{"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-1y148out","versions":[{"created_at":"2026-06-04T17:00:56Z","element_count":76,"note":"polish: batch-improve-100 2026-06-04 (90.2->94.3)","saved_by":"editor","sha256":"fae2645894f23cbc566a43090bc878a3d6fcf291890b0401b0487840428dfe09","version":11},{"created_at":"2026-06-04T05:56:17Z","element_count":69,"note":"GA diverse re-design 2026-06-04: 総合 90.2→90.2 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 90.2 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"7cb223eb191d0dcc1ca5cfbbc44d1738dbfa1598129545e98be88ca8776399ff","version":10},{"created_at":"2026-06-04T04:59:43Z","element_count":69,"note":"GA batch-improve 2026-06-04: 総合 14.5→90.2 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 90.2 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"86f265db6db1d9a30b008602d7f853593c8a5c63053244e170f78df2d86b2790","version":9},{"created_at":"2026-06-04T04:59:42Z","element_count":41,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4d38eb9638c533edeee1fbbef1497bde38b5a13cec8df40f72d1fde30d49c0c8","version":8}]}