Stage 5 dc0 F4: 14/14 HA now measurement-backed + vault ha_enabled MEASURED ...

Live read-only capture from the dc0 rack (juju status -m vr1-dc0, D-138 path):
docs/audit/stage5-dc0-juju-status-14of14-20260806.txt.

- 14/14 D-121-enumerated HA apps at scale=3 (per changelog-20260805-d121-ha-scaleup.md:24).
  HONEST SPLIT (GA-R6 E3, not rounded): 12 active/idle; 2 blocked-at-scale=3 on KNOWN
  non-HA items -- octavia (configure-resources) + designate (nameservers). Model-wide
  152 active/idle, 7 blocked, 1 unknown (gss, normal). Converts the CURRENT-STATE
  14/14 line from OPERATOR-ATTESTED to MEASUREMENT-BACKED (C2: measurement wins).
- F4 vault ha_enabled MEASURED: vault status HA Enabled=FALSE x3, storage=mysql,
  unsealed, shared cluster id. CAUSE (measured, corrects a mid-session mis-blame of the
  mysql backend): charm renders storage "mysql" with no ha_enabled and exposes no such
  option (only vip + dns-ha-access-record) -- HA is charm/VIP model, not vault-native.
  CONFIRMS D-121 (v-a) as-built; vault-native/Raft HA stays owned by D-068. No new decision.
- F8 ceph-radosgw RESOLVED: 3 units active/idle "Unit is ready" (prior stale-status converged).
- F9 staging drift MEASURED (re-stage gated, owed at next deploy): dc0 rack bundle.yaml +
  vr1-dc0-vips.yaml STALE vs HEAD; dc1 rack has no ~/repo-stage (HELD).

Revert: git revert this commit (record-only; no live-cloud change was made -- all reads).

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