docs(governance): record t153 km degradation rollout [skip ci]

docs/LOGBOOK.md

@@ -24,6 +24,40 @@ DATABASE_URL='postgresql+asyncpg://test:test@localhost/test' REDIS_URL='redis://
 DATABASE_URL='postgresql+asyncpg://test:test@localhost/test' REDIS_URL='redis://localhost:6379/0' /Users/ogt/.pyenv/versions/3.11.7/bin/python -m ruff check apps/api/src/services/governance_agent.py apps/api/tests/test_governance_agent.py -> OK
 ```
 
+**production deploy / smoke**：
+
+```text
+code commit:
+de685142 fix(governance): dedupe km degradation owner review
+
+deploy marker:
+c9b2e763 chore(cd): deploy de68514 [skip ci]
+
+Gitea Actions:
+2047 Code Review -> success
+2046 CD -> success
+  tests 3852 -> success
+  build-and-deploy 3853 -> success
+  post-deploy-checks 3854 -> success
+
+K8s image:
+awoooi-api    192.168.0.110:5000/awoooi/api:de685142833d5c8db861dd5fd7c35f3e1ae22d9f
+awoooi-web    192.168.0.110:5000/awoooi/web:de685142833d5c8db861dd5fd7c35f3e1ae22d9f
+awoooi-worker 192.168.0.110:5000/awoooi/api:de685142833d5c8db861dd5fd7c35f3e1ae22d9f
+
+ArgoCD / rollout:
+ArgoCD sync=Synced health=Healthy revision=c9b2e763 expected=c9b2e763
+deployment "awoooi-api" successfully rolled out
+deployment "awoooi-web" successfully rolled out
+deployment "awoooi-worker" successfully rolled out
+
+post-deploy:
+Alert Chain Smoke -> 8/8 checks passed in 5.1s
+Monitoring coverage -> 100.0%, 真實問題 0
+GET /api/v1/health -> degraded only because ollama_gcp_a timeout; ollama_gcp_b up and route order remains GCP-A -> GCP-B -> local
+GET /api/v1/ai/governance/events?event_type=knowledge_degradation&from=2026-05-24T08:25:00Z -> total=0
+```
+
 **處置判讀**：
 
 - 這類告警不是服務故障，不應重啟 API / Redis / K8s workload。