{"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-84hdp394","versions":[{"created_at":"2026-06-04T05:51:16Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 98.7→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"30aed111e61341890aed63ff48c8c89c964e89ce6ea6f2aa9505499eb08b4172","version":10},{"created_at":"2026-06-04T04:53:53Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 68.4→98.7 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 98.7 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"1eb1d49516b05d96bf7f62dd1e19b8481e8f9f2e05bcae16d2811513029a85fb","version":9},{"created_at":"2026-06-04T04:53:53Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5f49beb413ca465ab2c3368e0ef785be977f68c66ab45691822d1b9aa73feff3","version":8}]}