/** @remarks Test-only reset for preview timing state. */
export declare function resetPreviewTimingForTests(): void;
export declare function notePreviewOpened(): void;
export declare function notePreviewClosed(now?: number, cooldownMs?: number): void;
/**
 * Resolves the effective open delay for a preview trigger.
 *
 * @remarks Once any preview is open, or while still inside the post-close cooldown
 * window, subsequent previews open immediately.
 */
export declare function resolvePreviewOpenDelay(requestedDelay: number, now?: number): number;