{"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-40pwx73x","versions":[{"created_at":"2026-06-04T16:59:49Z","element_count":60,"note":"polish: batch-improve-100 2026-06-04 (90.1->94.5)","saved_by":"editor","sha256":"913ab2a1acc9e83190b20d178061d32d543395dd6f26eb44fdbb714ad0c64571","version":11},{"created_at":"2026-06-04T05:50:27Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.5→90.1 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 90.1 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"edb409d6940f1e43c9dcc65ff405f8b29401fa685cf322512ba2da4185cddc3b","version":10},{"created_at":"2026-06-04T04:56:37Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 52.2→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"ebaecde3958b52fc2559d29694829fbf9e52469ada7ef0372eccbd74e8f4f61f","version":9},{"created_at":"2026-06-04T04:56:37Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7e4e28b1fbb2819d723d826cce29ad25395f2bcd1843023f98093b7de4ac12fe","version":8}]}