The first-DM auto-pair behavior combined with ! shell passthrough meant
the first account to DM the bot gained arbitrary shell access. This
removes that footgun entirely.
- allowedUserId must be set before polling starts; missing config blocks
polling with a TUI warning rather than silently accepting any sender
- TELEGRAM_ALLOWED_USER_ID env var is read on session start and
overwrites the saved config value, so rotating the allowed user is a
restart away
- /telegram-setup now prompts for a numeric user ID after the bot token
if one is not already configured
- Denied senders receive an auth error reply; their numeric ID is also
logged to the pi TUI as a warning so operators can identify themselves
on a fresh install without needing @userinfobot
- Dropped the {kind: "pair"} authorization state entirely; undefined
allowedUserId now produces deny, not pair
- Removed pairTelegramUserIfNeeded, shouldPair, shouldNotifyPaired
Existing installs with allowedUserId already in telegram.json are
unaffected. Fresh installs require explicit configuration.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>