{"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-sxv4lx7b","versions":[{"created_at":"2026-06-04T05:52:14Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 96.5→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 100 環 96 楽 100))","saved_by":"editor","sha256":"5be544e2d06af5d7df00dd33f0fb7c89bbebe7983a092a195bbc74e23d13aff3","version":10},{"created_at":"2026-06-04T04:58:00Z","element_count":102,"note":"GA batch-improve 2026-06-04: 総合 45.5→96.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 96.5 (美 92 環 96 楽 100))","saved_by":"editor","sha256":"812990e0cace7385b28114056284e6ad1ee741c53b7341ff47456f6c57f6992b","version":9},{"created_at":"2026-06-04T04:57:59Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d96c0e78bb973aeadab5ee39133c400a77bf126e4fafc4b74b6b8e3f829de32b","version":8}]}