Part 6 gains an as-built header rather than a rewrite, so the reasoning that
produced the original design stays legible beside what the build learned.
Four deviations. There was no web notification settings screen to add the Team
list to — `/auth/me/notifications/*` was built for the app in M7 and had zero web
consumers, which is survivable for push and not for a sink whose whole argument is
the web-only user. Email defaults to `off` rather than `digest`, on the org lead's
call: digest-by-default would start mailing every member of every Team the moment
an operator connects Gmail. Roster events tickle but do not email. And a ninth
member joined MODULE_API 1.6.0.
`pageUrlTemplate` is the member, and it exists because phase 3 left core with no
Team page and therefore no way to link to one. It joins 1.6.0 in place under the
rule set in phase 2 — a contract owes a bump only once it has landed on `main`,
and 1.6.0 has only ever been on `edge`.
Two further build decisions are recorded where they belong: the digest computes at
send time and keeps no queue (§6.4), and one-click unsubscribe is a stateless HMAC
whose whole capability is muting one (user, Team) pair (§6.4).
BACKEND_DESIGN gains the table, the two `/auth/me` routes and the unsubscribe
endpoint — the only write in the public tier and the only route with no `siteMode`,
because the mail went out before the site went into maintenance.
Co-Authored-By: Claude <noreply@anthropic.com>