{"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-aetmqujx","versions":[{"created_at":"2026-06-10T22:52:37Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy61441200→quote22495754 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"00989b36f53ecc2805b86557ff3207e19e7e5d49a7aab87553bbe1f4120ad3ea","version":17},{"created_at":"2026-06-10T14:12:52Z","element_count":83,"note":"5軸GA polish 61->97 by M5 (autonomous)","saved_by":"mcp","sha256":"2b32ed172dbffdb890a3eb8dcba26939c82cd0988876afac1911b3d1a1c349ca","version":6}]}