Replaces the no-op fastify.authenticate stub and the never-implemented
identity/auth login with real bcrypt password verification, JWT session
issuance/verification (reusing the existing JWT_SECRET), and a Redis-backed
revocation denylist for logout. Adds requireRole('ADMIN') to admin-only
configuration writes across 002-009 that previously relied on a decorator
that never actually checked anything. Adds self-identity (GET /auth/me,
re-validated against live account state) and admin-provisioned accounts
(POST /admin/users).
Making the auth check genuinely reject invalid/missing tokens exposed that
~18 pre-existing integration test files called already-gated routes with no
Authorization header (safe against the old no-op stub, broken against a real
one) — fixed via a shared tests/helpers/auth.ts (loginAs/authHeader) and a
file-by-file pass, plus two related SLA-run cleanup races exposed once admin
setup calls in those files' own beforeAll blocks started actually succeeding.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
