G12 dc1: SEC-016 power key wired + commissioning 9/9 READY -- [V] leg complete ...

- SEC-016 dedicated dc1 MAAS->libvirt power key minted, authorized on the
  rack, installed in the region MAAS snap (per-host ssh config; dc0 SEC-012
  key untouched -- true per-DC isolation); manifest updated (creds-audit CLEAN)
- maas-node-power.sh --commit: power_type=virsh on all 9, each verified by a
  real query-power-state (proves the SEC-016 region->rack path)
- commissioned all 9 -> ALL 9 READY in ~3.5 min (no timeout, no SERVFAIL),
  shapes EXACT to D-121 Option C; dc0's two stacked faults pre-empted by
  pinned MACs + the dc-rack-net forwarder
- G12 [V] leg (dc1 build) COMPLETE; NEXT is close-out + operator-gated merge

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VUjEb7onHpdqFHUnio6iVw