Run Engine for Embedded Galaxy

[jmchilton]

• The requirements and acceptance criteria at https://github.com/jmchilton/galaxy-brain/blob/main/vault/projects/embedded_galaxy_in_planemo/PROBLEM_AND_GOAL.md
• The implementation I'm launching https://github.com/jmchilton/galaxy-brain/blob/main/vault/projects/embedded_galaxy_in_planemo/PLAN.md
• All research docs @ https://github.com/jmchilton/galaxy-brain/tree/main/vault/projects/embedded_galaxy_in_planemo

xref dicussions on #1555