{"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-9dd0qzoh","versions":[{"created_at":"2026-06-04T05:51:27Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.3→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"384541571002a2d2b4fe0b6670b6cfb9662813aee6a812ed183b5f0a526f1154","version":10},{"created_at":"2026-06-04T04:56:54Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 49.5→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e2b79f1e21a387ab8c7e32a72e2b05dc354f88af519dc1fbe2a7c594c5e814fa","version":9},{"created_at":"2026-06-04T04:56:54Z","element_count":51,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"69bf6f11050a70bf0622cfb11f651809c97a2ff0f43a1c8ae6a5e64afbcc48d0","version":8}]}