{"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-rdobnhph","versions":[{"created_at":"2026-06-10T22:52:26Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy72844800→quote22697879 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"5e74ace115337a7efc27293336e2d9f194373b17ff5b330c75354714e60ba4cb","version":22},{"created_at":"2026-06-10T13:31:14Z","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":8},{"created_at":"2026-06-10T11:59:58Z","element_count":72,"note":"5軸GA polish 61->95 by M5 (autonomous)","saved_by":"mcp","sha256":"8e028195aa6ed47cc0596297020f4bcc9d7c1b9d6fd7aa30b34d6483757c9e39","version":3}]}