{"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-z52cbf9u","versions":[{"created_at":"2026-06-04T05:53:07Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cf6e0826d2c1b4772abef942c6d4fcdc7307cd96d99145b0f15a86a9fbae00c3","version":10},{"created_at":"2026-06-04T04:55:50Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 59.1→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"887e757c9d6adc2990b644ecfc46d8108a335929c68250be565a7c2e1549a0d3","version":9},{"created_at":"2026-06-04T04:55:50Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f5a444797eabdbbfed7099eebb19f4e885b8b2b82c186e3f60d21d17b232545d","version":8}]}