{"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-ehbiqcfm","versions":[{"created_at":"2026-06-10T22:52:46Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy85444799→quote19615588 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"3c18d69810181aad4dd6c9834aa8353da541a726179e1795cc6c8438682b8057","version":11},{"created_at":"2026-06-10T15:53:05Z","element_count":72,"note":"5軸GA polish 60->96 by M5 (autonomous)","saved_by":"mcp","sha256":"794d72307761948d2c00296113fd31253d73253157c79fb1e7289c3af0ca5d51","version":3}]}