API Endpoint request: Support for open ended challenge for Stockfish Computer

I'm working on feature that allows user to directly challenge Stockfish right now I am pasting Stockfish similar BOTs' Lichess profile and hoping user clicks on profile link and go through creating challenge links steps. Stockfish can be played by anonymous players so I don't know why there is no open ended challenge endpoint for playing Stockfish. There is also no custom link where user can click on and directly start a Stockfish game. Hope devs consider creating a open ended challenge API endpoint for challenging different levels of Stockfish for different time controls.

Thanks!

Start by reviewing the existing challenge API documentation and examples, then trace how Stockfish games and time controls are currently represented. Define the endpoint, authentication and link behavior needed for anonymous players, along with a clear completion criterion for creating challenges across Stockfish levels and time controls.

Written by the indexing model from the issue text.