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

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 2583210@bnt-lap001
Assistant-Session: f2bff2d5-e9b2-4338-92ca-10282a927006

workplans/FLEX-WP-0015-tenancy-posture-conformance.md

@@ -15,7 +15,7 @@ related_workplans:
   - FLEX-WP-0011
 created: "2026-08-17"
 updated: "2026-08-19"
-state_hub_workstream_id: "31846b19-c2a3-428e-950b-5985bc9146eb"
+state_hub_workstream_id: "43fe348c-02b9-5d5d-af37-a2d80cfc6e1d"
 ---
 
 # FLEX-WP-0015 - Tenancy posture declaration and inbound caller authentication
@@ -57,7 +57,7 @@ per FLEX-WP-0007).
 id: FLEX-WP-0015-T01
 status: done
 priority: high
-state_hub_task_id: "0a32500d-511a-4bd7-972e-de4cd3e62dd9"
+state_hub_task_id: "ee587988-d29c-5dd8-9417-8af73f627817"
 ```
 
 **Publish posture and answer the review.** Write `tenancy.yaml` and
@@ -69,7 +69,7 @@ corrections. Done 2026-08-17.
 id: FLEX-WP-0015-T02
 status: done
 priority: high
-state_hub_task_id: "b2e87a81-b63d-4be4-ad44-01426b7e6f74"
+state_hub_task_id: "7c906ab5-0b3f-5a73-8561-b29d94f4e634"
 ```
 
 **Close the A0 — authenticate callers of `/v1/check`.** Decide first, build
@@ -192,7 +192,7 @@ said so was corrected to them.
 id: FLEX-WP-0015-T03
 status: done
 priority: medium
-state_hub_task_id: "64eb7652-3b67-4bfb-879b-8588deeec8b5"
+state_hub_task_id: "4f885922-56c9-5d89-b7ab-e61c8d69d67a"
 ```
 
 **Wire or delete `internal/adapters/tenantengine`.** The adapter is complete
@@ -219,7 +219,7 @@ live-role policy must introduce the dependency explicitly.
 id: FLEX-WP-0015-T04
 status: cancel
 priority: low
-state_hub_task_id: "06432560-c28c-4de2-a672-87e74be54a6a"
+state_hub_task_id: "1c05032a-bcae-5a4c-8f4a-c51b30a48807"
 ```
 
 **AuthZEN evaluation endpoint (framework `A4`).** Deliberately deferred, not
@@ -244,7 +244,7 @@ this task and may be worth doing first.
 id: FLEX-WP-0015-T05
 status: done
 priority: medium
-state_hub_task_id: "9195ba20-ab0f-4d75-b293-86978073beb1"
+state_hub_task_id: "702e55bf-b87a-547d-9a2d-bc2ccfee9341"
 ```
 
 **Guard the declaration.** Framework §12 requires verifying the declared