{"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-k9qx7yst","versions":[{"created_at":"2026-06-04T07:22:06Z","element_count":98,"note":"GA polish 2026-06-04: 総合 97.5→99.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d91f7865bdffe6370159a2b96c3ffa501b7ad2e83543614836d21a6db6882e39","version":5},{"created_at":"2026-06-04T05:50:48Z","element_count":101,"note":"GA diverse re-design 2026-06-04: 総合 99.4→97.5 (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 97.5 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"8bfb2e7389fd9bb623a4e998d3386bb94efe859a305191b3889ca447db0eb642","version":4},{"created_at":"2026-06-04T04:59:13Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 37.9→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 98 楽 100))","saved_by":"editor","sha256":"881dee6a6cdb34a265765cb8d1f0034d9f734cc236960b1f90634e58ca8b9eca","version":3},{"created_at":"2026-06-04T04:59:13Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7f71ef1a077f7d7598450a188d11f8c313772bad75566121f0cb2ad468a3a154","version":2}]}