{"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-g2-27wzx32b","versions":[{"created_at":"2026-06-04T05:51:23Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.5→98.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.5 (美 99 環 99 楽 100))","saved_by":"editor","sha256":"c37358bce8dba39420e1e9e1aeddcc48679b7bd43a40b4351559ee6cdfe3ae53","version":4},{"created_at":"2026-06-04T04:53:14Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 71.3→98.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.5 (美 99 環 99 楽 100))","saved_by":"editor","sha256":"5b04541531faa3b8edf7cac8d21aad119877bd68e95c64a030b115638f81efcc","version":3},{"created_at":"2026-06-04T04:53:14Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f56d61f782084ec1da15209f0479bb2d6691a15136b8d1f0899baafb7151c96c","version":2}]}