AnimeFire/Nitro-Generator ? reverse-engineered prompt

Build me a simple Python tool that checks a list of Discord promo or gift links and tells me which ones still work and which ones are invalid.

I want it to be fast, support multiple threads, and let me use proxies from a config file. If I add a Discord webhook, send the successful results there too, with an optional custom username and avatar. Keep it easy to run from one main script, and make the setup clear enough that I can just install the requirements, add my config files, and start it right away. If you need current details for Discord related requests or proxy handling, look up the latest docs online first.