{"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-278qf0iz","versions":[{"created_at":"2026-06-04T16:59:44Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.6->97.9)","saved_by":"editor","sha256":"13c7a58e5a16124b9e20d6836c93b9cf1a982d1e8a55c7f3032aa0b8fba7e14e","version":11},{"created_at":"2026-06-04T05:55:05Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→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":"9059fb807711cf053eb9015ee7edd3b92a52c618d10aab93514528076afbb23f","version":10},{"created_at":"2026-06-04T04:58:29Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 43.5→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":"14378de7be62932cfe3d08b74196980cbe3263ef4b8a5af05e37aa7437b8da74","version":9},{"created_at":"2026-06-04T04:58:29Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"51162086d4d390210aae1cd4f0786cc4629c68d23653acdffdba4192998451ec","version":8}]}