Defense in depth for the repo-creation bot: a restricted Gitea account can
only see repositories and organisations it is explicitly added to, so a
leaked repospawner token cannot enumerate or read the rest of the estate.
The repospawner team grant on terraform-git already covers everything the
bot does, so nothing it needs is lost.
repospawner opens repo-creation PRs against terraform-git and needs no other
access, so give it its own identity and a per-repo team instead of adding it to
the org-wide agents team.
- add config/git.unkin.net/user/repospawner.yaml (limited visibility, not admin,
no org/repo creation), mirroring the unkin-agent bot posture
- add config/git.unkin.net/unkin/team/repospawner.yaml granting write on the
terraform-git repository only (include_all_repositories false)
unkin-agent