## Summary
- StepFun serves domestic (China) and international markets from
different domains.
- Add a `china` region URL (`api.stepfun.com`) alongside the existing
`default` (`api.stepfun.ai`) so tenants in China can route correctly.
## Change
- `conf/models/stepfun.json`: add `"china":
"https://api.stepfun.com/v1"` to the `url` map.
## Why
- Chinese AI/LLM providers commonly maintain separate URLs for domestic
vs. international markets. Keeping both options available matches the
existing pattern used by other providers (e.g. GiteeAI).
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>