Paintgliruin/gta6-build-cyberleek ? reverse-engineered prompt

Build me a simple C# app that helps me browse and organize a folder full of mixed project files and assets.

I want it to open a local folder, show me the files in a clean list, let me preview text based files, and make it easy to search by name or file type. If there are different source files like C, C, Go, Rust, or C# files, I’d like it to group them nicely and show basic details like size and last modified date. Keep the interface simple and easy to use, since this is mostly for viewing and sorting a collection of files for research and archiving.

If you need to, look up current docs online for whatever C# libraries or UI approach makes the simplest version work well. Please make it run from the solution in this repo and include whatever basic error handling is needed so it doesn’t break on missing or unreadable files.