{"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-h6xg7bk9","versions":[{"created_at":"2026-06-04T17:01:05Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.1)","saved_by":"editor","sha256":"46aa75a7e375b3ce94f9c95989dcd5844d24d202ffa11231e73cc621f17d352c","version":11},{"created_at":"2026-06-04T05:52:49Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"faecb7707fbfa274a16c696adae99bd5f799eab7c092786772194f52d942a608","version":10},{"created_at":"2026-06-04T04:57:19Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 47.5→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":"0dc408825384f3d208416aae486528efeef04d7cc3334a414c6f57a55b25e0b8","version":9},{"created_at":"2026-06-04T04:57:19Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"081d5899d4aa454ad8301206dab43fb3d4749a2defffa2ffd89bd7ccdeb45ba0","version":8}]}