Key-only root SSH to vr1-dc0-opnsense; GET core/firmware/status 200
(CORE_ABI 26.7) -- first 26.7 revalidation datapoint for the API path.
Five measured console-bootstrap findings recorded (base64 chunking for
serial wrap; tcsh quoting; measured shell_safe include; local_user_set
required to materialize authorized_keys). Rack legs 10.12.4.2/10.12.8.2
added interim; script support queued as a finding.
CURRENT-STATE position updated in this commit (GA-R1/C1).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KiUu1oqt76tWvV4vEC3NAr