{"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-v9enlbqv","versions":[{"created_at":"2026-06-04T17:01:13Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"064e630ad8a542944eb857ff2e1c0e3a75c493d1fc145deef0b89def972bcb61","version":11},{"created_at":"2026-06-04T05:52:46Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"faecb7707fbfa274a16c696adae99bd5f799eab7c092786772194f52d942a608","version":10},{"created_at":"2026-06-04T04:58:33Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 43.1→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":"dbedc25835b8552103f4db3e11edd51c10d13395dcc968e5ede7b1381eda51e2","version":9},{"created_at":"2026-06-04T04:58:33Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2ce8e354d5f0f2eca15341f98ea26b2d7dc12b05fae816c519bac988a4403c0f","version":8}]}