{"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-uz0fuk9u","versions":[{"created_at":"2026-06-04T05:55:37Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.6→93.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"9f8f46ac2cbce0b2cbd0a5b9b20256f3cd890dd254063d7b7d6fe7ecd94c67cc","version":10},{"created_at":"2026-06-04T04:54:56Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 64.4→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.6 (美 94 環 100 楽 100))","saved_by":"editor","sha256":"8d3086309bcbcb6564b6f8bbd043e0e43d921f9269a91a2106e0c8e8ee2cff2b","version":9},{"created_at":"2026-06-04T04:54:56Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"051a11f2942ccd1f3e3e054cec6bf3cf5c13bc1274206d817fa5341e7dd7c924","version":8}]}