{"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-ilayqv8v","versions":[{"created_at":"2026-06-10T22:52:42Z","element_count":63,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy84287347→quote22615183 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"ffa6b97060cc1570568b4cbb595197334e459e29b0203c40ad81fd3d505498a6","version":14},{"created_at":"2026-06-10T22:01:19Z","element_count":44,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"eabff4a93685ef987bf55b0bb1adaaf1d7b7620ee7970edd886a3a5301eb2a89","version":8},{"created_at":"2026-06-10T15:19:12Z","element_count":90,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"7fedf313ca988dc8a5af7174657afbccf50a1cd69d5d40cf9bc35514ae66a964","version":5}]}