Description

• Update multimodal.md to include new models supported over the past few months.
• Add Qwen3-Omni announce in the qwen_moe doc, including E2E test scripts.

Tests

Build docs for readthedocs:

# Build:
cd docs && sphinx-build -b html . _build/html

# Serve:
python -m http.server -d _build/html

Checklist

Before submitting this PR, please make sure (put X in square brackets):

• I have performed a self-review of my code. For an optional AI review, add the gemini-review label.
• I have necessary comments in my code, particularly in hard-to-understand areas.
• I have run end-to-end tests tests and provided workload links above if applicable.
• I have made or will make corresponding changes to the doc if needed, including adding new documentation pages to the relevant Table of Contents (toctree directive) as explained in our documentation.