{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-gentianhouse-awbnwphs","versions":[{"created_at":"2026-06-10T22:53:31Z","element_count":85,"note":"legacy fix: jpy90050184→quote24212747 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"c39ba2bc94089b497c5190d1619f2c660a37d1f6bb707314f87cef591d43d691","version":10},{"created_at":"2026-06-10T16:55:14Z","element_count":91,"note":"5軸GA polish 43->98 by M5 (autonomous)","saved_by":"mcp","sha256":"ec328d5f74d2cf71468a4d04315ee170785b19fe8e28e4ecf9e62356549065b2","version":2}]}