chore: Update commons.py

[fengju0213]

Description

Root cause

Synchronous functions wrapped by with_timeout use a new thread (thread + join) when a timeout is set.
If such functions call asyncio.create_task(...), the new thread has no running event loop, causing RuntimeError: no running event loop and downstream confusing errors.

Fix

In the sync branch of with_timeout, detect a running event loop via asyncio.get_running_loop().
If a loop is running, execute inline (no thread switch, no sync timeout) to preserve the asyncio context.
If no loop is running, keep the original behavior: spawn a thread and enforce timeout with join.

Checklist

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• I have read the CONTRIBUTION guide (required)
• I have linked this PR to an issue using the Development section on the right sidebar or by adding Fixes #issue-number in the PR description (required)
• I have checked if any dependencies need to be added or updated in pyproject.toml and uv lock
• I have updated the tests accordingly (required for a bug fix or a new feature)
• I have updated the documentation if needed:
• I have added examples if this is a new feature

If you are unsure about any of these, don't hesitate to ask. We are here to help!

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch enhance_with_timeout

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