{"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-nclsbgqg","versions":[{"created_at":"2026-06-04T05:51:36Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.1→98.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"c0ce716f03d13abc6f17a05ec7d987aa11e5fdfc12aaf2b0f42a007468201145","version":10},{"created_at":"2026-06-04T04:58:12Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.1→98.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"3f76c570e1817359d503861d94fa5012d70dcf13ad997aa1342431c09fe8fe02","version":9},{"created_at":"2026-06-04T04:58:12Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"796e82ed02ea123a44e3c9373bad847406447933e2b30a382aebc0cc3f1a7ad3","version":8}]}