docs(governance): track context docs and add relay rollout controls

memory-bank/change-log.md

@@ -1189,3 +1189,36 @@ Validation:
 Follow-ups:
 
 - Batch 2B: update memory/context docs with canonical relay hardening policy, env knobs, and rollback/tuning guidance.
+
+---
+
+### CL-032: TASK22239 governance + operational rollout playbook bundle (relay hardening)
+
+date: 2026-03-24
+author: Cline
+scope: `context/runbook.md`, `context/integration-map.md`, `memory-bank/{change-log,decisions,patterns}.md`
+type: change
+rationale: Deliver a combined governance and operational rollout slice after P2-S3 code hardening so relay policy changes have explicit merge gates, smoke matrix coverage, and rollback/monitoring discipline.
+impact: Improves release safety and auditability for relay policy updates without changing runtime endpoint behavior.
+status: completed
+
+Summary:
+
+- Added a dedicated **Relay Hardening Rollout Playbook** section to `context/runbook.md` covering:
+    - pre-merge governance gate checklist
+    - non-prod smoke matrix for deterministic and transient failure classes
+    - progressive rollout guidance
+    - Day 1/Day 3 monitoring checks
+    - fast mitigation/rollback sequence
+- Added relay policy governance references in architecture/integration context docs to make rollout checks discoverable for future contributors.
+- Recorded governance baseline updates in memory-bank:
+    - decision entry for relay policy-change governance gate
+    - reusable pattern entry for required rollout/smoke/rollback workflow
+
+Validation:
+
+- Documentation consistency review across `context/runbook.md`, `context/integration-map.md`, and memory-bank entries.
+
+Follow-ups:
+
+- Optional next iteration: add a PR template block in Azure DevOps mirroring the runbook governance gate checklist.