{"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-zz6ds08a","versions":[{"created_at":"2026-06-04T07:22:09Z","element_count":98,"note":"GA polish 2026-06-04: 総合 97.0→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":"7843d4409f71d1a82a8959555d27b9fe236ae98f9b238a62abb49070a68d1a60","version":11},{"created_at":"2026-06-04T05:56:03Z","element_count":101,"note":"GA diverse re-design 2026-06-04: 総合 91.2→97.0 (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 97.0 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"7fd5fc13ea157dedd5c9ee3192825e4a84755ee5c23f6831b3ee861041176c47","version":10},{"created_at":"2026-06-04T04:53:33Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 69.9→91.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 91.2 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"6a50dcb24be4c8d385d3c3b715302cc79338a733d337ffa22cf24f9834caa788","version":9},{"created_at":"2026-06-04T04:53:33Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0e3b6989e701c54b94c695138b57b9c67dd70e91f063c86e33fb8cfca5dd2fd7","version":8}]}