LIVE: node IPv6 carve both DCs -- 108 links, IPv4 untouched, 18 Ready unchanged ...

Operator-gated dc0 then dc1. 54 applied per DC, 0 errors, read-back 54/54 each.
IPv6 links 0 -> 108; IPv4 links 108 unchanged; 18 Ready unchanged. Both
dc-node-v6-carve gates PASS and dc-plane-ipam still reads 24/24 on both DCs.

The octet mirror holds across all six planes per node -- superb-piglet .121 ->
::121 everywhere, big-trout .100 -> ::100. enp2s0 correctly received nothing: the
D-100 raw provider NIC has no v4 link to mirror, and br-ex carries provider-public
instead, on the node /64 rather than the VIP /64. That falls out of deriving from
"already carries v4" rather than naming planes in a table.

The gate discriminated rather than agreeing with what it found -- it flipped dc0
to PASS while dc1 still read FAIL, before dc1 was carved.

This closes the node half of step 3, which was the correction the operator's
octet-mirror question surfaced: v6 does not arrive with the subnet, because MAAS
mode=static means an explicitly configured address.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf