Advisor-flagged corrections to cd1f9cd's root-cause record (claims now measured, not inferred):
 - data-tenant confirmed the SAME dual-stack plane on both node types (lib-net.sh PLANE_CIDRS
   10.12.16.0/22=data-tenant, in SPACES6); divergence is address-family SELECTION, not a binding
   error (both chassis types bind data-tenant).
 - tunnel state re-read on vr1-dc0-compute-01 (ovn-chassis/1, the amphora's ACTUAL host): its
   v6 local encap has IPv4 remote_ip to the 3 control chassis -> cross-family, same pattern.
 - softened the bfd_status claim to AMBIGUOUS (OVN geneve may not populate BFD); decisive
   evidence is the encap-family split + 100% ICMPv6 loss. compute<->compute v6 path noted UNTESTED.
 - dropped the pre-allocated "D-143" (number assigned at ruling per grep-for-next-free).

Revert: git revert this commit (records only; no live cloud state changed).

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