{"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-wz1qcfi0","versions":[{"created_at":"2026-06-04T05:50:17Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"bc4019ba97080ccc0f0d78a954cce7a97364f2b3ed2a5e990b48175129006074","version":10},{"created_at":"2026-06-04T04:53:52Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 68.4→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"77780804a8c4bb178d2a155bc07216d3e74026b4523788ac3edc7f063c7340d0","version":9},{"created_at":"2026-06-04T04:53:52Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"6ed60cad71872ae09d79c3472c5603840adefe5084d6311fa81d7d92a18f3448","version":8}]}