{"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-fdwjxo4b","versions":[{"created_at":"2026-06-04T05:53:35Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.5→94.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"23a4d230981190ad9d4ec33018ebeb06409fc8f87282f5ef0e9fde10005aa07b","version":10},{"created_at":"2026-06-04T04:54:45Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 65.5→94.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"70e39510c51d43a34ecff59d723da4ef1d68ba7a5e99b27407864092203c1c95","version":9},{"created_at":"2026-06-04T04:54:45Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1a3ebc70e6fad72181cab3a8ad8e41219182b45a5a1678255dd9c46ff745ad76","version":8}]}