{"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-engawa-g96d2d5q","versions":[{"created_at":"2026-06-06T19:47:45Z","element_count":55,"note":"GA night 2026-06-07 R1: 総合 92.3→92.4","saved_by":"editor","sha256":"093b4db789124280d83f83d38c0bf43b06f57dfb66bb9871ab55d12f44565dc1","version":11},{"created_at":"2026-06-04T05:53:25Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.6→92.3 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.3 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"8be4aa3c28729414381a7cdac1e4080e2c195e8cff2da4f997cf7a66bfd78dd5","version":10},{"created_at":"2026-06-04T04:56:32Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 53.8→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e2a74a490c19870dcf56915e3e1a560eeb51edc78a21a199ff6ee79f40e8842c","version":9},{"created_at":"2026-06-04T04:56:32Z","element_count":16,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"11685b918912a5aa444f6e0ac7abb72b79ecc3487edf06e97748331deba5ce97","version":8}]}