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.Scripts.Network.Data.TableData.Ranking/RankingPeriod.cs

@@ -0,0 +1,70 @@
+using System;
+using LitJson;
+
+namespace Wizard.Scripts.Network.Data.TableData.Ranking;
+
+public class RankingPeriod
+{
+	public int id;
+
+	public int periodNum;
+
+	public bool hasHistory;
+
+	public DateTime beginTime;
+
+	public string endTime;
+
+	public int _detailType;
+
+	public int IsAfter460;
+
+	private const string TYPE_KEY = "type";
+
+	private const string KEY_460 = "over_460";
+
+	public RankingPeriod()
+	{
+		Initialize();
+	}
+
+	public bool IsSamePeriod(RankingPeriod time)
+	{
+		if (time.beginTime == beginTime)
+		{
+			return time.endTime == endTime;
+		}
+		return false;
+	}
+
+	public RankingPeriod(JsonData data)
+	{
+		if (data == null)
+		{
+			Initialize();
+			return;
+		}
+		id = data["id"].ToInt();
+		periodNum = data["period_num"].ToInt();
+		hasHistory = true;
+		beginTime = DateTime.Parse(data["begin_time"].ToString());
+		endTime = data["end_time"].ToString();
+		if (data.Keys.Contains("type"))
+		{
+			_detailType = data["type"].ToInt();
+		}
+		if (data.TryGetValue("over_460", out var value))
+		{
+			IsAfter460 = value.ToInt();
+		}
+	}
+
+	private void Initialize()
+	{
+		id = 0;
+		periodNum = 0;
+		hasHistory = false;
+		beginTime = new DateTime(0L);
+		endTime = "";
+	}
+}