{"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-g1-ugm1ii0b","versions":[{"created_at":"2026-06-04T16:59:28Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.1->98.2)","saved_by":"editor","sha256":"9c8afca534eed0bc1a942507e82da11cf2025834140b23a0f7abd067f955e87c","version":5},{"created_at":"2026-06-04T05:52:03Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 97.0→90.1 (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 90.1 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"8891cae4860161651bd04c57a23b26a0060599045e909f8f38cd8fd17b07ebb7","version":4},{"created_at":"2026-06-04T04:54:08Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 67.3→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":"bef42ecfd4524036b20248e792d634cfafea071c2ec43285c2eb11996a380972","version":3},{"created_at":"2026-06-04T04:54:08Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"afffd9af51aec71c052e2664adfc92bb13740e222cafe9bb6c9d69758a97e2eb","version":2}]}