券商 API帳戶 (ND)建立擬帳帳戶建立擬帳帳戶 POST /openapi/broker/account/nd/create • 功能說明：為新客戶建立虛擬帳戶。 Request Responses200401417500OKUnauthorized: Authentication requiredA business logic error triggered when the request cannot be processed due to domain-specific constraints.Internal Server Error.