{"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-c7qaxnqa","versions":[{"created_at":"2026-06-04T07:22:05Z","element_count":98,"note":"GA polish 2026-06-04: 総合 97.6→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"60cc4dea141c9820ea66fffabbdc8bd382d2be7fd120269bf221e8465e276854","version":11},{"created_at":"2026-06-04T05:49:36Z","element_count":101,"note":"GA diverse re-design 2026-06-04: 総合 100.0→97.6 (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 97.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"833b0061efb74bed2924f5175f30c7c0f9a4df12c8ee8339b15971c4f3a505c5","version":10},{"created_at":"2026-06-04T04:55:18Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 62.3→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"84d9ff0fe61342c5e42413ac5f89af1a39385f773a3eff458fb1bc370d35bc79","version":9},{"created_at":"2026-06-04T04:55:18Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8ad70f7c4c084f139c2582bf35305df6f9b87db41deff2564ca04bdbf52f038b","version":8}]}