{"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-15oatd6i","versions":[{"created_at":"2026-06-10T23:23:56Z","element_count":72,"note":"5軸GA polish 54->97 by M5 (autonomous)","saved_by":"mcp","sha256":"85ce2b037808438d19642372836d2a284738b0101eb6c8fcc9e2e0aa0001b5fe","version":10},{"created_at":"2026-06-10T23:07:46Z","element_count":54,"note":"legacy fix: rooms設備語除去 / jpy26330000→quote17797913 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"bedc5f62fcd43dbdb5763e332d60e0fcca1f96ef61bf6f411edb496658d1508e","version":7}]}