{"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-2-ek2rk837","versions":[{"created_at":"2026-06-04T07:22:20Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"1f640667a1a4803c1566ca1c7be65660466d051b5e1644c710188caefc1f0470","version":11},{"created_at":"2026-06-04T05:54:54Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 93.6→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"a78b53c4ba1f270837853de8db5d54e847f0d6d7d3644bb88e8f317c921d6f5b","version":10},{"created_at":"2026-06-04T04:55:26Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 61.4→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"49a78fc3c6038f819762d536faf1d6b2cd04bd1407c70273e7521ca26935d62f","version":9},{"created_at":"2026-06-04T04:55:26Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a43c139e08d2723d690f56c76608f27befce8418f7bd67ad5139e0045770c157","version":8}]}