{"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-f78zjl7t","versions":[{"created_at":"2026-06-04T16:59:37Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.0->99.5)","saved_by":"editor","sha256":"717693f92389643d083f2279aaac3cb6be1fd074f81d62cb09e54acd3a9c22f5","version":11},{"created_at":"2026-06-04T05:55:21Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.3→91.0 (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 91.0 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"4bc76266c862995f1f6e9e1012e360f94c79f9dcc55d1669875489068f0f13f5","version":10},{"created_at":"2026-06-04T04:52:49Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 74.1→93.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"a1f292d22b3e1e8464392d5733f1a1063e60a248f1d0747386c5c1650fedf52a","version":9},{"created_at":"2026-06-04T04:52:49Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"35754e87c12fa4daea1886d53de80813192ae6bb333f468c7e1827c474db6f3e","version":8}]}