{"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-w17j8e9k","versions":[{"created_at":"2026-06-04T05:49:43Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.8→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"e4eef6978cbff46e7a32f3c9e186ed52e2fee0f0b9af885f33545968573a1649","version":10},{"created_at":"2026-06-04T04:57:40Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 46.4→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"55740f3b7d9cc75fd0c0a12f4be71d4dd19d36fc3c3f8cca63c5be40d493b8cb","version":9},{"created_at":"2026-06-04T04:57:40Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"30e0a52203bead4f7630c591c4857a052d75d27e6ac43d383e23c3148152d12f","version":8}]}