Interface ArchiveSink

The cold store the archival mover copies into before deleting — host-provided (WORM bucket, cold database, file store). put must be idempotent per txn id: a crashed mover re-sends its last page before pruning resumes.

interface ArchiveSink {
    put(
        page: readonly ArchivedPosting[],
        options?: CallOptions,
    ): Promise<void>;
}