{"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-antyb8ck","versions":[{"created_at":"2026-06-04T07:22:14Z","element_count":98,"note":"GA polish 2026-06-04: 総合 96.4→99.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"c099f4f73befc1afa3b53783625167f48822645d2bfec799fbf2f24cc9867eff","version":11},{"created_at":"2026-06-04T05:55:57Z","element_count":101,"note":"GA diverse re-design 2026-06-04: 総合 92.0→96.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 96.4 (美 92 環 97 楽 100))","saved_by":"editor","sha256":"91997b1831a13f03b86134d5049b6b84bf7d60ea6543d85658833739de791b76","version":10},{"created_at":"2026-06-04T04:55:14Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 62.6→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"e05affff82f2acc27ec180453547aa6a2c8eaa2878cd3458ca72981110bdc5e8","version":9},{"created_at":"2026-06-04T04:55:14Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b7941f3012537915c6bdc27e82f482690f57705914948f007709ae972debecbc","version":8}]}