{"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-oxaps2xr","versions":[{"created_at":"2026-06-11T01:22:09Z","element_count":90,"note":"5軸GA polish 45->98 by M5 (autonomous)","saved_by":"mcp","sha256":"4a6f55c5b2a3aeb705893729e48ce903a69f2838cc9271acfacafe6882637d34","version":14},{"created_at":"2026-06-10T23:10:47Z","element_count":54,"note":"legacy fix: jpy32860000→quote18218028 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"a89eabe9499e281ccc8d6121d72f9c340c4296d667da91d2d1155ad03398d3bb","version":5},{"created_at":"2026-06-10T22:38:07Z","element_count":54,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"469cea555e2c41634820826b78ac2215ad6a017bcc55957a076aa6e595415dba","version":2}]}