Account creation moved to admin, which owns accounts, and the marketing
form now posts there. sitesvc keeps the contact mailer only.
DEPLOY LAST: sitesvc's verify endpoint must stay live until every
outstanding pending signup has expired, or an in-flight verification link
breaks. Do not roll this out until the site change has been live 24 hours
and site_pending_signups is empty.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
mrhid6andClaude Opus 5
b86d9ddd86