docs: advance remaining state hub workplans

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a053ff-1d6f-7fe2-ac1c-a6eb40a42a0c

workplans/STATE-WP-0079-retirement-strangler.md

@@ -8,7 +8,7 @@ status: active
 owner: codex
 topic_slug: infotech
 created: "2026-08-09"
-updated: "2026-08-23"
+updated: "2026-08-31"
 parent_project: prj-state-hub-retirement
 parent_workplan: SHR-WP-0001
 related:
@@ -448,6 +448,19 @@ workplans restored from `launching/immediate` to `manual/manual`.
 Focused execution coverage passes (`4 passed`); the combined full regression
 and dashboard build remains green (`650 passed`).
 
+**Central meter review 2026-08-31.** The corrected seven-day review found six
+replacement-verified interfaces past their volume-scaled quiet period. They
+were marked retired on the sole `railliance01` primary: the old workstream
+completion event subject, `DELETE /workstreams/{id}`, two low-volume SBOM
+compatibility reads, `GET /workstreams/workplan-index`, and
+`POST /workstreams/{id}/dependencies/`. The recapture now reports 6 retired,
+9 legacy, and zero currently eligible candidates. The remaining nine include
+live SBOM callers, live `GET /tasks/?workstream_id`, the three high-volume
+workstream reads still inside their 60-day quiet window, and two workstream
+mutations still inside 30 days. Evidence:
+`docs/evidence/legacy-meter-weekly-review-20260831.json`. T05 remains
+`progress`; T06 must not start.
+
 ## Stabilization window and archive prep
 
 ```task