{"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-yxsd9pzi","versions":[{"created_at":"2026-06-04T05:55:11Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.5→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"7177ecaabecc92e5737624d080931e698ec52e1741fe282d671e272593ea296b","version":10},{"created_at":"2026-06-04T04:55:04Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 63.3→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"122871c2bf7d0a5b9de0bc42a29f6b1a6665bb3a8009e0f405df1371dae650f9","version":9},{"created_at":"2026-06-04T04:55:04Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"40fc710f71c5854f9bcd7f0db440fdf6cc7ee3468fb9295816cd7bdd6d822027","version":8}]}