export declare function hasDiscoveryUploadMarker(): boolean;
/**
 * When the last successful full discovery upload completed, or undefined if
 * this machine never uploaded one. Drives the daemon's staleness catch-up:
 * laptops that were powered off at the daily task's fixed hour still get a
 * fresh scan shortly after they wake up.
 */
export declare function lastDiscoveryUploadAt(): Date | undefined;
export declare function writeDiscoveryUploadMarker(trigger: string): void;