[Provider] Lower-cost DeepSeek/Kimi/GLM endpoint for testing

[jasonwhite661]

Hi Ali,

I noticed DeepClaude routes Claude Code to DeepSeek/OpenRouter and your README mentions the 17x cost comparison.

I'm testing a lower-cost China-model API supply (DeepSeek / Kimi / GLM / Qwen) via an Anthropic-compatible endpoint — same integration you already support.

Would you be open to trying it as an optional backend? I can provide free test credits and a side-by-side price/latency comparison vs OpenRouter/direct DeepSeek — no architecture change needed.

Two quick questions:

1. Which backend do most of your users pick today?
2. What would make a new provider worth adding to the README?

Thanks — happy to share results publicly if useful for the project.