{"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-g6fm1vv6","versions":[{"created_at":"2026-06-04T05:52:12Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 96.7→98.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"754ae21be105bd868d47c96215a7689c38c7391eceada39b41260a53b51706ed","version":10},{"created_at":"2026-06-04T04:58:10Z","element_count":102,"note":"GA batch-improve 2026-06-04: 総合 45.2→96.7 (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 96.7 (美 94 環 100 楽 100))","saved_by":"editor","sha256":"d2b7dff1cbd9bc51251739d363583c1ad1fd4058b19d56db4d71667a897b7933","version":9},{"created_at":"2026-06-04T04:58:10Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1786a2524eed4f61cb596233efef83ce1b512edd33e8213ad3ce2c42b24388bf","version":8}]}