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/PaymentPCStartTask.cs

@@ -0,0 +1,42 @@
+namespace Cute;
+
+public class PaymentPCStartTask : NetworkTask
+{
+	protected PCPlatform _platform;
+
+	protected CuteNetworkDefine.ApiType _apiType = CuteNetworkDefine.ApiType.PaymentPCStart;
+
+	public PaymentBase.RefundWarningType NeedRefundWarningType { get; private set; }
+
+	public override string Url => $"{CustomPreference.GetApplicationServerURL()}{CuteNetworkDefine.ApiUrlList[_apiType]}";
+
+	public PaymentPCStartTask()
+	{
+		_platform = new PCPlatformSTEAM();
+	}
+
+	public void SetParameter(string ProductId, bool isAlertAgree, bool isAlertActive)
+	{
+		base.Params = _platform.SetParameter(ProductId, isAlertAgree, isAlertActive);
+	}
+
+	protected override int Parse()
+	{
+		int num = base.Parse();
+		if (num != 1)
+		{
+			return num;
+		}
+		if (base.ResponseData["data"].Count > 0)
+		{
+			_platform.Parse(base.ResponseData["data"]);
+			NeedRefundWarningType = (PaymentBase.RefundWarningType)base.ResponseData["data"]["refund_penalty_type"].ToInt();
+		}
+		return num;
+	}
+
+	public PCPlatform getPCPlatform()
+	{
+		return _platform;
+	}
+}