[aw3-technology]

Adds a docs page for Nivana, a hosted LLM router with an OpenAI-compatible API, under "More Providers". It uses the existing openai provider with a custom apiBase, so no code changes are needed.

• New page: docs/customize/model-providers/more/nivana.mdx
• Added to docs.json and to the Hosted Services table in the overview
• Config follows Nivana's documented OpenAI-compatible endpoint (https://nivana.one/docs/integrations), which supports streaming and tool calling

Happy to follow up with a dedicated Nivana provider class (like Tensorix.ts) if you'd rather have one.

Affiliation: I work on Nivana (built by AW3 Technology).

[github-actions]

Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

---

I have read the CLA Document and I hereby sign the CLA

---

_{You can retrigger this bot by commenting recheck in this Pull Request. Posted by the CLA Assistant Lite bot.}