{"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-oojkperq","versions":[{"created_at":"2026-06-10T22:56:46Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy81784771→quote22600161 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"8e890d70ede0f0e92c9d237539d3b5da547460bbedf875a67633a4a9f49472fb","version":10},{"created_at":"2026-06-10T19:02:33Z","element_count":83,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"9948669e6451734f69a1065dabdda019c4ebd37c9d3b2bf4ca29d7ac67645b4f","version":3}]}