The operator's ask: an invite link sent by mail, the key in the URL, and
the new user choosing their own username, password and email.
- user_invites (migration 0037): the key's sha256 only, the address, the
role and days the admin chose, who sent it, used/revoked.
- core/invites: create (revokes an older open invite to the address),
renew (new key, new clock), find_pending, the four states, signup checks.
- /invite/<key>, outside sign-in and throttled like login: the invitee's
username, email (prefilled, theirs to change) and password; the account
takes the admin's role, the key is used up in the same transaction and
they are signed in. A bad key gets one plain message.
- Settings › Users: Invite by email (address, role, 1/7/30 days), sent from
the admin in their zone; without a mail server, or if sending fails, the
link is shown once to copy. Invites not yet used are listed with Resend
and Withdraw.
- Audit: user.invited, user.invite_resent, user.invite_revoked, user.joined.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
