chore: sync state-hub brief after WP-0008 T03/T04 completion

fix-consistency writeback: task status drift resolved in hub DB.

.custodian-brief.md

@@ -2,23 +2,22 @@
 # Custodian Brief — kaizen-agentic
 
 **Domain:** custodian
-**Last synced:** 2026-06-18 02:54 UTC
+**Last synced:** 2026-06-18 08:53 UTC
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
 ### Coulomb-loop supplier engagement (customer-repo playbook)
-Progress: 1/10 done  |  workstream_id: `80f473eb-d052-4f50-a633-806f03c469be`
+Progress: 3/10 done  |  workstream_id: `80f473eb-d052-4f50-a633-806f03c469be`
 
 **Open tasks:**
 - · Document customer engagement repo layout  `177bb16c`
 - · Playbook skeleton  `90bd0fc2`
-- · metrics record --emit-event  `26ee0f8d`
-- · schedule init --engagement  `62324bd2`
 - · ADR-006 customer engagement convention  `5c06cdd9`
 - · Tests  `f45077ea`
 - · Absorb supplier-notes into playbook v1  `0ef49fb5`
-- … and 2 more open tasks
+- · ActivityDefinition override manifest  `c9bee570`
+- · Documentation release  `052a592b`
 
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 ## MCP Orientation (when available)