Changes to the Ollama conversation and LLM helper to facilitate sane user defined LLM prompt and expose_entities

[josh-blake]

Breaking change

Changes exposed_entities “names” to “aliases”. Removes the join of aliases and areas from llm.py. Allow the user to join this if required in template, otherwise refer to it as a dict.

Proposed change

Removes the added LLM fluff from the prompt supplied to the LLM and instead restricts it to only what is user-supplied in the config-flow. Changes also adds exposed_entities via the LLM APIInstance object and allows for exposed_entities to be referenced in the prompt template. Enables Ollama prompt template parsing.

Type of change

• [ ] Dependency upgrade
• [X] Bugfix (non-breaking change which fixes an issue)
• [ ] New integration (thank you!)
• [X] 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 # 126109
• This PR is related to issue: 126109
• Link to documentation pull request:

Checklist

• [X] The code change is tested and works locally.
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• [X] Tests have been added to verify that the new code works.

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[home-assistant[bot]]

Hey there @synesthesiam, mind taking a look at this pull request as it has been labeled with an integration (ollama) you are listed as a code owner for? Thanks!

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[balloob]

If people don't want the LLM API prompt to be added, they can unselect allowing their LLM to access the API.