{"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-y8686bfi","versions":[{"created_at":"2026-06-04T17:01:12Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"c4d84024516abab8ddd439fb0de0da574d14c761607362ebc8b9c7e460a09d32","version":11},{"created_at":"2026-06-04T05:55:33Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.0→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"ff190d2f056ce659ab844c8850bde4ce7a9002d53a221a4b390b7db1045e9b0a","version":10},{"created_at":"2026-06-04T04:55:13Z","element_count":71,"note":"GA batch-improve 2026-06-04: 総合 62.6→93.0 (中庭ロの字・吹抜 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":"312896616ebc2dd113a0601830d9e36bac727272bd5ad634bde2aabe2aa3a36a","version":9},{"created_at":"2026-06-04T04:55:13Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7473aec080431ac994fe93948850fa0c53c19579729029edf1c8edfc087ac646","version":8}]}