsset);
+	}
+}