{"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-9c9ykntb","versions":[{"created_at":"2026-06-04T17:00:53Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (92.0->96.2)","saved_by":"editor","sha256":"af86139451853078ed3f6ab1d4eb4b5b656ad7616e40f5559b133458dacffd56","version":11},{"created_at":"2026-06-04T05:55:58Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.0→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"ed62501f507c81c82a78c127bee657993ee5f2bb0c1c866ce71c2b585ae786a6","version":10},{"created_at":"2026-06-04T04:54:19Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 66.7→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"9cddd453e75a6730c011225f1fccd05eeddd7dd0c3f89c35a8c3cd98797e0a92","version":9},{"created_at":"2026-06-04T04:54:19Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"22be50c629afd9c275e26567ca95d627532cd353e44cca6ee2dda9dfab8e100e","version":8}]}