{"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-qzh6qat2","versions":[{"created_at":"2026-06-04T06:04:38Z","element_count":99,"note":"GA diverse final 2026-06-04: 総合 86.7→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"e1b84c90cce6b7acbd2d08d1fa7300b0bc7898f03376a94cb240cf62cc92738d","version":11},{"created_at":"2026-06-04T05:51:28Z","element_count":53,"note":"GA diverse re-design 2026-06-04: 総合 98.3→86.7 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 86.7 (美 92 環 95 楽 91))","saved_by":"editor","sha256":"3297af99301399166faa1358b031b3ecd8c822e294c38173b44ea3269de4443e","version":10},{"created_at":"2026-06-04T04:58:10Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.2→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"0d0501b5090becc13c413327fdace7f05b73c3f6eb87169fcd23d8d2feb33ef4","version":9},{"created_at":"2026-06-04T04:58:10Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"153b837bb83b3d2a83a35c9aa5bd78753611f4b5b8a641398c5f8b4a1dee3a57","version":8}]}