{"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-ji7mfgku","versions":[{"created_at":"2026-06-04T05:51:55Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.4→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":"ac0d9f8813db9d8ee9a4389b948ef1228bbd4d03912c797394d18606d575e6e4","version":10},{"created_at":"2026-06-04T04:58:20Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 44.7→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":"0b391b540ce4543e03188c0f26051c24a55c5cf4b61494210598000a8d1019c2","version":9},{"created_at":"2026-06-04T04:58:20Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"da362eea42bc19b23f52151c177d7225b5cf077a3836b38dabdebbea16ff4402","version":8}]}