Set up docker-compose to replace the startup scripts

[sdankel]

Context

A quickstart script with an ephemeral setup (e.g. docker).
Ideally we want to be able to spin up dependencies for local development.

This would be:

• The database
• Potentially a database UI (pgadmin)
• Migration script(s) to perform migration on startup

Simply running docker compose up should run the relevant services - which local app should be able to connect with.
The .env and or .env.local file(s) should be used here for setting relevant env settings for the containers.

Background

• feat: Publish API #22 (comment)