{"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-mdxyqwn7","versions":[{"created_at":"2026-06-04T05:53:26Z","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":"19dd4245b49365f85def3276a1e69426615ca7990297b27441efc8a80af7819e","version":10},{"created_at":"2026-06-04T04:58:28Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 43.6→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":"e4bded6d7e347aa5e677ee882793b44d046fee6ef1f9c99a86ec8b7ae0dc1514","version":9},{"created_at":"2026-06-04T04:58:28Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"26c4a9f51ffa8bcfb86c494098ae7c597e86ddefdf5f0bea33a23f2b4e04c042","version":8}]}