{"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-house-5o4qxpj7","versions":[{"created_at":"2026-06-04T05:51:16Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 98.8→98.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 98.8 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"e6d32dad988976fc042c11304dc52abfa669a398bf703c308ad446a9b97d6622","version":10},{"created_at":"2026-06-04T04:58:03Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 45.5→98.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 98.8 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"a7a83c46cec27dc7ac346609e45f0715b51dc04f47bc9376e70a750c7b4276c1","version":9},{"created_at":"2026-06-04T04:58:03Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4d2167df669fa6cac9cf4aae8efa59661afd049733acc2e241caee957a5a8cc4","version":8}]}