{"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-house-jgo9o42e","versions":[{"created_at":"2026-06-10T23:39:54Z","element_count":83,"note":"5軸GA polish 54->98 by M5 (autonomous)","saved_by":"mcp","sha256":"b671ae303fa7d566122278e5732c7a3b19869841e34c2dd0e3248409e0752674","version":11},{"created_at":"2026-06-10T23:08:58Z","element_count":50,"note":"legacy fix: rooms設備語除去 / jpy66770000→quote16879158 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"75fc83f448b7abe360592cd4e94d142b4cccd5d8046f75a738cf2b1465dd39f2","version":7}]}