{"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-e36vdezk","versions":[{"created_at":"2026-06-10T23:23:55Z","element_count":84,"note":"5軸GA polish 54->97 by M5 (autonomous)","saved_by":"mcp","sha256":"9436a34d5eff86906e1e8e2ab2b8ced9fd1bba2397d9e970e5d7f01a8b539966","version":10},{"created_at":"2026-06-10T23:07:57Z","element_count":54,"note":"legacy fix: rooms設備語除去 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"2d0af74d10c6e1c3684cc20c4c6c19bbd08b6dc4a76926dcd0ecfc47a19f6c5a","version":7}]}