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/SkillPreprocessEvolutionEndStop.cs

@@ -0,0 +1,34 @@
+using System;
+using Wizard;
+using Wizard.Battle.View.Vfx;
+
+public class SkillPreprocessEvolutionEndStop : SkillPreprocessBase
+{
+	private BattleCardBase _ownerCard;
+
+	public SkillPreprocessEvolutionEndStop(BattleCardBase card)
+	{
+		_ownerCard = card;
+	}
+
+	public override bool IsRight(BattlePlayerReadOnlyInfoPair playerInfoPair, SkillConditionCheckerOption option, bool PreexecutionCheck = false)
+	{
+		return !_ownerCard.IsEvolution;
+	}
+
+	public override VfxBase Start(BattlePlayerPair playerPair, SkillBase skill, SkillProcessor skillProcessor, SkillOptionValue optionValue, SkillConditionCheckerOption checkerOption)
+	{
+		Func<SkillProcessor, VfxBase> callStopOneTime = null;
+		callStopOneTime = delegate(SkillProcessor skillProcessorOneTime)
+		{
+			skill.SkillPrm.ownerCard.OnBeforeEvolve -= callStopOneTime;
+			if (skill is Skill_attach_skill skill_attach_skill)
+			{
+				skill_attach_skill.IsEvolutionEndStop = true;
+			}
+			return StopSkill(skill, skillProcessorOneTime);
+		};
+		skill.SkillPrm.ownerCard.OnBeforeEvolve += callStopOneTime;
+		return NullVfx.GetInstance();
+	}
+}