Operator ruled dc1 node-handling "Rebuild fresh into dc1-region". Measured:
dc1's full set is in the Office1 region (9 nodes+juju Ready; .6/.7 Failed
commissioning on unset-power). Bootstrapped the .6 region VM (Office1-side,
like dc0 hot-kid): power set, renamed normal-piglet->vr1-dc1-maas-01
(convention), recommissioned -> Ready (a transient virsh-login error
cleared on retry).

Researched + recorded the MAAS 3.7 region+rack install/init (changelog
Item 7; matches Office1 3.7.2 + PostgreSQL 16; external DB required;
createadmin=SEC-020 operator one-shot). Remaining next-session: extend
aux-carve for -maas-01 + carve .6 (10.12.68.6 + 10.12.64.6) before deploy
(hot-kid under-carve lesson); deploy jammy; MAAS init one-shot; register
region + config via tested tools; rebuild 9 nodes+juju+.7 fresh into it.

CURRENT-STATE dc1 block + ledger NEXT updated. repo-lint 0 fail.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Fg98z7QyzwYUs8fsWCn728