/// Base URL for the Cyber Hybrid Hub API (Postgres-backed).
///
/// Override at build/run time:
///   flutter run --dart-define=API_BASE_URL=http://localhost:3000
const String apiBaseUrl = String.fromEnvironment(
  'API_BASE_URL',
  defaultValue: 'http://localhost:3000',
);

/// SignalR hub for real-time incoming questions.
String get questionsHubUrl => '$apiBaseUrl/hubs/questions';