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/SummonedVirtualCard.cs

@@ -0,0 +1,30 @@
+using System.Collections.Generic;
+
+namespace Wizard;
+
+public class SummonedVirtualCard : AIVirtualCard
+{
+	public SummonedVirtualCard(BattleCardBase card, AIVirtualField field)
+		: base(card, field)
+	{
+	}
+
+	protected override void InitializeFromBattleCardBase(BattleCardBase origin)
+	{
+		InitializeFromBattleCardBaseBasic(origin);
+		IsSpell = false;
+		IsLeader = false;
+		if (origin.Tribe != null && origin.Tribe.Count > 0)
+		{
+			for (int i = 0; i < origin.Tribe.Count; i++)
+			{
+				AppendTribe(origin.Tribe[i]);
+			}
+		}
+	}
+
+	public override bool IsFollower(List<int> playPtn)
+	{
+		return IsUnit;
+	}
+}