{"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-g2ldk-juuvp42t","versions":[{"created_at":"2026-06-04T05:49:34Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 100.0→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d93ef8886784380987e9edfd73ee2b26ddef21a87f251c52ea5e46702bb30175","version":4},{"created_at":"2026-06-04T04:56:42Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 51.8→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"93fbbba3eb042b1a41c21c1ec8ab646f40a22346dc22260d7db6b7dcbf9fffa3","version":3},{"created_at":"2026-06-04T04:56:42Z","element_count":16,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d2f7d3412e903ce01c83603deadd412c203af50302439fc9a648b094eeca5985","version":2}]}