{"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-pl2uz5j0","versions":[{"created_at":"2026-06-04T17:00:43Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"064e630ad8a542944eb857ff2e1c0e3a75c493d1fc145deef0b89def972bcb61","version":11},{"created_at":"2026-06-04T05:54:51Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→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":"0263d8d0e43bc1d69988ea0f1828a79f412fddcf1a6efd4bce02dbbfb0d22d57","version":10},{"created_at":"2026-06-04T04:56:34Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 52.9→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"adf0ff34903758557781983d448fc142d313f057f106dd010139269f646233a2","version":9},{"created_at":"2026-06-04T04:56:34Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7d0619bf2ce086991b3d2ad83063af7a4645bf23c6ca2e16ceb4820fa212d1f3","version":8}]}