Ollama hosting package should support multiple models

[aaronpowell]

Describe the bug

When you add the Ollama hosting package it allows you to specify a single model that you want Ollama to setup, but if you want to have multiple models (say chat and embeddings) then you have to create two hosting packages.

It would be better to work more like the Azure OpenAI where you can specify multiple deployments.

Regression

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Steps to reproduce

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Expected behavior

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Screenshots

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IDE and version

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IDE version

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Nuget packages

• CommunityToolkit.Aspire.Hosting.Azure.StaticWebApps
• CommunityToolkit.Aspire.Hosting.Java

Nuget package version(s)

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Additional context

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