{"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-bt0ha5dv","versions":[{"created_at":"2026-06-04T16:59:35Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.0->100.0)","saved_by":"editor","sha256":"9db28136e3fe8cef65800e89213d5f350325eff14c8383d56a6ea5817304284b","version":11},{"created_at":"2026-06-04T05:55:28Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.1→92.0 (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 92.0 (美 96 環 100 楽 91))","saved_by":"editor","sha256":"90b73b80b67740b02a63e345e0b34a5498687de33ac4681dd7ee84608c0db30b","version":10},{"created_at":"2026-06-04T04:58:26Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 43.9→93.1 (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 93.1 (美 94 環 100 楽 100))","saved_by":"editor","sha256":"6729330205c04ed73e10423e7c2dea1df80a76770d004c63056fb451a69a4b58","version":9},{"created_at":"2026-06-04T04:58:26Z","element_count":17,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"354c4a30f997a64c707297d872c91d36d09d2b1c1e3228c7aed59dede519a633","version":8}]}