{"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-32hqdk46","versions":[{"created_at":"2026-06-04T07:22:23Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.1→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f3999c0d00d289a59854740ec44de8a0ae4412528a883eae949ab2e1433151d0","version":11},{"created_at":"2026-06-04T05:52:58Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 94.6→93.1 (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 93.1 (美 93 環 98 楽 100))","saved_by":"editor","sha256":"e72d9c7f771a0cb5265b7b5e33a6e91a5a6af38d14d309d057aa6bf822a190d4","version":10},{"created_at":"2026-06-04T04:56:44Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 51.2→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"006e49479c3cc5126acd7d39ac78fa9acb3b8599c7b0592149004f8910b8979c","version":9},{"created_at":"2026-06-04T04:56:44Z","element_count":16,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"9b8e6d346f1cd2b44178ad47172d49b84febf16c7b7fc59ed0cfb711bf755300","version":8}]}