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/MatchingIntervalActionBase.cs

@@ -0,0 +1,31 @@
+using System;
+using Cute;
+
+public class MatchingIntervalActionBase
+{
+	protected DateTime _startTimer;
+
+	protected Matching _matching;
+
+	protected bool _isActive;
+
+	public MatchingIntervalActionBase(Matching matching)
+	{
+		_matching = matching;
+	}
+
+	public virtual void Start()
+	{
+		_startTimer = TimeUtil.GetAbsoluteTime();
+		_isActive = true;
+	}
+
+	public virtual void Stop()
+	{
+		_isActive = false;
+	}
+
+	public virtual void Update()
+	{
+	}
+}