{"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-fs21o8xc","versions":[{"created_at":"2026-06-04T17:00:30Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.6->98.5)","saved_by":"editor","sha256":"34d8ca7f9213ef6646e6fe5f5321718db255add635d0c630e65f2a801dac195f","version":11},{"created_at":"2026-06-04T05:55:01Z","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":"7e6b7a19c221149a11ca67bd82e69cee8482e8c20f0a98d404bff1dec63f5b65","version":10},{"created_at":"2026-06-04T04:57:20Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 47.4→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":"769474e13aac030f4c7afd3f32ec86a8397b3ce42468e3ddb13a2ec28b1cf8c6","version":9},{"created_at":"2026-06-04T04:57:20Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a385312d79db74d4cb2845c8c17ff00e462e07a5e6d4f6aa44c66feabe73db7f","version":8}]}