{"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-g3cthpvo","versions":[{"created_at":"2026-06-04T05:51:06Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.1→99.1 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"d25d0d827bd44648b91ea27858da7c597297af7027a7b4af24adfdae20e33d91","version":10},{"created_at":"2026-06-04T04:54:27Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 66.3→99.1 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"1f2be3590b9d2960c1599638b728a50f4e22e367d3107544b128a83647b29087","version":9},{"created_at":"2026-06-04T04:54:27Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f23a1699eeac05739d0d67136a3359bdec90b31377c02736444326651346bb1e","version":8}]}