{"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-low9f6hi","versions":[{"created_at":"2026-06-04T17:00:29Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (93.7->93.8)","saved_by":"editor","sha256":"9565f2e24af1467c45dae663d58193960db270c76e4c111c39c81e9559dc4ba1","version":11},{"created_at":"2026-06-04T05:53:59Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.7→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f2a983a5fa1ec9ddbc8617790184777f6b75dd4c6f19c90fca3ba2ec26fdf4a9","version":10},{"created_at":"2026-06-04T04:56:33Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 53.5→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"272ae15fde2caaa540bf8407d1f43f481b3c5ba14209bfe88c69a7c229d379be","version":9},{"created_at":"2026-06-04T04:56:33Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"08d03501a772aeddbfeb3799bdf6eba768e631475608c0657165fe568ad71ab3","version":8}]}