{"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-d3w5modx","versions":[{"created_at":"2026-06-04T05:51:50Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.5→97.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.5 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"26036e7222adc031f52604371e12801f3155e192d608389a66265072a5e7ca7f","version":10},{"created_at":"2026-06-04T04:53:31Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 70.0→97.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.5 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"ba0c9d79a68748a5a4f52f0e1230d3ca22c0b0c1230aeee6769f56bb51eb85ca","version":9},{"created_at":"2026-06-04T04:53:31Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f25e61f0d3350009bfde33e11326b72fee89a53de305a45285779a5589bf88af","version":8}]}