{"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-1784rpvv","versions":[{"created_at":"2026-06-04T17:00:57Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (94.6->100.0)","saved_by":"editor","sha256":"d0f1606bdccd6c294bbd193b1d623721c7ef21c17182afaa965faf52b3223334","version":5},{"created_at":"2026-06-04T05:52:22Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"c8f649aa11326936fb49b2c9085ca0066659eadc865e44c00de3ad43855bc49a","version":4},{"created_at":"2026-06-04T04:59:11Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 38.0→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":"684db675d6c3c106643619a68c71e9de649adc6aa8178f5825f092b5904a23b0","version":3},{"created_at":"2026-06-04T04:59:11Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5a0546343cfd498799642413511f7d8f51bcebdee84156e93d5fe3d8b1346ae4","version":2}]}