The reviewer pool was the only place naming harness+model combos, and
blitz kept its own table inline. `reviewers` becomes `agents`, gains
`roles` and `tiers`, and blitz routes from it via scripts/roster.sh.
Config path moves to ~/.config/agent-skills/; the reviewer path stays
readable so a box migrates with a mv.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Miguel Palhas