{"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-p8lgag8w","versions":[{"created_at":"2026-06-04T17:00:13Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"44eaaa6ec44e77d19efff6aea855677cc41fab1631455a10c301b42f2206a032","version":11},{"created_at":"2026-06-04T05:53:50Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.8→92.4 (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 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"9de80626632d39af79137e9bac3b4575408a92d3715e32b7e04e13f0f50e4a2d","version":10},{"created_at":"2026-06-04T04:58:13Z","element_count":69,"note":"GA batch-improve 2026-06-04: 総合 45.1→93.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 93.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"80dbc6d11256c2e6a33577d2a629d803698bf14bd0f0af81d01c2ecdb439e8ee","version":9},{"created_at":"2026-06-04T04:58:13Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ed4236a48dc725eb8ea46c4b3c567e0affd9dd7a14546368b8139ccdcfacd893","version":8}]}