{"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-2ej9ano1","versions":[{"created_at":"2026-06-04T14:57:06Z","element_count":70,"note":"polish: batch-improve-100 2026-06-04 (94.0->94.6)","saved_by":"editor","sha256":"02860ec8c74662bf44dfca29b6dd6a8d435cd117c00592c9a8115708e01e758b","version":11},{"created_at":"2026-06-04T05:53:15Z","element_count":69,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4a263eb1cc77e57c22c617856175705cef048ada5c5c88e8e40b6829686351d8","version":10},{"created_at":"2026-06-04T04:59:30Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 35.4→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"27206d9d808f3083b56c8d28a7ff5f8826fa3f7ec9ef8c05426b00be0978f2cd","version":9},{"created_at":"2026-06-04T04:59:30Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4576cfd368277e7c3eb06924e7f22a37088f84f88346508867b8a085d65e4765","version":8}]}