Allow specifying model in env file

[mmurad2]

Issue description New users don't know which model the bee-stack is using. Ideally they should have the flexibility to specify which model to use as well as modify parameters.

Ideal solution

• Include model param in env file
• Document which model(s) and settings the bee-stack is optimized for and include a warning that switching models may deteriorate experience.

Related discussion: https://github.com/i-am-bee/internal/issues/2

[jezekra1]

The model is configurable through API :)

You can create bee a with a different model using the python SDK, just switch the model (depends on your LLM_BACKEND):

https://github.com/i-am-bee/bee-python-sdk/blob/main/examples/basic_usage.py#L18

Or use this curl (for bee-stack):

# env for stack
BEE_API=localhost:4000
BEE_API_KEY=sk-proj-testkey

curl -X POST \
  "${BEE_API}/v1/assistants" \
  -H "Authorization: Bearer ${BEE_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "meta-llama/llama-3-1-70b-instruct",
    "tools": [
      {
        "type": "code_interpreter"
      }
    ]
  }'

You can then edit your assistant in the UI.

IMO it would make sense to make this configuratble in the UI