feat(battle-engine): M1 auto-copy closure (782 battle-logic files)

Compile-driven bulk-copy loop (tools/engine-port/m1_copy_loop.py) pulled the precise reference closure of the battle-core roots, stopping at the classify god-object/View-VFX-UI boundary. 782 files; no re-explosion (M0 had estimated ~order 1000). Residual frontier = 52 shim-classified + 80 external (Unity/BCL) types to author next.

SVSim.BattleEngine/Engine/Wizard/SelectSkinCardInfo.cs

@@ -0,0 +1,36 @@
+using System.Collections;
+using System.Collections.Generic;
+using LitJson;
+using Wizard.Scripts.Network.Data.TaskData.Arena;
+
+namespace Wizard;
+
+public class SelectSkinCardInfo
+{
+	public int CardId { get; private set; }
+
+	public CardBasePrm.ClanType Class { get; private set; }
+
+	public int SkinId { get; private set; }
+
+	public bool HasSkin { get; private set; }
+
+	public List<Wizard.Scripts.Network.Data.TaskData.Arena.Reward> RewardList { get; private set; }
+
+	public SelectSkinCardInfo(JsonData data, CardBasePrm.ClanType classType)
+	{
+		CardId = data["card_id"].ToInt();
+		Class = classType;
+		SkinId = data["leader_skin_id"].ToInt();
+		HasSkin = data["has_leader_skin"].ToBoolean();
+		RewardList = new List<Wizard.Scripts.Network.Data.TaskData.Arena.Reward>();
+		if (!data.TryGetValue("reward_list", out var value))
+		{
+			return;
+		}
+		foreach (JsonData item in (IEnumerable)value)
+		{
+			RewardList.Add(new Wizard.Scripts.Network.Data.TaskData.Arena.Reward(item));
+		}
+	}
+}