{"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-2yv74yd8","versions":[{"created_at":"2026-06-04T14:56:48Z","element_count":73,"note":"polish: batch-improve-100 2026-06-04 (95.2->95.2)","saved_by":"editor","sha256":"2e5870c0d44cbf048389edae7406e1bc26dbc88892e2b9af4a1155384d10c857","version":11},{"created_at":"2026-06-04T05:51:52Z","element_count":71,"note":"GA diverse re-design 2026-06-04: 総合 97.5→95.2 (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 95.2 (美 95 環 97 楽 91))","saved_by":"editor","sha256":"a73b623ad6545787913138d345c93e8449e4b0c5168577af9117c3ea9ef15d05","version":10},{"created_at":"2026-06-04T04:58:15Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 44.9→97.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.5 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"d3a3f1d7ab8b3c053799dc8cd9c7298a1f2a77763060fa89c925ed9c0d9950ad","version":9},{"created_at":"2026-06-04T04:58:15Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"00e92819fa035079bc6265b709d52e385c8915ed6083fb95766104fc21d03fd6","version":8}]}