{"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-g1-yly5pz0i","versions":[{"created_at":"2026-06-04T17:00:33Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (90.8->99.9)","saved_by":"editor","sha256":"382fb1ed759e8de4a8ddec1501c87755b928e4e63fdf135418fc032c2e409235","version":6},{"created_at":"2026-06-04T14:56:56Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (90.1->90.8)","saved_by":"editor","sha256":"b22ccc965706f876a114e02dd7e43b181bba7c7a4cacaf3a01ff2a899cd1f724","version":5},{"created_at":"2026-06-04T05:49:35Z","element_count":54,"note":"GA diverse re-design 2026-06-04: 総合 100.0→90.1 (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 90.1 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"ac4a8a69459cc6d769863e84019b11ca31341243fb8c6389b4cca1e025e55228","version":4},{"created_at":"2026-06-04T04:55:58Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 58.5→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"1502984cc2ac8784d1e4d8d04947b98ef56f6a89669bcd55e0612304082cd355","version":3},{"created_at":"2026-06-04T04:55:58Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e779b70ea726fb4917fd9ebcf9932de2eccb68f337e1136eadc5e48c52b909b3","version":2}]}