Create a single instance of CowayClient that is used during the initial config flow and afterwards by the update coordinator. In the past, the creation of two CowayClient objects during initial integration configuration caused errors as Coway's servers don't like rapid back-to-back logins.
CowayClientthat is used during the initial config flow and afterwards by the update coordinator. In the past, the creation of two CowayClient objects during initial integration configuration caused errors as Coway's servers don't like rapid back-to-back logins.