{"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-6mzfqb8h","versions":[{"created_at":"2026-06-04T16:59:36Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.6->99.8)","saved_by":"editor","sha256":"53a8fd13700245ed94d339fec7ca70b259aa5cb60394184d553cd6683fdd0a1a","version":12},{"created_at":"2026-06-04T14:57:07Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (91.5->91.6)","saved_by":"editor","sha256":"c9c74f242dbdd6d6652deb4d98c7590a0664ae750084fea371fc045f8527913f","version":11},{"created_at":"2026-06-04T05:55:04Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.6→91.5 (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 91.5 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"1c22e17fa1209decfc88ef484301786c27fe94e888485ae509939d89e72c4247","version":10},{"created_at":"2026-06-04T04:53:41Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 69.1→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"0a353d2d9bd700adb6c9dafb99a45e657c1eb8c0dc91c93b5b5398df7ac10396","version":9},{"created_at":"2026-06-04T04:53:41Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e84f1a7f0f4e04da9ef24568580ce4dd0cbbd97d1097efce6271f25ce56e3d2e","version":8}]}