{"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-mph0hr7m","versions":[{"created_at":"2026-06-04T05:52:05Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.0→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":"add4fc7a91584170e6b3690c3ccc684a40d47b414cdd412f148846633e7f17b3","version":10},{"created_at":"2026-06-04T04:58:22Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 44.4→97.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.0 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"ad9dede198e2a4e6d1bdd5e7448ad2e23e9cfbe269be3b338381c5c9a4dad669","version":9},{"created_at":"2026-06-04T04:58:22Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5c2e82f3165053638851a737f87e9899f2fcbba515828d9e69eb1c97d2bbd2a3","version":8}]}