{"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-2zd8hrf3","versions":[{"created_at":"2026-06-04T17:00:40Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.0->96.2)","saved_by":"editor","sha256":"91d6b9c23bb0fc687c0cc4e81de6547d3434a6cb3ba3f7cd0c9b0ca92c46a4f8","version":12},{"created_at":"2026-06-04T14:56:51Z","element_count":70,"note":"polish: batch-improve-100 2026-06-04 (90.8->91.0)","saved_by":"editor","sha256":"ed2e9881ce1e17297a9a34a2d46b5af3f959e8a64db8708500e432da7aa711b1","version":11},{"created_at":"2026-06-04T05:56:06Z","element_count":69,"note":"GA diverse re-design 2026-06-04: 総合 91.0→90.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 90.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f46c4e8f73bada611ac9953b19383727b812a7103223fe86e0e4d8b497ad131b","version":10},{"created_at":"2026-06-04T04:55:27Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 61.4→91.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.0 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"89fd611e383c70111b5e6c88b748406146e1a1c28f211b8b9874b7b81bb04566","version":9},{"created_at":"2026-06-04T04:55:27Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"fed7c414c003e8b264c05df0ce358a729e69a57a066cdeae9f960d55a287daac","version":8}]}