Completed update IDs lived only in the adapter's memory. The gateway
reconnect watcher builds a new TelegramAdapter and connects it with
is_reconnect=True, which keeps Telegram's pending queue, and a new PTB
Updater polls from offset 0. Telegram then resends every update whose
acknowledgement (the next getUpdates offset, or the cleanup call in
Updater.stop) never landed, and the fresh adapter admitted them again.
Write completed IDs to telegram_update_receipts_<bot_id>.json in the
adapter's Hermes home and seed admission from it once per bot. Receipts
older than 24h are dropped: the Bot API keeps unconfirmed updates no
longer than that, and it keeps the lookup clear of the random ID restart
Telegram may do after a week without updates. Writes are coalesced and
run off the loop; disconnect waits for the last one.
Refs #68502
Co-authored-by: Joe Githler <5716896+NoTimeforInfinity@users.noreply.github.com>
a1838ea87a