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/DamageCutInfo.cs

@@ -0,0 +1,24 @@
+public class DamageCutInfo
+{
+	public enum DamageType
+	{
+		ALL,
+		SKILL
+	}
+
+	public int CutAmount { get; private set; }
+
+	public DamageType Type { get; private set; }
+
+	public BattleCardBase OwnerCard { get; private set; }
+
+	public string DuplicateBanSkillNum { get; private set; }
+
+	public DamageCutInfo(int amount, DamageType type, BattleCardBase ownerCard, string _duplicateBanSkillNum)
+	{
+		CutAmount = amount;
+		Type = type;
+		OwnerCard = ownerCard;
+		DuplicateBanSkillNum = _duplicateBanSkillNum;
+	}
+}