feat(client): pay 支付领域模型 + PaymentApi + 支付流控制器(轮询 activated)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013nMthbVEmQquxBRKb9Fj8u
2026-07-10 23:19:57 +08:00
parent 16b8823f1f
commit e66f79fdf6
7 changed files with 456 additions and 1 deletions
@@ -14,12 +14,16 @@ class AuthApiException implements Exception {
    required this.statusCode,
    required this.messageZh,
    required this.messageEn,
+    this.code,
  });

  final int statusCode;
  final String messageZh;
  final String messageEn;

+  /// 服务端 apierr 的机器码(如 CURRENCY_MISMATCH),旧调用点可空。
+  final String? code;
+
  @override
  String toString() => 'AuthApiException($statusCode): $messageZh';
 }