{"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-mwm9tr84","versions":[{"created_at":"2026-06-04T05:55:07Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f27e6a7ad7698ac6c94bf80423dba2ed4a835a5a1caecdb971243ad5537e6c91","version":10},{"created_at":"2026-06-04T04:57:38Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 46.5→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"bcf36656e26e7e31b990a9b151ede85a16ad0cf09ef5e7f7813c5f238f220af3","version":9},{"created_at":"2026-06-04T04:57:38Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"51162086d4d390210aae1cd4f0786cc4629c68d23653acdffdba4192998451ec","version":8}]}