{"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-fhzn87qz","versions":[{"created_at":"2026-06-04T17:00:54Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.0->96.1)","saved_by":"editor","sha256":"7df39fcd39b22ef5d01b4f277d26f1cf8b42fd953f3b69b4473f6bcb89819533","version":11},{"created_at":"2026-06-04T05:56:04Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 91.0→91.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.0 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"ef9f0868e83b91824347f05a05870258780bd88fb0c2a082e0ab2d6afb0e8ed2","version":10},{"created_at":"2026-06-04T04:54:41Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 65.6→91.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.0 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"19f1d410b38b0369029c01ddf3bc3d1ba0031019f660a7b0b0dfe990cb5d448c","version":9},{"created_at":"2026-06-04T04:54:41Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"fed7c414c003e8b264c05df0ce358a729e69a57a066cdeae9f960d55a287daac","version":8}]}