{"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-vhdj57pf","versions":[{"created_at":"2026-06-04T05:51:05Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.1→99.1 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"1881f384d803eed56601e0ff4184ff9aa3b266d7f16bf79257c7fc31d3a8dd60","version":10},{"created_at":"2026-06-04T04:55:28Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 61.3→99.1 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"72bc33d362bfb8118216130cc8cd83d3e57af3e698e3d45d3e905ea9b91f970a","version":9},{"created_at":"2026-06-04T04:55:28Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f23a1699eeac05739d0d67136a3359bdec90b31377c02736444326651346bb1e","version":8}]}