{"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-craiglockhartlodge-gfmna4jy","versions":[{"created_at":"2026-06-10T22:53:53Z","element_count":66,"note":"legacy fix: jpy75041820→quote21491622 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"06a62294a41e79b286c9f9f010219568a185261aec58de9ac0698b9d03059584","version":10},{"created_at":"2026-06-10T17:08:53Z","element_count":91,"note":"5軸GA polish 43->98 by M5 (autonomous)","saved_by":"mcp","sha256":"4d5cd88cf12a79b4251d9873de7f57a4c52473a6445b9e1a6a13d97bb5a7c6ed","version":2}]}