.Net Enhancement for Mistral: Make property safe_prompt optional

[MarcusKohnert]

Package used: Microsoft.SemanticKernel.Connectors.MistralAI
Version: 1.58.0-alpha

Context:

Mistral has a specific property safe_prompt in it's chat completions request schema.

I'm using an LLM serving service that is very restrictive and forbids non-standard properties in requests send to it. So when the request body contains a safe_prompt property the request is rejected with 400 Bad Request.

Enhancement:

Would it be possible to make safe_prompt nullable to make it configurable for clients and enable them to not send the property. I've prepared a commit here.

safe_prompt defaults to false anyways. So if it is not send in the request body, it default to false on the server side.

I would be then able to exclude the property from a request like this:

executionSettings: new MistralAIPromptExecutionSettings
{
    SafePrompt = null
});

Thank you

[markwallace-microsoft]

@MarcusKohnert The proposed change looks good, can you create a PR with this change?

[MarcusKohnert]

PR requested #12631

[MarcusKohnert]

Released in https://github.com/microsoft/semantic-kernel/releases/tag/dotnet-1.59.0

Thank you!