Create a "Podcast Cache Playlist" to enable offline listening in the U.S.

Description: Since traditional downloads aren't available in the U.S., a dedicated 1GB "Cache Playlist" would allow users to listen on the go while staying compliant with licensing laws.

Details: The idea is to have a specific playlist where podcast episodes are temporarily cached up to a set limit (like 1GB or a set number of episodes). When the cache is full, the app should prompt the user to swap an episode out. Most importantly, finished episodes should be "greyed out" or marked with a "played" icon. This makes it easy to see exactly what to remove during a road trip so you don't waste precious cache space on content you've already heard.