Update Gemini model configurations

Updated model configurations to include new Gemini versions and removed outdated ones.

fix interface handling with generic model

make ollama auth optional

move api endpoint init to AbstractModel

This should finally solve the chicken-egg issue. This also renames the
ollama url parameter from baseurl to apiurl and sets a sensible default

fix groq test and temperature issue

fixes based on tests, improve tests

refactor HTTP Client initialization

allow models to have a zero token limit

This allows for configuring completely unknown models. For these models
no token limit is known and we will simply do not apply any. Instead we
trust that the

allow models to have a zero token limit

This allows for configuring completely unknown models. For these models
no token limit is known and we will simply do not apply any. Instead we
trust that the model will be either large enough to handle our input or
at least throw useful error messages.

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fix model full name

introduce a "Generic" model

This is basically an OpenAI implementation, which then can be reused by
most other providers since they usually implement a somewhat compatible
API. The API URL can be se

introduce a "Generic" model

This is basically an OpenAI implementation, which then can be reused by
most other providers since they usually implement a somewhat compatible
API. The API URL can be set manually so it should be easy to add new
unsupported providers.

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rewrite roles for Gemini

Gemini expects the role model instead of assistant. Older models allowed
both, the newer ones not.

updated model data

add remote component to ask questions to the bot

The endpoint allows to override model and language settings on demand.

Adjust OpenAI API calls. fixes #34

* max_token has been replaced by max_completion_tokens
* temperature setting is not suported by reasoning models

ollama: remove thinking part from deepseek answers

ollama: fix embed endpoint and error in model file

We expect /api to be part of the configured base URL so it should not
be part of the call itself.

Update EmbeddingModel.php to remove the :lastest suffix

Update models.json with new llama3.3 70b

Update EmbeddingModel.php for new Ollama API

Update models.json

Remove deprecated Groq models

some model updates

still not 100% uptodate

allow to set arbitrary models

We now initialize a model configuration even if we have no info in
model.json using some default values for the token limits.

Models can implement the loadUnkonwModelI

allow to set arbitrary models

We now initialize a model configuration even if we have no info in
model.json using some default values for the token limits.

Models can implement the loadUnkonwModelInfo() method to fetch the info
from an API if such a thing exist. Implemented for gemini and ollama
currently.

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added bge-large embedding model for ollama

updated Ollama models

I only added a couple of popular ones. It's hard to find the context and
dimension limits.