{"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-osapihgs","versions":[{"created_at":"2026-06-10T23:01:04Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy85444799→quote20863604 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"eeb0f173bef95e36d38bd39098d775bbf266b04a2556207aa5737bd91966e6eb","version":9},{"created_at":"2026-06-10T22:00:57Z","element_count":72,"note":"5軸GA polish 60->97 by M5 (autonomous)","saved_by":"mcp","sha256":"b710f7e660c24441f52502dd5aecae88db88d1768eaddee865efdc191122a5d3","version":3}]}