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/PrefabMgr.cs

@@ -0,0 +1,143 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class PrefabMgr
+{
+	private Dictionary<string, Object> m_PrefabData;
+
+	private IList<GameObject> m_AddedGameObj = new List<GameObject>();
+
+	public PrefabMgr()
+	{
+		m_PrefabData = new Dictionary<string, Object>();
+	}
+
+	public void Load(string str)
+	{
+		if (!m_PrefabData.ContainsKey(str) && !string.IsNullOrEmpty(str))
+		{
+			m_PrefabData.Add(str, Resources.Load(str));
+		}
+	}
+
+	public IEnumerator LoadAync(string str)
+	{
+		if (!m_PrefabData.ContainsKey(str) && !string.IsNullOrEmpty(str))
+		{
+			ResourceRequest loadRequest = Resources.LoadAsync(str);
+			while (!loadRequest.isDone)
+			{
+				yield return null;
+			}
+			Object asset = loadRequest.asset;
+			m_PrefabData.Add(str, asset);
+		}
+	}
+
+	public void UnLoad(string str)
+	{
+		if (m_PrefabData.ContainsKey(str))
+		{
+			m_PrefabData.Remove(str);
+			Resources.UnloadUnusedAssets();
+		}
+	}
+
+	public void AllUnLoad()
+	{
+		m_PrefabData.Clear();
+		Resources.UnloadUnusedAssets();
+	}
+
+	public GameObject CreateIns(string str)
+	{
+		if (m_PrefabData.ContainsKey(str))
+		{
+			return Object.Instantiate(m_PrefabData[str]) as GameObject;
+		}
+		return null;
+	}
+
+	public GameObject Get(string str)
+	{
+		if (m_PrefabData.ContainsKey(str))
+		{
+			return (GameObject)m_PrefabData[str];
+		}
+		return null;
+	}
+
+	public Texture GetTexture(string str)
+	{
+		if (m_PrefabData.ContainsKey(str))
+		{
+			return (Texture)m_PrefabData[str];
+		}
+		return null;
+	}
+
+	public Sprite GetSprite(string str)
+	{
+		if (m_PrefabData.ContainsKey(str))
+		{
+			return (Sprite)m_PrefabData[str];
+		}
+		return null;
+	}
+
+	public AudioClip GetAudio(string str)
+	{
+		if (m_PrefabData.ContainsKey(str))
+		{
+			return (AudioClip)m_PrefabData[str];
+		}
+		return null;
+	}
+
+	public Object GetObj(string str)
+	{
+		if (m_PrefabData.ContainsKey(str))
+		{
+			return m_PrefabData[str];
+		}
+		return null;
+	}
+
+	public void DebugDraw()
+	{
+		foreach (string key in m_PrefabData.Keys)
+		{
+			_ = key;
+		}
+	}
+
+	public Dictionary<string, Object> GetPrefabData()
+	{
+		return m_PrefabData;
+	}
+
+	public void DisposeAllClonedObject()
+	{
+		for (int i = 0; i < m_AddedGameObj.Count; i++)
+		{
+			Object.DestroyImmediate(m_AddedGameObj[i]);
+			m_AddedGameObj[i] = null;
+		}
+		m_AddedGameObj.Clear();
+	}
+
+	public GameObject CloneObjectToParent(string str, GameObject parentObject)
+	{
+		GameObject gameObject = NGUITools.AddChild(parentObject, GameMgr.GetIns().GetPrefabMgr().Get(str));
+		m_AddedGameObj.Add(gameObject);
+		return gameObject;
+	}
+
+	public GameObject CloneObjectToParent(GameObject gobj, GameObject parentObject)
+	{
+		GameObject gameObject = NGUITools.AddChild(parentObject, gobj);
+		m_AddedGameObj.Add(gameObject);
+		return gameObject;
+	}
+}