feat(battle-engine): close the AI-simulation subsystem (verbatim)

Copied the 89 uncopied AI*SimulationUtility/extension files defining the
AIVirtualCard/AIVirtualField extension methods; the compile loop then auto-closed
the revealed type deps (~3049 files total, drift-clean). 10.0k -> 62 errors.

SVSim.BattleEngine/Engine/Cute/DataMigration.cs

@@ -0,0 +1,74 @@
+using Wizard;
+
+namespace Cute;
+
+public class DataMigration
+{
+	public enum status
+	{
+		NONE,
+		OVER,
+		FAIL
+	}
+
+	private static bool inProgress;
+
+	public static bool canCombine()
+	{
+		if (Certification.ViewerId != 0)
+		{
+			return true;
+		}
+		return false;
+	}
+
+	public static void CombineStart(string url)
+	{
+		BrowserURL.Open(url);
+		inProgress = true;
+	}
+
+	public static bool isCombineSucceed()
+	{
+		if (Toolbox.SavedataManager.GetInt("COMBINED") != 1)
+		{
+			return false;
+		}
+		return true;
+	}
+
+	public static bool isProgressing()
+	{
+		return inProgress;
+	}
+
+	public static void ProgressOver()
+	{
+		inProgress = false;
+		URLScheme.Clear();
+	}
+
+	public static void CombineSucceed()
+	{
+		Toolbox.SavedataManager.SetInt("COMBINED", 1);
+	}
+
+	public static void CombineFailed()
+	{
+	}
+
+	public static void MigrationStart(string url)
+	{
+		BrowserURL.Open(url);
+		inProgress = true;
+	}
+
+	public static void MigrationSucceed()
+	{
+		CombineSucceed();
+	}
+
+	public static void MigrationFailed()
+	{
+	}
+}