Stage 5 dc0: memcached scaled to 3 LIVE (operator-approved) + consumer verify ...

Live scale-up executed on the dc0 rack (operator "Both approved"):
juju add-unit memcached -n 2 --to lxd:1,lxd:2 -m vr1-dc0 (exit 0).

- CONVERGED 3/3 active/idle, one per control node (memcached/0 control-01, /1 control-02,
  /2 control-03; all "Unit is ready and clustered", 11211/tcp). Clean install, no F5 apt-wedge.
  Capture docs/audit/stage5-dc0-memcached-scaleup-20260806.txt.
- Consumer verify (D-121 verify-at-deploy): nova-cloud-controller sees all 3 servers
  (memcache_servers = .115,.166,.165:11211). designate coordination backend_url shows ONE
  (memcached/0) -- designate is workload-blocked pre-Stage-7, so re-check at designate
  activation; recorded, not a scale-up defect.
- bundle.yaml re-staged to the dc0 rack (42845edb == repo HEAD).
- CURRENT-STATE reconciled: memcached config=3 AND live=3.

Record-only commit (the live mutation itself was the add-unit above). repo-lint 0 fail.
Revert of the LIVE state (if ever needed): juju remove-unit memcached/1 memcached/2 -m vr1-dc0.

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