jenrielreyes2023-blip/katsklub-flutter-app ? reverse-engineered prompt

Build me a polished social app called KatsKlub.

I want it to feel like a fun place for people to share posts, see updates from others, and move around the app easily on mobile and web. Make the home experience feel lively, with a clean feed, simple navigation, and a style that feels modern and friendly. If there are any existing visuals or assets in the project, use them so the app feels consistent instead of generic.

Please make the app run smoothly, keep the layout responsive, and make sure the basic screens are wired up well enough that it feels like a real product. If you need to check current Flutter docs or best practices, go ahead and look them up. Also make sure the code is organized in a way that would be easy to keep building on later.