{"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-0nvjafic","versions":[{"created_at":"2026-06-04T05:53:05Z","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":"2026-06-04T04:58:52Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 38.9→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":"314d6b851019c6d0cefb0d8b501628f3a548cc180dac908675da6146279d3ed2","version":9},{"created_at":"2026-06-04T04:58:52Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"36381b7d3642bddcb2b5184c67a26d2dc3b3dd826cc5f1c8762b292de2fb11a5","version":8}]}