export function getErrorMessage(error: unknown, fallback = 'Произошла ошибка'): string {
  if (error && typeof error === 'object' && 'response' in error) {
    const axiosErr = error as { response?: { data?: { error?: string } } }
    if (axiosErr.response?.data?.error) return axiosErr.response.data.error
  }
  if (error instanceof Error && error.message) return error.message
  return fallback
}