{"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-dx8pzw8d","versions":[{"created_at":"2026-06-04T16:59:56Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (92.0->96.2)","saved_by":"editor","sha256":"62badb4991f753756860ae0339ecbd16bbfc91ddeae8ace471b833177170f83e","version":11},{"created_at":"2026-06-04T05:55:56Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.0→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"6385da50373bd3fbe5c4edca7d11605c596efe1f1f10cca35c628fead30079c6","version":10},{"created_at":"2026-06-04T04:57:53Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 45.8→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"5a387191920d531088391d51bdd069c74baaf1ee0f43e5d2596cc40d52664ab8","version":9},{"created_at":"2026-06-04T04:57:53Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"df4ea33c98e84b5e34a0cbe2b4fda25125477ba1ca048e907c0bbbeb388b7dc3","version":8}]}