Include Kimi K2 in the list of tools/models

[MoralCode]

I think somewhere in this codebase we have a list of model names that we look for in case they are casually mentioned. I haven't seen Kimi K2 too much in the wild but i know t3.chat has it as one of the free tier models, so including it may be a good first issue

[omkar-foss]

Hi, I saw this issue, I've included a test case for Kimi K2 here. We can add it to this list here after #33 is merged, and Kimi K2 will start getting detected as a tool.