{"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-elv1qye6","versions":[{"created_at":"2026-06-04T05:50:38Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→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":"03d613283089be1ad2e661632a2784791e675ac508f95bb15cebe38ab51dbba0","version":10},{"created_at":"2026-06-04T04:52:52Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 73.9→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":"338df01bd5bd056dbb9e24ade16ef3581669b12f09134b6ad4a365b65c41766d","version":9},{"created_at":"2026-06-04T04:52:52Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"3c6b373f865c1dabe4d47abc350ecc37499bdad0f4e45b90121d0f9ba0519435","version":8}]}