{"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-5bvzy1a9","versions":[{"created_at":"2026-06-11T01:05:12Z","element_count":70,"note":"5軸GA polish 47->96 by M5 (autonomous)","saved_by":"mcp","sha256":"332cc9083940a2daea40855334410f1579942bc26e07c1d6f9a492d6ec5f478f","version":14},{"created_at":"2026-06-10T23:10:44Z","element_count":54,"note":"legacy fix: jpy32860000→quote18255146 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"61793680806f464b0dab76e8cea05be1b5c5f01832aafd8ab6c07b4d1244c3d4","version":6},{"created_at":"2026-06-10T22:31:00Z","element_count":50,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"6a8a03032cfc4430e4af351d3d2d1a09a72857c56feefdb5e64c9e7c968d0b5b","version":2}]}