feat: deepseek model for ai api

[joelhooks]

Summary

I wanted to use the deepseek api for it's reasoner as a planner network https://x.com/skirano/status/1881854481304047656

I didn't do the stuff below, wanted to see if there is interest in the PR first ;)

Checklist

• Added a docs PR that references this PR
• Added unit/integration tests
• Added changesets if applicable

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Latest commit: cb820e2

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