export declare const JOIN_LINK_GENERATION: {
    readonly FALLBACK_CRON: "0 */4 * * *";
    readonly GRACE_MS: number;
    readonly STALE_MS: number;
    readonly FALLBACK_BATCH_LIMIT: 50;
    readonly JOB_POLL_INTERVAL_MS: 2000;
    readonly JOB_POLL_MAX_ATTEMPTS: 150;
};
export declare const JOIN_LINK_GENERATION_LOG: {
    readonly FALLBACK_DISABLED: "Join-link fallback cron disabled (ENABLE_JOIN_LINK_FALLBACK_CRON!=true); skipping sweep";
    readonly FALLBACK_FOUND: (count: number) => string;
    readonly FALLBACK_ITEM_FAILED: (id: number) => string;
    readonly FALLBACK_SWEEP_FAILED: "Join-link fallback sweep failed";
};