{"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-2-iynrazbt","versions":[{"created_at":"2026-06-04T05:51:53Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.5→97.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.5 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"1bdb5efd5bb29b6edbe8d88f70a64eb7d68477b79cc7c9f022bc80fc0ddd457f","version":10},{"created_at":"2026-06-04T04:58:15Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 44.9→97.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.5 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"ed50872cada66331635c5a4dd06035c928b09fb8728373288a0db9c2008c9fc4","version":9},{"created_at":"2026-06-04T04:58:15Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"00e92819fa035079bc6265b709d52e385c8915ed6083fb95766104fc21d03fd6","version":8}]}