{"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-04h4y404","versions":[{"created_at":"2026-06-04T17:01:40Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.4->99.2)","saved_by":"editor","sha256":"5f6535e1bf15044dc3a3b80f100a2335228722ca77dc595be8fe185cfb094231","version":12},{"created_at":"2026-06-04T14:56:50Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (91.3->91.4)","saved_by":"editor","sha256":"b3585cf932df05a4e03fe87910f594150a4a50553537786506ddc7d360cfaa57","version":11},{"created_at":"2026-06-04T05:55:38Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 92.6→91.3 (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 91.3 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"78a96d8da28487f8268b1da0561a68092559b91ea1c1fba1b2a9f1e7e3dffa29","version":10},{"created_at":"2026-06-04T04:54:04Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 67.6→92.6 (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 92.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"d41532873f3b63db145b3a38b94cbd7d3c5ab53b7b91b8edf9b464bc64751155","version":9},{"created_at":"2026-06-04T04:54:04Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"da097484cbad91b6942414259f7a0c7d5a9269bbd70c27e566d624f15cebed85","version":8}]}