{"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-ll4utwlm","versions":[{"created_at":"2026-06-04T17:01:02Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (91.2->99.6)","saved_by":"editor","sha256":"5b5e7c0c02ce5bb7cc234b0cc52854280fab720246959d7e86000fa217652a76","version":11},{"created_at":"2026-06-04T05:55:11Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.5→91.2 (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 91.2 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"d1fab6bb252f423b5458b03e425e4e4799b2e0700b51596973d522da589dd533","version":10},{"created_at":"2026-06-04T04:52:47Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 74.4→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"248848522ef6ed8703fe7bd9588bab58f626dbf9e788c262a16c3520e006fb34","version":9},{"created_at":"2026-06-04T04:52:47Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"63f44ea3947b3f88f0a447564f98aa753b396e230857ee1bf04fae06b054d8bc","version":8}]}