feat: Support generic categories and MMLR-Pro mapping

[tao12345666333]

What type of PR is this?

feat: Support generic categories and MMLR-Pro mapping

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #119

Release Notes: Yes/No

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[github-actions]

👥 vLLM Semantic Team Notification

The following members have been identified for the changed files in this PR and have been automatically assigned:

📁 config

Owners: @rootfs
Files changed:

• config/examples/generic_categories.yaml

📁 src

Owners: @rootfs, @Xunzhuo, @wangchen615
Files changed:

• src/semantic-router/pkg/config/mmlu_categories_test.go
• src/semantic-router/pkg/utils/classification/generic_category_mapping_test.go
• src/semantic-router/pkg/config/config.go
• src/semantic-router/pkg/utils/classification/classifier.go
• src/semantic-router/pkg/utils/classification/model_discovery_test.go

📁 website

Owners: @Xunzhuo
Files changed:

• website/docs/api/classification.md

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🎉 Thanks for your contributions!

This comment was automatically generated based on the OWNER files in the repository.

[rootfs]

@Xunzhuo @yuluo-yx PTAL, thanks.

[Xunzhuo]

/hold for a while, will review tomorrow

[yuluo-yx]

LGTM, has left some comments. pls take a look.

[Xunzhuo]

code overall looks good to me, plz add UT around this feature

[Xunzhuo]

/lgtm
Thanks