Implement worker coordination runtime and finish WP-0003

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a07b5b-ea58-7ad2-bdbb-0b1c995cfc35

.custodian-brief.md

@@ -2,17 +2,17 @@
 # Custodian Brief — coordination-engine
 
 **Domain:** communication  
-**Last synced:** 2026-09-07 13:01 UTC  
+**Last synced:** 2026-09-07 14:42 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### Worker coordination service contract
-Progress: 2/4 done  |  workplan_id: `78a91239-ae31-5e03-98c9-54f3cbe90cb5`
+### OrwellLoggingDiagnostics canon review
+Progress: 0/2 done  |  workplan_id: `bf08c283-0f43-5a8d-9e63-17c4b96ded11`
 
 **Open tasks:**
-- ! Agree adapter and deployment decisions  `1a428ed2`
-- ! Establish OrwellLoggingDiagnostics practice pattern  `4ba98e37`
+- ! Record registration or final disposition  `0260b21a`
+- · Obtain canonical owner disposition  `c1342268`
 
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 ## MCP Orientation (when available)