{"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-hljxwvqg","versions":[{"created_at":"2026-06-04T17:01:40Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (91.4->99.3)","saved_by":"editor","sha256":"29099927aada56ecf2695d6e62db962302b53122c701cd90b19bc85850cf51a7","version":11},{"created_at":"2026-06-04T05:55:07Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.6→91.4 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 91.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"848ce6f2449649463614c31794432aba17c1e53e3ea58e6a881af91433273708","version":10},{"created_at":"2026-06-04T04:57:38Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 46.5→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d9c664b502a72cba7f4ce8320f3f94d41fae7e9a5d60da9a22b7c473f3db314e","version":9},{"created_at":"2026-06-04T04:57:38Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7609d67abe543a483ec57fb7dbd7415edd94d79d1363068ac72939b56b1f174e","version":8}]}