Add warp config generator

lib/singbox/model/singbox_config_option.dart

@@ -54,6 +54,8 @@ class SingboxConfigOption with _$SingboxConfigOption {
     required bool enableWarp,
     required WarpDetourMode warpDetourMode,
     required String warpLicenseKey,
+    required String warpAccountId,
+    required String warpAccessToken,
     required String warpCleanIp,
     required int warpPort,
     @OptionalRangeJsonConverter() required OptionalRange warpNoise,

lib/singbox/model/warp_account.dart

@@ -0,0 +1,17 @@
+import 'package:flutter/foundation.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'warp_account.freezed.dart';
+part 'warp_account.g.dart';
+
+@freezed
+class WarpAccount with _$WarpAccount {
+  const factory WarpAccount({
+    required String licenseKey,
+    required String accountId,
+    required String accessToken,
+  }) = _WarpAccount;
+
+  factory WarpAccount.fromJson(Map<String, dynamic> json) =>
+      _$WarpAccountFromJson(json);
+}