行情 API非展示型方案基礎檔案基金評級基金評級 GET /openapi/fundamentals/fund/rating • 功能說明：取得基金評級資料。• 頻率限制：速率限制每60秒60個請求 Request Responses200401417500OKUnauthorized: Authentication requiredA business logic error triggered when the request cannot be processed due to domain-specific constraints.Internal Server Error.