{"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-2-ekuy4w6h","versions":[{"created_at":"2026-06-04T05:53:15Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cf6e0826d2c1b4772abef942c6d4fcdc7307cd96d99145b0f15a86a9fbae00c3","version":10},{"created_at":"2026-06-04T04:58:44Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 40.2→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"fca364021b55ac7cb604a658497aeee9071ea510483da60b2ccf7d271ee082f9","version":9},{"created_at":"2026-06-04T04:58:44Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f0557da0dd97800c90c037388a26324dfa309eefbb644c24e4d0a2c93f0652d4","version":8}]}