{"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-61arv6cf","versions":[{"created_at":"2026-06-04T05:50:33Z","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":"24025d64f44b2efa5386f087f65bfec6db01d5dabe4be6668f225c02fb76689e","version":10},{"created_at":"2026-06-04T04:56:18Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 56.4→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":"7b3350e40c52d7662ecc39433699dbf960e6c53b0af4d7cdc811b42b21d47413","version":9},{"created_at":"2026-06-04T04:56:18Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a4ebd13af4bd4d1ffcd0f787a1cae2bd71c407f341bef84748a29ac81bf07b28","version":8}]}