{"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-49av9cpk","versions":[{"created_at":"2026-06-04T05:50:49Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.4→99.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"855fbaeebf73199e26985162b492f8e066c6d6f93ad690fbe68590537f93e32b","version":10},{"created_at":"2026-06-04T04:57:58Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.6→99.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"6f425326119e890908072f374baa7e8429b5339a0e8ad38d47c27f5f9409103e","version":9},{"created_at":"2026-06-04T04:57:58Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"24e368d0892c5690e658e093ee55ee4e5a1b43945d16cd73b3a48ab49d998355","version":8}]}