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/AIWhenPlayRecoverPp.cs

@@ -0,0 +1,56 @@
+using System.Collections.Generic;
+
+namespace Wizard;
+
+public class AIWhenPlayRecoverPp : AIWhenPlayTagArgument
+{
+	private readonly int NUM_ARG_OFFSET = 1;
+
+	private AIPolishConvertedExpression _numberArgument;
+
+	public AIWhenPlayRecoverPp(string text)
+		: base(text)
+	{
+	}
+
+	protected override void InitExpressions(string text)
+	{
+		base.InitExpressions(text);
+		_numberArgument = _exprList[_exprList.Count - NUM_ARG_OFFSET];
+	}
+
+	protected override void InitializeFilter()
+	{
+		base.Filters = null;
+	}
+
+	protected override void InitSelectType()
+	{
+		base.SelectType = AIScriptTokenArgType.NONE;
+	}
+
+	public int GetPlayRecoverPp(AIVirtualCard tagOwner, List<int> playPtn, AIVirtualField field, AISituationInfo situation)
+	{
+		return (int)_numberArgument.EvalArg(tagOwner, playPtn, field, situation);
+	}
+
+	public override void Execute(AIVirtualCard tagOwner, AIVirtualField field, List<int> playPtn, AISituationInfo situation = null)
+	{
+		if (situation == null || situation.ActionType != AIOperationType.PLAY || situation.Actor == null)
+		{
+			return;
+		}
+		int playRecoverPp = GetPlayRecoverPp(tagOwner, playPtn, field, situation);
+		if (playRecoverPp >= 0)
+		{
+			if (tagOwner.IsAlly)
+			{
+				field.AllyPp += playRecoverPp;
+			}
+			else
+			{
+				field.EnemyPp += playRecoverPp;
+			}
+		}
+	}
+}