Support stop_token_ids in sglang API

[hnyls2002]

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Motivation

Support stop_token_ids in SGLang API.

Modification

1. add API support.
2. always check whether the current token is in stop_token_ids.

Checklist

1. Ensure pre-commit pre-commit run --all-files or other linting tools are used to fix potential lint issues.
2. Confirm that modifications are covered by complete unit tests. If not, please add more unit tests for correctness.
3. Modify documentation as needed, such as docstrings or example tutorials.

[merrymercy]

Looks good. Please fix the CI.

[hnyls2002]

@zhyncs Even with retrying, the moe throughput varies a lot. I modified this to 930.