unbug/codelf ? reverse-engineered prompt

Build me a small web app called Codelf that helps developers find better variable names when they are stuck naming things.

I want to be able to type in a word or select some text, then get a list of real world naming ideas pulled from public code and other sources, so I can see how people actually name similar things. The app should feel fast and simple, with a clean search page, useful results, and a nice way to copy or save the names I like.

If it makes sense, also include a few extra sections like a daily coding tip or copybook area, and a simple place to organize starred or saved items. Keep it polished and modern, and make it work well as a browser friendly app first. If you need to check current docs or APIs for any part, look them up online.