{"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-leieiut0","versions":[{"created_at":"2026-06-10T22:53:13Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy40475808→quote21159829 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"6e779ff0d7d30a667a262a3445af26affa5b6fb7ebb8189a3d5ed6b52bbfa1e3","version":10},{"created_at":"2026-06-10T16:55:06Z","element_count":84,"note":"5軸GA polish 54->92 by M5 (autonomous)","saved_by":"mcp","sha256":"f9ba4b7afe302d7e67c19680f8cf8d7171ab2bf0d997f42e51881f81731e7315","version":2}]}