{"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-g3-8pfef210","versions":[{"created_at":"2026-06-04T05:51:10Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"82efe55c992c99b04060abf9587a495d7d37ae92329865f25365b1c28c5496af","version":4},{"created_at":"2026-06-04T04:57:49Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.9→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"931c007fbaaf926a7c69b15a038cf0bb666d3613e83f19d1d2a0cb059e6a87be","version":3},{"created_at":"2026-06-04T04:57:49Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4def21ff3e49f39b05d3a7ff463237c759f24d3cda32bfb35a13604e358cd2ca","version":2}]}