UX improvements driven by live testing:
- setMyCommands populates Telegram's '/' picker with all commands and
descriptions, so the operator gets autocomplete instead of guessing
syntax.
- /start replies with an inline keyboard ([📒 Accounts] [📡 How to Pair]
[❓ Help]) — quick navigation without typing.
- /accounts emits one message per account with [📂 Groups] [🗑 Unpair]
inline buttons. Tapping triggers a callback (no typed labels needed).
- New callbacks module wires the buttons. Unpair shows a confirm/cancel
prompt before acting.
/pair still requires a typed label since the value is operator-defined
content rather than a selection from existing data.
When the operator misses a QR and retries /pair for the same label, the
previous pairing flow (Baileys session in memory + Telegram message id +
event listener) was still alive. Multiple listeners then raced to edit
the same QR message, surfacing as 400 'message is not modified' errors.
Fixes:
- Track one listener per account; new /pair tears down the previous one
- Stop the existing Baileys session and wipe its session dir so the new
attempt starts from a clean slate
- Skip duplicate QR pushes (Baileys can re-emit identical QR strings)
- Fall back to a fresh photo if editMessageMedia fails for any reason
Two pairing-flow fixes after live test:
- Connection Failure during pairing: Baileys announced a stale WhatsApp Web
version that the server rejected before the QR was emitted. Pull the
current version via fetchLatestBaileysVersion() at session start.
- Telegram mobile auto-converts straight quotes to curly quotes, so labels
like /pair "test 1" arrived as “test 1” and the curly quotes were never
stripped. Extend the quote-stripping regex on /pair, /unpair, /groups.
