{"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-yir67icq","versions":[{"created_at":"2026-06-04T05:52:14Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 96.4→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"959a27b2160ea7b578e106e24d3094d3eb3a4e592697ce8db47eebee27b6df6a","version":10},{"created_at":"2026-06-04T04:52:33Z","element_count":102,"note":"GA batch-improve 2026-06-04: 総合 79.8→96.4 (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 96.4 (美 94 環 100 楽 100))","saved_by":"editor","sha256":"74d4d4baffc6d870ff013c5d7423961b3a78b1fcbcf9aaaf3030df2ec78e076d","version":9},{"created_at":"2026-06-04T04:52:33Z","element_count":44,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"26fefc2070226db18a55434d847a4bfb6bd48c3c1e0642f1d0d6add7c72d1d0c","version":8}]}