Mitoooooooopo/Achievement-BD — reverse-engineered prompt

I want an achievement system add on for my Ballsdex bot. It should plug into the existing bot and also show up in the admin panel so I can manage achievements there and have the related bot commands available in Discord. Please make it work like a normal Ballsdex package with the needed models, cog, transformers, admin side app, and migrations so it can actually be installed into an existing Ballsdex setup.

I need this to be compatible with the Ballsdex versions around 2.24 to 2.27 and the matching discord.py versions mentioned in the docs. Please keep the setup straightforward, include whatever files are needed for both the bot side and the admin panel side, and make sure the achievement data is stored properly through migrations. If there are common mistakes in the original code, go ahead and fix them. Also leave simple install notes telling me what to copy, what to add to config, and what command to run for migrations. Look up current Ballsdex docs online if you need to.