{"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-3b9q5ly1","versions":[{"created_at":"2026-06-04T07:22:19Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"3db755def025d2536c22e3b9a518d65bf2df8fd98945b6939abe457f96c5d222","version":11},{"created_at":"2026-06-04T05:53:03Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 94.6→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"e00f8788e710100aab248624d15d7eb888f1e698dbefe4a21281547527a5ae3f","version":10},{"created_at":"2026-06-04T04:56:19Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 56.3→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"2efbd8c5f7e682a83095b0fd62bea981da9452e8977571a7dc15669ccf6abc1b","version":9},{"created_at":"2026-06-04T04:56:18Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a6061a9d60c188ba7e5ac0199cca5dc274dafe95f3c5a777cdb65d57364f3db7","version":8}]}