{"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-hgswzvvx","versions":[{"created_at":"2026-06-04T05:51:50Z","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":"aebdce2fb3fd157007a6b2ea8bd55e224c80ad8b66dc82d3d1db1831455a0bef","version":4},{"created_at":"2026-06-04T04:53:18Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 70.8→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":"0a8689281f0ae2732f13914bdeea020dc2ac53c393c42fbe9bdeb8fb1b898ec3","version":3},{"created_at":"2026-06-04T04:53:18Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"9554cb480029964b06b8757af845cfd90f2d8826dba91890840f31243fc36c5f","version":2}]}