Dev-Aditya-More/Stashly ? reverse-engineered prompt

Build me an Android app called Stashly that feels like a clean modern place to keep all the little things I want to save. I want to be able to add text, links, and files, then view everything in a simple organized card style so it is easy to browse later. The app should have a polished Material look, smooth transitions between screens, and a nice content saving flow that feels fast and easy to use.

Please make it feel like a real everyday app, not a rough prototype. I want the UI to be simple, attractive, and built in a way that can keep growing over time. If you need to look up current docs online for anything, go ahead. Focus on making the main experience solid, saving things, organizing them well, and making it pleasant to open and revisit my stash.