execute
abstract fun executeConfiguration(callback: TerminalCallback<ConfigurationResult>): TerminalCall<ConfigurationResult>
Downloads terminal configuration using SI(CONFIG).
This operation does not run acquirer initialization. Use executeInitialisation for SI(INIT). Final business failures are returned as ConfigurationResult with USER_ERROR and an error reason; technical failures are delivered through TerminalCallback.onFailure. Enrollment or certificate readiness failure rejects the request as TERMINAL_NOT_READY; an active terminal operation rejects it as TERMINAL_BUSY, without dispatching SI(CONFIG).