{"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-budrgv6o","versions":[{"created_at":"2026-06-04T05:55:32Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.0→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":"ea14c34378824f3a65d291f65ced1c5f6db26d9cec083501c49c3849b465ed92","version":10},{"created_at":"2026-06-04T04:53:37Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 69.8→93.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.0 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"eaffeccfaa8cd5731c8a702dbcfa70925a6e32bb149d950b7c960838c1f93dfb","version":9},{"created_at":"2026-06-04T04:53:37Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1e671c47bd7540553ac7cba599b12347f20435930bd851f374c5a75db63a2e36","version":8}]}