SDK regeneration

[fern-api]

Automated SDK generation by Fern

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Action required: 1 file with unresolved customization conflicts

The new generation changed code you previously customized. Non-conflicting customizations have been applied automatically. The following files need manual resolution:

File	Your customization	Why it conflicted
pyproject.toml	Expose temperature parameter on TTS client (#486)	The new generation changed the same lines you edited

How to resolve

1. Check out this branch:

   git fetch origin && git checkout -b fern-bot/2026-06-15_20-50-02_692 origin/fern-bot/2026-06-15_20-50-02_692

   Or if you don't have the repo cloned:

   git clone https://github.com/HumeAI/hume-python-sdk.git && cd hume-python-sdk && git checkout -b fern-bot/2026-06-15_20-50-02_692 origin/fern-bot/2026-06-15_20-50-02_692

2. Run: fern replay resolve
3. Open the conflicting files in your editor — you'll see standard merge conflict markers
4. Resolve using your editor's merge tools (VS Code, IntelliJ, etc.)
5. Run: fern replay resolve again to finalize
6. Push your changes

Your resolved customizations will be remembered on future SDK generations.
If you merge this PR without resolving, your unresolved customizations will conflict again on the next generation.

[zgreathouse]

This PR also removes the Expression Measurement API from the SDK, in line with its sunset on 6/15/2026. This includes the expression_measurement modules, their tests, and the now-unused aiofiles dependency.