AddTorrentParams

The add-a-torrent payload produced by LoadTorrent. This is the pure-Kotlin analogue of the fields libtorrent's load_torrent_* functions populate in an add_torrent_params (src/load_torrent.cpp, update_atp).

In libtorrent, load_torrent_buffer / load_torrent_file build a torrent_info and then drain the non-info-dictionary metadata (trackers, web seeds, DHT nodes) out of it into the surrounding add_torrent_params, so the session sees a single object with both the torrent and its session-level hints. KiteTorrent has no session type yet, so the same drained view is bundled here alongside the ti it came from.

The fields are the ones update_atp moves across:

• trackers / trackerTiers ← the announce URLs and their tiers,

• urlSeeds ← web_seed_entry::url_seed entries (BEP 19),

• dhtNodes ← the nodes bootstrap list,

• infoHashes convenience pair ← ti->info_hashes().

Per-file merkle tree reconstruction and piece-layer verification (the second half of update_atp) are not reproduced here. See the note in LoadTorrent.