{"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-4u8s70ce","versions":[{"created_at":"2026-06-04T17:00:40Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (91.0->99.5)","saved_by":"editor","sha256":"d242d6e4ce4477908f835fb3e8851f1b60a96c1ab563ecc0895a178d77bc0481","version":12},{"created_at":"2026-06-04T14:56:51Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (90.9->91.0)","saved_by":"editor","sha256":"e091129c93db7c08253c182909e26335de2135a91099818a30a3d360c19a993d","version":11},{"created_at":"2026-06-04T05:55:22Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.3→90.9 (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 90.9 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"a5365f3dc4321658772d4175e4a0772980a9bb98678a8b1e53cec1449e85717d","version":10},{"created_at":"2026-06-04T04:52:51Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 73.9→93.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f56312d12253c5360e51ffdaf10be5f47eaf50b90a3bb0fb91b2dea1effd65eb","version":9},{"created_at":"2026-06-04T04:52:51Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f53b647392ff0ac29d0e9bb19c3bcf0fa8aa1cadc06739640820aa1dee4a9741","version":8}]}