{"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-peumeykv","versions":[{"created_at":"2026-06-10T22:59:31Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy50261601→quote21425095 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"48691329e4b045d5fd538f12c4def9afd2459bed044a0442b70078a3dfe22562","version":9},{"created_at":"2026-06-10T20:38:17Z","element_count":89,"note":"5軸GA polish 43->93 by M5 (autonomous)","saved_by":"mcp","sha256":"1f3bb6f5b1146cfff47d0bd6e0da82876eee2171efcf1f989afc2c57b6367f2c","version":2}]}