{"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-odysseysquareresiden-eufh7rwo","versions":[{"created_at":"2026-06-26T06:40:38Z","element_count":89,"note":"5軸GA polish 39->93 by M5 (autonomous)","saved_by":"mcp","sha256":"4f1717752cc4b62c492d2d796a6a2b3565301a15e3eb7e8a6b3bd994aa3ae38d","version":3},{"created_at":"2026-06-26T06:29:08Z","element_count":119,"note":"loop3: 設計時延床 65.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"69e55dedb3b0e216e1bb40191bead1037fca78721e0f2273d2d08c0f4a073506","version":2},{"created_at":"2026-06-26T06:29:08Z","element_count":119,"note":"言葉から生成: LDK+main bedroom+2 kids rooms+bathroom+storage","saved_by":"mcp:create","sha256":"","version":1}]}