🍱(dimail) embark dimail-api as container

[mjeammet]

Purpose

This PR is made to embark dimail-api's container, automatically fetched from their repository, up-to-date with their main branch, and running in "FAKE" mode. By using the real code, we ensure we are iso with their latest development, which will ease up interop development.

⚠️ The container we're using is currently built on our friends' main branch. We might want to rely on a more stable branch/keyword later.

⚠️ Our intention has shifted from earlier development. We first wanted to remove all mocks to use the real container directly in dev and tests. but then realized

• this means OUR tests are broken and we can't merge if dimail's tests break / change their responses
• we're rather see dimail as an external dependency. We don't need to test dimail's code when it's already tested on their part

Proposal

• add dimail container to docker configuration

For next PR

• write make command to create first admin user in dimail container (next
• document dimail use