{"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-bigeb158","versions":[{"created_at":"2026-06-04T17:01:18Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (95.8->96.8)","saved_by":"editor","sha256":"0f63047a809eedd887b35a1cfcfcdeef51cb60fd69f2606b578934c5598e4aaf","version":11},{"created_at":"2026-06-04T05:51:18Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 98.7→95.8 (総2階(箱)・吹抜 ピアノ室 PV 雨水 南面サンルーム / 適応度 95.8 (美 95 環 99 楽 91))","saved_by":"editor","sha256":"33ab2b3287a3834c155fc8b1c35c618355f856b4b4e963b0894962e10abaa9fb","version":10},{"created_at":"2026-06-04T04:54:31Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 66.1→98.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.7 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"b4933846c1aff8b2aa96c634f41862e67cdc8142480f0dea3a873c853dba6ffb","version":9},{"created_at":"2026-06-04T04:54:30Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"01c639b2357bc68368a706b9c091cf1cee5766c41a18b454809e57ae9ec94f71","version":8}]}