{"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-id4h8ktx","versions":[{"created_at":"2026-06-04T05:51:41Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.9→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e187db3003d7231d305084c8b9a744860e98b99b1f354362dbf27e40fd95d63b","version":10},{"created_at":"2026-06-04T04:57:43Z","element_count":97,"note":"GA batch-improve 2026-06-04: 総合 46.2→97.9 (中庭ロの字・吹抜 ピアノ室 PV 天窓 / 適応度 97.9 (美 100 環 90 楽 100))","saved_by":"editor","sha256":"921d946116bc614049b2b0b242cd95e71b813781af972173b72bc3eefa097df9","version":9},{"created_at":"2026-06-04T04:57:43Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"090ab925a4e8afd34fcd96053e8d9adef48b5e066774281ea828aa5ddbe1b5e9","version":8}]}