fix(workplans): restore identifiers for records already on central

A repo-wide re-key overwrote the identifiers of eight workplans that were
correctly registered, breaking their link to the live records. Restored by
matching the canonical record id against central's slugs.

Re-keying is only safe for records central does not hold.

Refs CUST-WP-0068-T06

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

workplans/KAIZEN-WP-0008-coulomb-loop-supplier-engagement.md

@@ -44,7 +44,7 @@ tasks:
   - id: T10
     status: done
     title: Update CHANGELOG wiki and cross-link coulomb-loop INTENT
-state_hub_workstream_id: "92194805-6b36-5d15-ad2e-cc039dbdbc14"
+state_hub_workstream_id: "80f473eb-d052-4f50-a633-806f03c469be"
 ---
 
 # KAIZEN-WP-0008 — Coulomb-loop Supplier Engagement