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/Wizard/GatheringRoomEnterTournamentRoomTask.cs

@@ -0,0 +1,43 @@
+using Cute;
+
+namespace Wizard;
+
+public class GatheringRoomEnterTournamentRoomTask : BaseRoomBattleEnterRoomTask
+{
+	private GatheringInfo _gatheringInfo;
+
+	public GatheringAutoJoinTaskInfo GatheringAutoJoinTaskInfo { get; private set; }
+
+	public GatheringRoomEnterTournamentRoomTask(GatheringInfo gatheringInfo)
+	{
+		_gatheringInfo = gatheringInfo;
+		base.type = ApiType.Type.GatheringRoomEnterRoomForTournament;
+	}
+
+	protected override int Parse()
+	{
+		if (base.ResponseData.TryGetValue("data", out var value) && value.IsObject && value.TryGetValue("is_owner", out var value2))
+		{
+			bool flag = false;
+			if (value.TryGetValue("oppo_info", out var value3))
+			{
+				flag = value3 != null;
+			}
+			if (value2.ToInt() != 0 && value.Keys.Contains("result_reason") && !flag)
+			{
+				value["result_reason"] = "-1";
+			}
+		}
+		int num = base.Parse();
+		if (num != 1)
+		{
+			return num;
+		}
+		GatheringAutoJoinTaskInfo = new GatheringAutoJoinTaskInfo(base.ResponseData, this, _gatheringInfo);
+		if (GatheringAutoJoinTaskInfo.IsOwner)
+		{
+			CustomPreference.SetNodeServerURL(value["node_server_url"].ToString());
+		}
+		return num;
+	}
+}