dev.knotless.archiveRepo

Sets or drops `archivedAt` on the repository's dev.knotless.repo record, as `knotless repo archive` does. While it is archived, pushes and commits to it are refused, and so is anything more said about it, and runners leave it. Its owner can, logged in to this appview's web pages: the appview writes with the session it keeps for that account, which the pages' session cookie names. For an organization's repository, so can an admin who joined it, logged in to the pages or with a service token from their own PDS for this method: the appview's gateway, which the organization delegated its writes to, writes as the organization.