{"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-hxj8t890","versions":[{"created_at":"2026-06-04T17:00:32Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.6->99.8)","saved_by":"editor","sha256":"29d6f503d5b3041bd232dc2430d23bf98caa20c942609b11dab91cb92006c500","version":11},{"created_at":"2026-06-04T05:55:02Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.6→91.6 (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 91.6 (美 96 環 100 楽 91))","saved_by":"editor","sha256":"20b5f379a163868b23b811694b22835dee870548489179fed0ee80495e6fa795","version":10},{"created_at":"2026-06-04T04:54:58Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 64.1→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":"ef2e31c47b97b6f42e81d69e50dbac44dca43b22c6b9f861c0d022acf464e3a0","version":9},{"created_at":"2026-06-04T04:54:58Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"cad8291fb8d8c64d057434e0b24ce5980aefe1f380afd8454a4d1a9ee5f28e9e","version":8}]}