{"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-dqv62adp","versions":[{"created_at":"2026-06-10T22:52:29Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy85444799→quote20631425 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"78d0497b9cad33c31af2f4c90bbc050aa8e61bbc113abe57554678affc4c4c1a","version":21},{"created_at":"2026-06-10T13:34:14Z","element_count":85,"note":"backfill: 延床=居室床スラブ実面積81.7㎡(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":"69c855550dc4f95c45cb4db404c8fc5e9985359113267fd75e07329629c229e4","version":8},{"created_at":"2026-06-10T12:31:47Z","element_count":74,"note":"5軸GA polish 59->97 by M5 (autonomous)","saved_by":"mcp","sha256":"fb8b96c2f69d1f1b23a36d7cafa2e78a8b06bf1d6ed68e75c22689f7b1a2defd","version":4}]}