{"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-g4-n44l5gi4","versions":[{"created_at":"2026-06-04T16:59:53Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.6->98.5)","saved_by":"editor","sha256":"ecee53ac80e102022bf1468a941453af8e6ee04cecb042e958cddc40cba763ff","version":5},{"created_at":"2026-06-04T05:55:00Z","element_count":70,"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 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"aba114ed6d2cf04d29a3321a67123067da808bd25a95c12ddf0b52d386bea26c","version":4},{"created_at":"2026-06-04T04:59:18Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 37.3→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cc02c3f2b8a2b77393a35be0b42246b1a9beaf682a65317deb981c024450391a","version":3},{"created_at":"2026-06-04T04:59:18Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"63db38412164a26a78beec2f3bda91cf274f3c6936ca9c828e87531511d6190d","version":2}]}