Bootstrap should use the same api as the extension system over having a custom json

Maybe having a custom json that encapsulates it.
Problem with current architecture is that each option that we want to use inside docker create will need to have a custom parser inside bootstrap.

We are currently using the docker api with extensions
https://docs.docker.com/engine/api/v1.41/#tag/Container/operation/ContainerCreate

Start by comparing the bootstrap custom JSON handling with the extension system and the Docker Engine ContainerCreate API linked in the issue. Identify which docker create options currently require bootstrap-specific parsers. Done means bootstrap and extensions use the same API shape without adding a custom parser for each option.

Written by the indexing model from the issue text.