{"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-n6q5vka8","versions":[{"created_at":"2026-06-10T22:58:30Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy64133856→quote24557037 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"568b0df436dcf2b041a2f76a37a855d84eb2b6f762e077ae3eca10e989a33cfd","version":10},{"created_at":"2026-06-10T22:02:08Z","element_count":59,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"e36c364fbb1ddf2683d90ec8a1d6ecfbd873bc20ada072a12e58559c59f1d61b","version":4},{"created_at":"2026-06-10T20:07:28Z","element_count":72,"note":"5軸GA polish 60->93 by M5 (autonomous)","saved_by":"mcp","sha256":"dd2b6b33c6eeaf918e0f770176d91cd192e5e19708bed9834896ded1a3305460","version":2}]}