{"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-g3-gmt6kuv4","versions":[{"created_at":"2026-06-04T17:00:35Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (94.6->100.0)","saved_by":"editor","sha256":"2e71606eba48c6b5dc7131d1e87d6d04ba513ff72fa4c7fb1cf13946e2a52501","version":5},{"created_at":"2026-06-04T05:52:29Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"faecb7707fbfa274a16c696adae99bd5f799eab7c092786772194f52d942a608","version":4},{"created_at":"2026-06-04T04:59:05Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 38.4→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":"c36e64e69234ab076e1408da5a5d86fc2a81781cec05e9249ff527119d83918a","version":3},{"created_at":"2026-06-04T04:59:05Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e657c03bfa4f7ed6852f05d0b763ebf0b41616cab0fff3eee10539b82d6e34a7","version":2}]}