{"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-jai1np1e","versions":[{"created_at":"2026-06-10T22:54:24Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy102533759→quote21673268 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"1872acc719d001770cb33f56e308fa6098f1e9e56ed7c887c8f5ea300208c813","version":10},{"created_at":"2026-06-10T17:39:35Z","element_count":72,"note":"5軸GA polish 54->97 by M5 (autonomous)","saved_by":"mcp","sha256":"17171e7b13e02c666aa19e1216c54f709974b87693d7a0b4bace2bb67c04da16","version":3}]}