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/Country.cs

@@ -0,0 +1,18 @@
+using System.Collections.Generic;
+
+namespace Wizard;
+
+public class Country
+{
+	public readonly string _countryId;
+
+	public readonly string _categoryText;
+
+	private int index = -1;
+
+	public Country(string[] columns, Dictionary<string, string> textDic)
+	{
+		_countryId = columns[++index];
+		_categoryText = textDic[columns[++index]];
+	}
+}