{"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-jyg6a5nn","versions":[{"created_at":"2026-06-04T17:00:42Z","element_count":79,"note":"polish: batch-improve-100 2026-06-04 (96.8->97.9)","saved_by":"editor","sha256":"9895a679d57d45a778503e570837896b7ce79ac3a29873d3c723a1fd2d238619","version":11},{"created_at":"2026-06-04T05:53:30Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 94.5→96.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 96.8 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"8e5f81d6965eca0424657cb7cfab9d650104f2e35b2a8690be5ab75689376303","version":10},{"created_at":"2026-06-04T04:59:39Z","element_count":71,"note":"GA batch-improve 2026-06-04: 総合 21.5→94.5 (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 94.5 (美 96 環 96 楽 91))","saved_by":"editor","sha256":"fac28e847c99925c873c2e385374fcec9e6fbaf7d2c6152830795b70e50f6e20","version":9},{"created_at":"2026-06-04T04:59:39Z","element_count":66,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f468d692c1d6f3c18252f671a83b838eb2ad870534aa958a099151d4a1018569","version":8}]}