{"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-u8v93mp3","versions":[{"created_at":"2026-06-04T07:22:23Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.2→94.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b689d303a4d9070adbdad58a5d8c9d45a61f0913f2b8639c890fe51689ebc0bd","version":5},{"created_at":"2026-06-04T05:53:36Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 94.2→93.2 (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 93.2 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"303240cf338ebc661b107e8661c26adaac3306fe54a1366cf277e94f396329b4","version":4},{"created_at":"2026-06-04T04:52:56Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 73.5→94.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"767636be05607c0559ba354c04f3aa7949f111c2567828f6e65b9046d3edd84a","version":3},{"created_at":"2026-06-04T04:52:55Z","element_count":47,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"dbf9bd2ec4edd9bce54412de351bd4f20e467674254fb07adfe7c085e89bd74a","version":2}]}