{"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-iy2ucrhm","versions":[{"created_at":"2026-06-10T23:11:46Z","element_count":77,"note":"legacy fix(retry): jpy75041820→quote22697879 (旧世代データ是正・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"14d5ae14b4f1d89b7cf0d47de2fd74beb296c015b8591378fb48c6260f38ba24","version":27},{"created_at":"2026-06-10T22:52:01Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / 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":"f6304e1944c856ba4b5c4e327a0aa9b50bf7066eb6940b72f4ee32e1013b13fc","version":26},{"created_at":"2026-06-10T13:10:02Z","element_count":77,"note":"backfill: 延床=居室床スラブ実面積97.8㎡(基礎/屋外/ロフト除外)。設備数量/コスト過大の是正","saved_by":"mcp","sha256":"1021aed4b61463fa707c8b45b93ce8cc913d2a35615ea53c82e64faab43717a8","version":11},{"created_at":"2026-06-10T07:59:39Z","element_count":91,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"894782f769e7844f9b5608b9018358fa55fd4c15d668a25ba0ef6cf440085392","version":2}]}