/* a device that has just been installed: an empty database. Not an
       error and not a refusal — `pipeline::init` scans the sandbox root
       at startup and honestly finds nothing in it, so every one of these
       answers with an empty list. Everything else below answers exactly
       as it always did: this is the same mock with nothing in it yet. */
    if (fresh && (cmd === "library_albums" || cmd === "library_album_stats" || cmd === "recent_albums"
        || cmd === "followed_artists" || cmd === "list_playlists" || cmd === "library_track_index"
        || cmd === "library_track_search" || cmd === "contacts_meta_list" || cmd === "buddy_list")) return Promise.resolve([]);