{"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-dlvja4cm","versions":[{"created_at":"2026-06-04T16:59:58Z","element_count":78,"note":"polish: batch-improve-100 2026-06-04 (95.8->98.7)","saved_by":"editor","sha256":"9491c4750ce319101de9c7c2f1970ce1d6e598eebacc49a9f9b49c8d805a4381","version":11},{"created_at":"2026-06-04T05:52:18Z","element_count":73,"note":"GA diverse re-design 2026-06-04: 総合 95.7→95.8 (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 95.8 (美 95 環 98 楽 91))","saved_by":"editor","sha256":"8e455676ce007499eaa184676c4c6975561a5a6316d4bee9ec0a2194ab328147","version":10},{"created_at":"2026-06-04T04:53:20Z","element_count":71,"note":"GA batch-improve 2026-06-04: 総合 70.6→95.7 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 95.7 (美 95 環 98 楽 91))","saved_by":"editor","sha256":"5b2a12ec87b5098d9859c8b28524800874f0fe87b1908cc878c2d13b14f35f4a","version":9},{"created_at":"2026-06-04T04:53:20Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d8847e3c757b2ff8820df8567e675c11f227e601b6b7ebdc8602cc3d338b783c","version":8}]}