{"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-05rxwkv5","versions":[{"created_at":"2026-06-04T17:00:29Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.7->98.7)","saved_by":"editor","sha256":"85fa0ab57895d1d38bc352c74eac53ab9bead5f0bd95dd350d1f308578085df6","version":11},{"created_at":"2026-06-04T05:53:54Z","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":"49d8b04022ef555e4d35a26cb816036776b9a5cf4f3f3af4fb8b704b626bf5e9","version":10},{"created_at":"2026-06-04T04:54:52Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 64.9→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":"7ce13cbd977c8b19678b2506f39724e05f05d8e788094773d923511c7d9624ca","version":9},{"created_at":"2026-06-04T04:54:52Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"64edbdd6ba6a6ab13310a6463a5c297953b7c81a4bcf183b42c5ba69c000a8a4","version":8}]}