{"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-rwii2c4z","versions":[{"created_at":"2026-06-04T17:01:24Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.4->99.2)","saved_by":"editor","sha256":"6c48fc0f920f312f4837c50c3ee93e128a4de77768f2a778b4f3a93596f53a0f","version":12},{"created_at":"2026-06-04T14:57:07Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (91.3->91.4)","saved_by":"editor","sha256":"a3ddaa767319c520b92255dd31f3c357b08fa1a6d798bdd73784142127404582","version":11},{"created_at":"2026-06-04T05:55:06Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.6→91.3 (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 91.3 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"c5dd912e1107b3d23078caa8ad654b759b9c901e382e3aba2dfb4640ac7aef94","version":10},{"created_at":"2026-06-04T04:54:00Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 67.9→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"35023543e6600c3ee1e0d9f2a66f68454e93e7de702de2a34ce43d2e56c5996b","version":9},{"created_at":"2026-06-04T04:54:00Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"88f249dae96a5975fe18d9705e92c97b8365d6a5eb6796f7e52dca39b98e54b5","version":8}]}