{"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-sauna-s9yluh9h","versions":[{"created_at":"2026-06-04T14:57:05Z","element_count":72,"note":"polish: batch-improve-100 2026-06-04 (94.7->94.8)","saved_by":"editor","sha256":"2f59095535438af022e3db9bf742cba330d9f9cbd5121d4dd564b2060db584ed","version":11},{"created_at":"2026-06-04T05:52:20Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 95.4→94.7 (総2階(箱)・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 94.7 (美 95 環 94 楽 91))","saved_by":"editor","sha256":"20e7e03b802ca986f5c2cb388b5c441fd73a6d2f2fe113b94ab4573e9274f729","version":10},{"created_at":"2026-06-04T04:58:18Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 44.9→95.4 (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 95.4 (美 93 環 97 楽 100))","saved_by":"editor","sha256":"7aaa10782b6e47889069dc703d1f1b89e5f813fbb7653c82a7ec9c79de119408","version":9},{"created_at":"2026-06-04T04:58:18Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"386435bb088b4b5db5364dfbb788ca3cdc940429ee6ccb7f123bc9d44ce179ac","version":8}]}