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CD Pipeline / build-and-deploy (push) Failing after 1m45s
根本原因: frequency_stats 從未持久化到 DB,get_by_id() 回傳永遠是 None 修復: 用 AnomalyCounter.derive_key_from_incident() 推導 anomaly_key, 直接從 Redis 查即時頻率與處置分佈統計 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>