{"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-86wo7zk6","versions":[{"created_at":"2026-06-04T17:00:43Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"8740def980e36b5586f3ff7a79b333a7c51e5317f068d8124091b3f72d8721c1","version":11},{"created_at":"2026-06-04T05:52:51Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"f97e34bc5b0db354c4d51c3397e6fce50befcafac8b05f8ee9074f71d09fa6a4","version":10},{"created_at":"2026-06-04T04:55:06Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 63.2→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":"9311a9c5963f914f5c4a341b8ba5bd0cd7fcf41aa4da483e7b61dacd93a743fe","version":9},{"created_at":"2026-06-04T04:55:06Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"3b464c0ee64d30b10c551a721a84b2cf759a43b2c7c1c364340661f4f8a5d0f5","version":8}]}