Add support for Fish Audio s2-pro model

[noambav]

Breaking change

Proposed change

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request: Add s2-pro model to Fish Audio TTS documentation home-assistant.io#44014
• Link to developer documentation pull request:
• Link to frontend pull request:

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[Copilot]

Pull request overview

This PR adds support for the Fish Audio s2-pro model to the Fish Audio TTS integration. It adds s2-pro as the first (and therefore default) backend model option, replacing s1 as the default for new TTS voice configurations.

Changes:

• Added "s2-pro" to the beginning of the BACKEND_MODELS list in const.py
• Updated the default backend model selection in the config flow schema from "s1" to "s2-pro"

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
homeassistant/components/fish_audio/const.py	Added "s2-pro" as the first entry in BACKEND_MODELS
homeassistant/components/fish_audio/config_flow.py	Updated default backend value from "s1" to "s2-pro" in get_model_selection_schema

[justanotherariel]

Actually, I just checked again, and are you sure that upgrading the model like this is enough? Shouldn't the library be bumped to 1.3.0 too?

https://github.com/fishaudio/fish-audio-python/releases

need clarification

[noambav]

I tested it on the 1.00 version and it worked (maybe there was a silent fallback).
But yea you are right we should bump it to 1.3.0 regardless but I am unable to test it right now to make sure nothing breaks if we do (though i highly doubt it will break).
It will take me a day or two to do that.

[justanotherariel]

Ok, if you say it works we can merge right now and you can create a follow up PR which bumps the version.