{"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-gszg1bif","versions":[{"created_at":"2026-06-04T05:51:23Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.6→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 99 環 100 楽 100))","saved_by":"editor","sha256":"ad95cb72f6276d3c7a7853ac4929ca12a2e786db0c1eb12379b3bde080184726","version":10},{"created_at":"2026-06-04T04:54:29Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 66.2→98.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 98.6 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"33091358726194c3902596b9d03ecf9d2c7a9f6f1e6ca0ea143aaed003df7abf","version":9},{"created_at":"2026-06-04T04:54:29Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2e99b730079dd5c9e094b7b92d57c7c4023e0e53af3992b363d5c70938b00c0c","version":8}]}