{"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-y9exglke","versions":[{"created_at":"2026-06-10T22:52:52Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy50477522→quote21425095 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"65741b885f43f8051dd7d20f21d43864a494e59605c364b5641cf5219ede010b","version":10},{"created_at":"2026-06-10T16:39:25Z","element_count":89,"note":"5軸GA polish 60->95 by M5 (autonomous)","saved_by":"mcp","sha256":"e95e69601d29337f095b9a090d2a7bcecb0c1c15fd562b63ca6576847926a4cb","version":2}]}