{"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-3nd9gn7x","versions":[{"created_at":"2026-06-04T05:50:24Z","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":"b12f52e206822d695b8527c53f991787b34cffc22343912a8472484249de2122","version":10},{"created_at":"2026-06-04T04:52:41Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 75.0→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":"402668db8d83192d8a29b80f50daf1176d77c948ae4b1e5d04f43067f88b11e0","version":9},{"created_at":"2026-06-04T04:52:41Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5620d150a5c5abb8750d94bd6b518f468eb322b2e08edf7f0d4e0de44481c4fb","version":8}]}