The notify process's stdin is empty under systemd, so stdio.Serve returned at EOF, main returned, and
systemd restarted it every five seconds: the watch loop never ran long enough to show a notice. The watch
loop now starts beside stdio.Serve in the one process the node's runtime launches and keeps alive, as
mesh-knowledge's serve does. No resource declares a separate notify process any more.
ADR 0227 rule 8 / ADR 0240 rule 2 refuse a module with no health check of
another kind beside a tool check. mesh-mail-notifier has one process
(notify); wiring mail_notifier_health as its manifest health, as the review
note's wording suggested (mirroring mesh-mail's watch/mail_health), trips
that rule because mesh-mail also has keep (kind unit) beside watch.
mail_notifier_health stays built, tested and callable; notify's manifest
health stays kind unit until the lead decides how a one-process module
gets this automatically.
Flush now sorts accounts instead of walking a map, so notice order is
stable. A failed node-notifier.send keeps its mail pending and retries
at most once a minute, without holding up other accounts' notices, and
the failure is kept in the Store for a new health tool
(mail_notifier_health) that is unhealthy past ten minutes of failure.
The burst rule now follows the lead's reading of ADR 0378 S9: within an
account's sliding minute, the first three qualifying mails are shown
one by one and the rest are folded into one notice at the window's
end; there is no separate quiet-gap timer. The dedupe key is the
account and message id, falling back to folder/uidvalidity/uid only
when no message id is given, so a UIDVALIDITY reset cannot suppress a
new mail, and a redelivered event already buffered is never recounted.
status now lists every granted account, not only those with a notice,
and caches mail-store.accounts for a minute.
ADR 0378 §9 as amended by ADR 0379: a module of its own, built from mesh-mail's
event shape, runs as its own account to hear mesh-mail's restricted MAIL stream
(ADR 0376 §2), shows each new inbox mail through node-notifier.send at most
once, folds more than three from one account into one notice, and emits its
own shown event.
jochen