{"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-52nf2nye","versions":[{"created_at":"2026-06-04T05:51:24Z","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":10},{"created_at":"2026-06-04T04:58:09Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.3→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":"4281f9e75f7e5d3676359a3a4e2e0c444d87c8997c06b85a93a4c7c92ea81922","version":9},{"created_at":"2026-06-04T04:58:09Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0b84c81381ac2f4d90039859a62ad3008f8c867bc591ba306e4dc9d80e0285d4","version":8}]}