{"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-e4jhol8k","versions":[{"created_at":"2026-06-04T05:50:29Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"88559770f170534931d385cdb2cd4a923fc5d47013a462b4d11215148dd663c7","version":10},{"created_at":"2026-06-04T04:57:57Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 45.6→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"50e15e6e0ee1256effc2809893d22c842c1326e3540d04b7d10821352c3839fe","version":9},{"created_at":"2026-06-04T04:57:57Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"00936a71c1f32be4e9dcb59bac202fddd5a87fde663ed422c1681b5670cea115","version":8}]}