{"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-c7qak5ya","versions":[{"created_at":"2026-06-04T17:01:10Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.4->100.0)","saved_by":"editor","sha256":"1717a59a8c57607fa3a146abf00dc4877c670609451719b0f5a9829f0a93a949","version":11},{"created_at":"2026-06-04T05:53:57Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.7→91.4 (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 91.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"a98745c77be12eccf574a50d33757461762bb0f7b9078c8bf01d07ff4efd4951","version":10},{"created_at":"2026-06-04T04:55:03Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 63.5→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b13aa7df786453203695ac090bfcb4bed20d9efdd28e8057e8cd2d95ff35c09d","version":9},{"created_at":"2026-06-04T04:55:03Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e7e85fe1ce1f2ec5d31ddafd0c99f8fc3a4cf77cf3c7e992584ec4084fb80f2f","version":8}]}