Archives documents for the caller's company. Archiving is per company: the documents are hidden from the caller only and stay visible to every other company that can see them. Ids the caller cannot see (not public, not owned by or filed on the caller, not shared with it and approved) are skipped silently, as are ids it has already archived, so the call is idempotent. Responds with the ids this call newly archived, and publishes them so the documents are removed from the caller's cascade-tracing nodes.