fix: SSO 로그인 리다이렉션 로직의 신뢰성 강화 및 환경변수 설정 보완 #243

userfront/lib/core/services/web_auth_integration_web.dart

@@ -51,5 +51,9 @@ bool implIsPopup() {
   
   // Fallback: Check query parameters for integration source
   final uri = Uri.base;
-  return uri.queryParameters['source'] == 'adminfront';
+  if (uri.queryParameters['source'] == 'adminfront') return true;
+
+  // Manual parse fallback for cases where Uri.base might miss params due to hash routing
+  final search = html.window.location.search;
+  return search.contains('source=adminfront');
 }