appachan/rss-reader ? reverse-engineered prompt

Build me a simple Android RSS reader app in Kotlin. I want something that feels clean and easy to use, not overloaded with features.

The main flow should let a person add an RSS feed URL, see a list of their saved feeds, tap into a feed to view recent articles, and tap an article to read it or open the original link. It should handle loading, empty, and error states in a friendly way, and basic refresh should work so new posts show up. Saving the feed list between launches is important.

Please keep the UI modern and straightforward, with sensible defaults and enough polish that it feels like a real app, not just a demo. If there are already project conventions in the repo, follow them instead of reinventing everything. Add just enough structure and comments so it is easy to understand and extend later.

If you need to, look up current Android and RSS parsing docs online, then wire up whatever is missing so the project builds and runs end to end.