2488 novita ai llm integration (#2582)

* feat: add new model provider: Novita AI

* feat: finished novita AI

* fix: code lint

* remove unneeded logging

* add back log for novita stream not self closing

* Clarify ENV vars for LLM/embedder seperation for future
Patch ENV check for workspace/agent provider

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Co-authored-by: Jason <ggbbddjm@gmail.com>
Co-authored-by: shatfield4 <seanhatfield5@gmail.com>