[Frontend] Consolidate Speech to Text entrypoints.

[noooop]

Purpose

Following #41907 #42274

Consolidate Speech to Text entrypoints.

Test Plan

pytest -v -s entrypoints/speech_to_text

Test Result

pass

---

Essential Elements of an Effective PR Description Checklist

• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.

[claude]

Claude Code Review

This pull request is from a fork — automated review is disabled. A repository maintainer can comment @claude review to run a one-time review.

[gemini-code-assist]

Code Review

This pull request reorganizes the speech-to-text and realtime entrypoints into a dedicated vllm/entrypoints/speech_to_text package, moving them out of the OpenAI-specific directory. It introduces a factories.py module to consolidate API router registration and state initialization. The reviewer suggests using relative imports for consistency within the new package and recommends explicitly initializing state attributes to None in the factory function to prevent potential AttributeError when certain tasks are not supported.

[mergify]

Hi @noooop, the pre-commit checks have failed. Please run:

uv pip install pre-commit>=4.5.1
pre-commit install
pre-commit run --all-files

Then, commit the changes and push to your branch.

For future commits, pre-commit will run automatically on changed files before each commit.

Tip

Is mypy failing?

mypy is run differently in CI. If the failure is related to this check, please use the following command to run it locally:

# For mypy (substitute "3.10" with the failing version if needed)
pre-commit run --hook-stage manual mypy-3.10