…der for llamafiles. Currently it just extends OpenAIProvider and only overrides methods that are necessary to get the system to work at a basic level.

Update ModelProviderName schema and config/configurator so that app startup using this provider is handled correctly.
Add 'mistral-7b-instruct-v0' to OpenAIModelName/OPEN_AI_CHAT_MODELS registries.

…-Instruct chat template, which supports the 'user' & 'assistant' roles but does not support the 'system' role.

…kens`, and `get_tokenizer` from classmethods so I can override them in LlamafileProvide (and so I can access instance instance attributes from inside them). Implement class `LlamafileTokenizer` that calls the llamafile server's `/tokenize` API endpoint.

…tes on the integration; add helper scripts for downloading/running a llamafile + example env file.

…gs for reproducibility

…ange serve.sh to use model's full context size (this does not seem to cause OOM errors, surpisingly).

…vider`, `GroqProvider` and `LlamafileProvider`

and rebase the latter three on `BaseOpenAIProvider`

…rve.py