page-visit service

Add one line to any page we send someone:
  <script defer src="https://visits.mark-abella.workers.dev/v.js" data-site="NAME"></script>

Optional per-recipient link, so the log says who opened it:
  https://that-page.example/?to=recruiter-name

Sites allowed to report: tom-proposal, resume, test, parish-invite
Log: /visits?k=<VISITS_KEY>.  Full recipe: README.md next to this Worker.