{"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-19a2q5u1","versions":[{"created_at":"2026-06-04T16:59:42Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"a1c064c9cd4c2b9bcabff4877d85a55de0d8fabdb808c714eb5e72c0aafd5c01","version":11},{"created_at":"2026-06-04T05:54:52Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→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":"b054168001b4876b81c350cde4d780dbcbe54c9168811fcc5e9c672c0eb961b9","version":10},{"created_at":"2026-06-04T04:55:36Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 60.6→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"93eda940fc13145426630ed2980a501e33fd646400269fa9db58fafddb7dedfd","version":9},{"created_at":"2026-06-04T04:55:36Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"45f4d9f733e47794a8ed42999ae02310333dbc6f025cfda358a3e2bfef7b0cb6","version":8}]}