/**
 * Return the current year as a zero-padded string in the system timeZone.
 *
 * - Uses Temporal.Now.zonedDateTimeISO to get current year in system timezone.
 * - Returns zero-padded string (e.g., "2024").
 * - Returns "" when system timezone is unavailable.
 *
 * @returns current year string (zero-padded) or "" on invalid
 *
 * @example getYear() // "2024"
 * @example getYear() // "" (when system timeZone unavailable)
 */
export declare function getYear(): string;