There’s no mechanism to pass env / secrets into the agent container

[nickhuo]

inject api key like openai, anthropic, embedding model etc

User need to put their .env to global_controller.yaml, then ventis will:

1. copy this file as-is to the machine where is going to run the container
2. when starting the container, add --env-file <file path>, e.g. (every host will have one copy in the end)

if env_file_path:
    cmd.extend(["--env-file", env_file_path])

3. delete the copy that was pushed to the remote machine