{"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-lb7qp5yx","versions":[{"created_at":"2026-06-04T16:59:59Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.1)","saved_by":"editor","sha256":"858e991bb936dcbf0193d56400d765ea6871c8f991a57ab5a1e87ce2fbc03b07","version":11},{"created_at":"2026-06-04T05:52:40Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"43e760f3cabf230f221312d13fc7670b5b3c07a5bbd13c6c0290ce561eeb8cc8","version":10},{"created_at":"2026-06-04T04:57:19Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 47.5→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"05c5993e2f4054dd85624fb53301761f20daede673550d6c0dd86174d08b924d","version":9},{"created_at":"2026-06-04T04:57:19Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"557489252e00a6f30ac528e74c3eadad42e15e72db185b2843e3bd7b74dba51d","version":8}]}