{"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-g5-4pq9u3vm","versions":[{"created_at":"2026-06-04T14:56:45Z","element_count":70,"note":"polish: batch-improve-100 2026-06-04 (93.7->94.1)","saved_by":"editor","sha256":"35aec7bebb7cd564b71d62e985ce06ff700d051b2424abe729421fc1afe44db5","version":5},{"created_at":"2026-06-04T05:53:42Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.1→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 98 楽 100))","saved_by":"editor","sha256":"dbcde4a1772d1a4c421585cc5c5ea12446d8350fe1d6eb565821ed75693cee3c","version":4},{"created_at":"2026-06-04T04:56:11Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 57.0→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cf660912a6e55dc5fee127fc8674ada595448e34631efb872e50300784e35437","version":3},{"created_at":"2026-06-04T04:56:11Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f6a4f8b7660eb9a05e7814d9246cc5ac40f0a5d06ed276faf4a10f4990dd1291","version":2}]}