인증수단 세션 확인 추가

userfront/lib/core/services/auth_proxy_service.dart

@@ -1,7 +1,6 @@
 import 'dart:convert';
 import 'package:http/http.dart' as http;
 import 'package:flutter_dotenv/flutter_dotenv.dart';
-import 'auth_token_store.dart';
 import 'http_client.dart';
 import 'web_window.dart';
 
@@ -266,7 +265,6 @@ class AuthProxyService {
     if (token != null && token.isNotEmpty) {
       headers['Authorization'] = 'Bearer $token';
     }
-    final sessionId = _extractSessionIdFromJwt(token ?? AuthTokenStore.getToken() ?? '');
     final client = createHttpClient(withCredentials: true);
     try {
       final response = await client.post(
@@ -274,8 +272,6 @@ class AuthProxyService {
         headers: headers,
         body: jsonEncode({
           'login_challenge': loginChallenge,
-          if (sessionId != null && sessionId.isNotEmpty)
-            'approved_session_id': sessionId,
         }),
       );
 
@@ -290,35 +286,6 @@ class AuthProxyService {
     }
   }
 
-  static String? _extractSessionIdFromJwt(String token) {
-    if (token.isEmpty) {
-      return null;
-    }
-    try {
-      final parts = token.split('.');
-      if (parts.length != 3) {
-        return null;
-      }
-      final payload = utf8.decode(base64Url.decode(base64Url.normalize(parts[1])));
-      final data = json.decode(payload) as Map<String, dynamic>;
-      for (final key in ['sid', 'session_id', 'sessionId', 'jti']) {
-        final value = data[key];
-        if (value == null) {
-          continue;
-        }
-        if (value is String && value.isNotEmpty) {
-          return value;
-        }
-        final converted = value.toString();
-        if (converted.isNotEmpty) {
-          return converted;
-        }
-      }
-    } catch (_) {
-      return null;
-    }
-    return null;
-  }
 
   static Future<Map<String, dynamic>> initiatePasswordReset(String loginId, {bool? drySend}) async {
     final url = Uri.parse('$_baseUrl/api/v1/auth/password/reset/initiate');