Allow creating human users.

[GuiBibeau]

Currently, only assistants can be created and creating a human user is made from an helper script. Create an endpoint that allows registering users:

AC:

• create a POST endpoint at /users
• Restrict the endpoint to a bearer token.
• restrict who can create a user, validate permissions
• the endpoint should save that user in the database (neo4j)
• the endpoint attaches the right role and permissions to a user (redis)
• the endpoint returns an API key for that user

notes: have a look at existing endpoints and scripts as there are established patterns for this

[vimal20002]

Please assign this to me, I have dealt with these things a bunch of time.

[GuiBibeau]

@vimal20002 Feel free to submit a PR whenever you want! You can run the database locally with the docker compose files. We will have a contributor setup guiide coming in the next few days

[multipletwigs]

Hey @GuiBibeau I have a draft PR open up for this issue! It is here #24 though I do have some questions, that i'll ask soon!

[multipletwigs]

@GuiBibeau Do remember to close the issue, forgot to auto-close