Doc-only spike (no hub code change). Validated on demo-felhom (guest 8200,
torn down): (1) guest->host HTTPS over vmbr0 with fingerprint-pin + bearer +
self-scoping (200/401/403, wrong-pin TLS fail, no firewall rule needed);
(2) config-mount + golden-baked bootstrap unit deploys+runs the controller
(docker login/pull/run v0.34.0) with no pct exec. Verdict: GO to 8A spec.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
