Symptom
-------
Click "Unpair" on a connected account. The web action sets
\`status='unpaired'\`, but the account detail page often still shows
"Disconnected" — and on accounts that had been previously connected,
the QR pair flow restarts a few seconds later all on its own.
Cause
-----
Two races inside the session manager:
1. The web's \`unpairAccountAction\` notifies the bot via \`pg_notify\`
and then writes \`status='unpaired'\` to the row. The bot's
\`handleUnpair\` calls \`sessionManager.stop()\` which closes the
Baileys socket; Baileys eventually fires a \`connection: close\`
event which the manager's \`handleEvent\` translates into a
\`status='disconnected'\` UPDATE. Whichever write lands second wins.
The user clicks Unpair and sees Disconnected.
2. The same close-event handler schedules a 5-second
\`stop().then(start())\` reconnect for accounts whose
\`lastConnectedAt\` is set. Five seconds after unpair, the bot
silently re-opens the socket, the row flips to \`pending\`, and the
QR carousel restarts.
Fix
---
\`stop(accountId, { intentional: true })\` marks the account in a new
\`intentionalStops\` Set. When the close event lands, \`handleEvent\`
drains the flag (with \`Set.delete()\` returning whether the key was
present, so it's exactly-once and a stale flag can't bleed into a
later session) and skips both the DB UPDATE and the reconnect
schedule. The caller — only \`handleUnpair\` for now — is the one
choosing the row's next state, so we step out of its way.
The flag is set ONLY when callers ask for it. Internal recoveries
(restartRequired auto re-open, ephemeral-close back-off) keep the
default behaviour and continue to write \`disconnected\` + reschedule.
Drive-bys
---------
- Refresh the stale "the row is gone by the time we run" comment in
unpair-handler — the row stays alive now (the operator can re-pair
without retyping the label). Look up the account first so the
audit log carries the real \`operatorId\` instead of \`null\`. The
delete-account flow really does delete the row before notifying us;
the lookup tolerates that and falls back to \`null\`.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>