{"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-2nrowa53","versions":[{"created_at":"2026-06-04T16:59:53Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.8->99.0)","saved_by":"editor","sha256":"099668d7c1215a3cce0309dc09f69d69a08356d7e6b50c792eee9d45f249b591","version":11},{"created_at":"2026-06-04T05:53:51Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.8→93.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"9290dde39dfe7ec214520f90ac0f4757a363dbe5451fa36b79ff0d1bdc640eab","version":10},{"created_at":"2026-06-04T04:59:14Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 37.7→93.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"24a129701ce9fca4d273718bbf441f8092aa7da77924d73bfcee41c1b9cda643","version":9},{"created_at":"2026-06-04T04:59:14Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"749e2408e7c86e62e7f5002f6bd150dd29acb34fb7c91b9280dec803a90e534b","version":8}]}