{"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-nhhmfh5g","versions":[{"created_at":"2026-06-04T16:59:59Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (95.2->98.7)","saved_by":"editor","sha256":"963838168dbaf3468f057d1709a83df50eb6dc0af1e2e75771ab10c7643b698b","version":11},{"created_at":"2026-06-04T05:51:54Z","element_count":73,"note":"GA diverse re-design 2026-06-04: 総合 97.4→95.2 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 南面サンルーム / 適応度 95.2 (美 96 環 99 楽 91))","saved_by":"editor","sha256":"45d7e7e8df2c30c531f68ec96c57b372ca106e0c353a1c617843be80a719ff40","version":10},{"created_at":"2026-06-04T04:53:25Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 70.3→97.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4adee1f4b189b300415dfb1b9f4c319d194dfeadb469dea1dc4f14ade7a596da","version":9},{"created_at":"2026-06-04T04:53:25Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e15e89b134ef9568ef0f4744f08cfbc0bc20508015420902cdd23b99fd3140ea","version":8}]}