{"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-ryuhyo-1j6ml2vs","versions":[{"created_at":"2026-06-04T17:01:12Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.1->98.5)","saved_by":"editor","sha256":"6c34fb95eec25b8280a82b2c314ff625b552c011261f329a0d99500f6a5c070e","version":11},{"created_at":"2026-06-04T05:52:07Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 97.0→90.1 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 90.1 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"a4e8dddd9e072500e455ef83bedc7e8145a56ebb9941b8a8f80c02bc4edee53c","version":10},{"created_at":"2026-06-04T04:52:52Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 73.7→97.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.0 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"b641440c9c713c343c27442f6e223317ece0b251cd98ee01866c5e1769630937","version":9},{"created_at":"2026-06-04T04:52:52Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e727dea880776e6d75f4878b7978678723c1cfeb4bc12d704d2137a59b5fdf04","version":8}]}