{"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-jkdbnujd","versions":[{"created_at":"2026-06-04T05:53:43Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.1→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"ba66cb86ef194b1b313667697b173c8f458ae42b583ece1021e6e6e58afaa13e","version":10},{"created_at":"2026-06-04T04:55:41Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 59.8→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"53e5d2e7584f1afdb7dcd3501f6739d8f6631ebe097681676240f150496066e2","version":9},{"created_at":"2026-06-04T04:55:41Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"bb0f82cb5a1def6faf1a47c4a3ea16ec7d11552ec0e34bbc346bf53aa60151c4","version":8}]}