{"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-wa79wbjg","versions":[{"created_at":"2026-06-04T05:52:17Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 95.8→98.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.7 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"0c6a4770484588f9fa3fda4868c990e2580ee5a4f72f2c30aa49e12f3dc070a0","version":10},{"created_at":"2026-06-04T04:54:25Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 66.3→95.8 (総2階(箱)・吹抜 ピアノ室 PV 雨水 南面サンルーム / 適応度 95.8 (美 95 環 99 楽 91))","saved_by":"editor","sha256":"d957c0993a45efe5fd1d199676f65c3bb67c47391667564dfa473393a1e184e0","version":9},{"created_at":"2026-06-04T04:54:25Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"02997b81b98e8b8b7549cac1bef38c537fc883bdcfc9820994a32d90b8d3a871","version":8}]}