{"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-theleedsriversidehou-i9g3ue4k","versions":[{"created_at":"2026-06-10T22:53:38Z","element_count":77,"note":"legacy fix: jpy75041820→quote20065976 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"9a566cdb0b68cc4bf9b1ef395ac964d6a3aff3c4538dc9dba9f00b4664f97910","version":10},{"created_at":"2026-06-10T16:55:14Z","element_count":91,"note":"5軸GA polish 43->98 by M5 (autonomous)","saved_by":"mcp","sha256":"2379fbb4259ba723a39fc1cd35b395cd7bac4afdd8efd953db8f894b0f4dd8ce","version":2}]}