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Phase 1 — affected_services 污染根治
- webhooks.py: _extract_affected_services() 從 labels 精準萃取服務名
(component > job > pod deployment name > clean target_resource > [])
- create_incident_for_approval: alert_labels 完整保留進 Signal
- alert_name 從 alertname 取，不再用 "custom"
Phase 2 — Playbook alertname 變體擴充
- alert_rules.yaml: 5 條規則新增 HostHighCpuLoad、KubePodCrashLooping 等變體
- scripts/update_playbook_alert_variants.py: Redis index 已執行更新 ✅
Phase 3 — Jaccard 通用型 Playbook 豁免
- similarity.py: affected_services=[] → 1.0 豁免（基礎設施 Playbook 不針對特定服務）
- severity_range=[] → 1.0 豁免（適用所有嚴重度）
Phase 4 — Playbook Embedding 持久化（冷啟動修復）
- migrations/flywheel_playbook_embeddings.sql: pgvector 持久化表
- services/playbook_embedding_service.py: 啟動時重建 Redis 向量快取 + 同步 DB
- main.py: lifespan 啟動時 asyncio.create_task 非阻塞執行
2026-04-10 Asia/Taipei — Claude Sonnet 4.6
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>