{"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-6g6dtjwi","versions":[{"created_at":"2026-06-04T05:50:25Z","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":"d8e3313abf75acd68031aa708f5f8d0b1008d55ee7f01bc5f542bd499ddad5c4","version":10},{"created_at":"2026-06-04T04:57:22Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 47.2→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":"27ae12de88ebf8a45d22933f1300ab546f32f9a46a7ab698041b7a96dd55096f","version":9},{"created_at":"2026-06-04T04:57:22Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8846e42d90dce6511c1c32a6e6d2565692029dc6b093126c3ada6f4be64d8748","version":8}]}