{"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-2-git8jmx0","versions":[{"created_at":"2026-06-04T17:00:54Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.9->100.0)","saved_by":"editor","sha256":"53d55df6f343b74be061198df404e62cf71dea6ea6e3bb7d3710baf992b00982","version":11},{"created_at":"2026-06-04T05:55:33Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.0→91.9 (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 91.9 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"800068cf3c5a284e055dff586cbcec9e43f3e3e907bbd34c5659b4af6f23a884","version":10},{"created_at":"2026-06-04T04:59:27Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 35.8→93.0 (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 93.0 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"5e415ce1c305984b0e3d8bb6365c8168ab6420ca8ae5a8854f51720ef2869048","version":9},{"created_at":"2026-06-04T04:59:27Z","element_count":17,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ba64f682720e6fce059f8e413c01a2719ff56b3b964b7395112744f1c0e00092","version":8}]}