{"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-0g11wvec","versions":[{"created_at":"2026-06-04T05:55:26Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.2→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"24c290b9ad0e71ebaad343f1a07f5f1147ad4cb6cd4c0f91f6a50515fd41833e","version":10},{"created_at":"2026-06-04T04:57:12Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 48.0→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":"0a56abf87f41709b6d923e07ae28b2eed8c0a2e13e00eefff16dd8cf707255ac","version":9},{"created_at":"2026-06-04T04:57:12Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2bc9a59e94c147ba83965a135599fa8c72912a81f566b2b37c271eacab738d53","version":8}]}