{"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-iqkkkwm1","versions":[{"created_at":"2026-06-04T17:00:46Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"28d17ab49f1baab43e2bf69e8b4eb14fc6e555080ff042a4a598edad692c9305","version":11},{"created_at":"2026-06-04T05:53:12Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.6→92.4 (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 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"a4fc77966983b48359663cf4f227eb051747b9f031195a8695d7680ca6fde891","version":10},{"created_at":"2026-06-04T04:58:50Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 39.0→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":"903351a484116a66fa81394dc735deb10e9b1345a85383606e9147f2d569bab3","version":9},{"created_at":"2026-06-04T04:58:50Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a977ea3dcfa36fa66a13284342857cd8001ec681140d8c383a81cf1a894161f7","version":8}]}