/**
 * Generates a deterministic, page-unique ID for a component.
 * Pattern: `k-{prefix}-{n}` where n increments per prefix.
 *
 * @example
 * nextId('tooltip')       // 'k-tooltip-1'
 * nextId('tooltip')       // 'k-tooltip-2'
 * nextId('notification')  // 'k-notification-1'
 */
export declare function nextId(prefix: string): string;