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/ITC-WP-0016-practice-pattern-language.md

@@ -17,7 +17,7 @@ spec_refs:
   - infospace/patterns/InterfaceDeprecationStrangler.md
   - infospace/schemas/practice-pattern.schema.yaml
   - arc-nexus/README.md
-state_hub_workstream_id: "8802c143-78fa-42c5-9053-aebc94ff414e"
+state_hub_workstream_id: "333d0ab9-cd9d-54a1-94ee-719fec419c90"
 ---
 
 # ITC-WP-0016 — PracticePattern language
@@ -35,7 +35,7 @@ Christopher Alexander's pattern-language method, seed it with the proven
 id: ITC-WP-0016-T01
 status: done
 priority: high
-state_hub_task_id: "4e581485-52cc-4de6-86ac-8876104df930"
+state_hub_task_id: "f0bdca33-246b-5796-bdda-0ab018a411fe"
 ```
 
 Define the identity, lifecycle, required frontmatter, required problem/forces/
@@ -49,7 +49,7 @@ canon validation for the contract.
 id: ITC-WP-0016-T02
 status: done
 priority: high
-state_hub_task_id: "f94abadb-26e1-49cf-bf0a-7d6b7bbe6b2e"
+state_hub_task_id: "7b02cde0-3208-5f69-87c8-2b9ccc0cbde4"
 ```
 
 Capture the reusable practice independently of State Hub: its context, forces,
@@ -62,7 +62,7 @@ consequences, adoption checklist, and known use in State Hub.
 id: ITC-WP-0016-T03
 status: done
 priority: medium
-state_hub_task_id: "ca98c387-25f4-4493-9f83-1b91269ee584"
+state_hub_task_id: "8aa4de40-27a8-5a73-8ead-5b9a7b9f595a"
 ```
 
 Register the scheme and pattern in the artifact graph, schema catalog, pattern
@@ -75,7 +75,7 @@ retrieve the named practice without relying on the originating repository.
 id: ITC-WP-0016-T04
 status: done
 priority: medium
-state_hub_task_id: "ff7e1e12-ada5-43ae-8a86-78419fff79ae"
+state_hub_task_id: "eb0c1da1-407a-5616-939d-6b4a6bf1a347"
 ```
 
 State in `arc-nexus` that old architecture interfaces are phased out using the