fix(workplans): adopt ADR-007 derived identifiers for unregistered records

These workplans exist only in the retired local hub. Their random pre-ADR-007
identifiers are refused by C-06 as stale references, so they cannot be
registered. Deriving from the canonical record id takes no identity from
anything: central does not hold them and the old ids die with the cache.

Records central already holds were deliberately left untouched.

Refs CUST-WP-0068-T06

workplans/CUST-WP-0056-daily-todo-md-stale-review.md

@@ -9,7 +9,7 @@ owner: codex
 topic_slug: custodian
 created: "2026-07-08"
 updated: "2026-07-08"
-state_hub_workstream_id: "2175f964-021c-4a2e-b2e7-1fe5d1a90ce1"
+state_hub_workstream_id: "8357f6ea-4741-5189-bf0a-2625a1ca58dc"
 ---
 
 # CUST-WP-0056 — Daily TODO.md Stale Review via activity-core
@@ -26,7 +26,7 @@ reviewed and durable items promoted to workplans (ADR-001).
 id: CUST-WP-0056-T01
 status: done
 priority: high
-state_hub_task_id: "4bf871d0-1520-4d1a-810e-e30f7fa8cd10"
+state_hub_task_id: "a90513e2-5124-578c-8bb4-49c3683a1c0b"
 ```
 
 - `GET /repos/todo-md-staleness?stale_days=6` on State Hub
@@ -39,7 +39,7 @@ state_hub_task_id: "4bf871d0-1520-4d1a-810e-e30f7fa8cd10"
 id: CUST-WP-0056-T02
 status: done
 priority: high
-state_hub_task_id: "252ef449-11ab-4867-b0b0-5d2750aa01ef"
+state_hub_task_id: "1fb3ce8b-8bf5-50c8-a671-d3146d05d820"
 ```
 
 - Resolver query `todo_md_staleness` in activity-core `state_hub.py`
@@ -52,7 +52,7 @@ state_hub_task_id: "252ef449-11ab-4867-b0b0-5d2750aa01ef"
 id: CUST-WP-0056-T03
 status: done
 priority: medium
-state_hub_task_id: "da496029-5364-42ac-8a87-fd16d3263103"
+state_hub_task_id: "f456d5ae-0893-59d4-b1f2-f1a187359158"
 ```
 
 - Confirmed no `STATE.md` files across workstation repos