{"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-ut7u6b6q","versions":[{"created_at":"2026-06-04T17:01:30Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.0->100.0)","saved_by":"editor","sha256":"435d914ea1d8101cd29f607aab32272446dc59c6a3a22b70899bab466e8d40b3","version":11},{"created_at":"2026-06-04T05:55:27Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.2→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 95 環 100 楽 91))","saved_by":"editor","sha256":"01cbfe23a2291c48b592127d06a17628282bcaa140952b8d1c250d56a159f4c8","version":10},{"created_at":"2026-06-04T04:53:23Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 70.4→93.2 (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 93.2 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"14b297a62d61edf23f374c3651142128ca71a5747b7f8f7e5125e4f52267d343","version":9},{"created_at":"2026-06-04T04:53:22Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c6cd25189886e0b1d51e0f74baa0c0c33edec6ffb36ff9cbcf73f4478273b78c","version":8}]}