This change adds an explicit note in ziptuner.c about upstream Radio Browser API changes, including the move from id to UUID-based fields and country to countrycode, so the remaining integration work is easier to track. In the meantime, the playlist URL is pointed back at www.radio-browser.info instead of api.radio-browser.info because the newer endpoint was returning redirects and breaking station resolution. Practically, this is a small but important stopgap that should keep playlist fetching working while the client is updated for the new API.