{"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-ra-sen224mbim-4mqtfqwg","versions":[{"created_at":"2026-06-04T07:22:25Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.0→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":"de4c44a22a44f0147b38f453c629c1391f52de06a840a46e6d2af80210cb2d4b","version":5},{"created_at":"2026-06-04T05:52:24Z","element_count":71,"note":"GA diverse re-design 2026-06-04: 総合 94.6→93.0 (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 93.0 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"9a3fe92b3e179f26bc3b7baea42cb3f02e2d76c228f89fba782d3390f5b4cb81","version":4},{"created_at":"2026-06-04T04:56:28Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 54.6→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":"ce1870ae58b0ab8dd83ef2f322e6ff177d2631227a8563bbdaf6ba1c7ae31280","version":3},{"created_at":"2026-06-04T04:56:27Z","element_count":1494,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0c2d3977a3ce1abbafcf42e251f5b5193606eebe684eca848782e8579eca16f1","version":2}]}