{"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-kjwmlcho","versions":[{"created_at":"2026-06-04T05:51:56Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.4→97.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"2f3b6014b3fad619c24d7d574fbb7487149feaadbf304cd3c2add0c01d4ccea0","version":10},{"created_at":"2026-06-04T04:54:51Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.0→97.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"fda832cc8f382fb7776a5b397303f5377aff09aee15f0d65c31e1def60258af4","version":9},{"created_at":"2026-06-04T04:54:51Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ae085c89484fa38788056a4c596202566e64a4054b828867def8c5aac0066e29","version":8}]}