/// Exception thrown when Firebase service operations fail.
/// 
/// Note: This is different from Firebase SDK's FirebaseException.
/// This exception is used for our FirebaseService wrapper.
class FirebaseServiceException implements Exception {
  /// Error message.
  final String message;

  /// Creates a [FirebaseServiceException] with the provided message.
  FirebaseServiceException(this.message);

  @override
  String toString() => 'FirebaseServiceException: $message';
}