Call the admins

What it does

Anyone in the group can type /adm (also /admin, /report, or the bare mentions @admin/@adm) to ask the bot to summon its admins. The bot replies with a Yes/No confirmation. Pressing Yes deletes that prompt and posts a single message tagging every admin by username; each admin then also gets a private message telling them they were called, with a button linking back to the moment in the chat. Pressing No, or waiting more than ten minutes before pressing anything, cancels it instead.

Behaviour that must not change

All four v1 triggers work, plus the two bare-word mention forms — nobody needs an admin permission to ask, only Telegram itself gates who can press the confirmation buttons meaningfully (anyone can press them; there is no permission check on the press either, matching v1 exactly). The confirmation expires 600 seconds after it was sent, and pressing it past that point always deletes the prompt and answers "Message too old, use /adm again" — a bare English string, never localised, same as v1. The group ping text and the admin-notification DM text are byte-identical to v1's, including the bot's own username appearing in the group ping whenever the bot itself is an admin (only the DM loop skips the bot, never the mention list).

One thing is deliberately not the same as v1: it used to quietly forward the triggering message to the bot's owner every tenth admin notification. v2 does not do this at all, to anyone, under any circumstance — recorded in the contract alongside the rest of the DM-fan-out behaviour.

The admin notifications are sent by cb-worker, not by the reply that confirms the group ping — a group can have anywhere from one to a few dozen admins, and sequential DMs with a throttle between them do not belong on the path that has to answer Telegram's callback quickly.

How to verify it

qa/features/util_calladms.feature — seven scenarios (the base flow, four alternate-trigger variants, decline, and staleness), run with python scripts/cb.py test. By hand in the sandbox: run /adm in a group with at least one other admin, press the checkmark, and watch the group message tag every admin while each admin's own chat gets a private notification with a "Show message" link back to the group.