/**
 * Safe timer wrappers — auto-cleared on destroy().
 */
export declare class TimerManager {
    private readonly intervals;
    private readonly timeouts;
    safeSetInterval(fn: () => void, ms: number): ReturnType<typeof setInterval>;
    safeClearInterval(id: ReturnType<typeof setInterval>): void;
    safeSetTimeout(fn: () => void, ms: number): ReturnType<typeof setTimeout>;
    safeClearTimeout(id: ReturnType<typeof setTimeout>): void;
    destroy(): void;
}