chore(state-hub): write back CENG-WP workstream and task IDs

Sync CENG-WP-0001/0002 frontmatter with state-hub after fix-consistency.

workplans/CENG-WP-0001-intent-placeholder.md

@@ -7,6 +7,7 @@ repo: citation-engine
 status: done
 owner: codex
 topic_slug: citation_evidence_mvp
+topic_id: 96fa8e80-9f74-40f2-84cd-644e9747b9ec
 created: "2026-06-21"
 updated: "2026-06-22"
 state_hub_workstream_id: "ccd217a2-572d-435d-9a29-e0a55b6a4311"
@@ -54,6 +55,7 @@ id: CENG-WP-0001-T02
 status: done
 priority: critical
 depends_on: [T01]
+state_hub_task_id: "01c0295a-d524-48cc-848c-d55eefbedbe2"
 ```
 
 Copy the umbrella partitions verbatim:
@@ -71,6 +73,7 @@ id: CENG-WP-0001-T03
 status: done
 priority: high
 depends_on: [T02]
+state_hub_task_id: "aee0fcae-2a26-47a7-be0b-b2940f4c7767"
 ```
 
 Copy `wiki/SharedContracts.md` from the umbrella so enum conformance tests
@@ -85,6 +88,7 @@ id: CENG-WP-0001-T04
 status: done
 priority: critical
 depends_on: [T02, T03]
+state_hub_task_id: "46f76120-e5b3-40ef-b5e3-599db1c4b82b"
 ```
 
 - `pnpm test` — 89 tests pass