Discussion of proposed design for careteam work

Available for review, but please don't merge yet.
What do you think of the idea of providing only a full name:

```javascript
{
  "fullName": "Junior"
}
```

And the backend would generate a random username, and use empty password and email list:

```javascript
{
  "username": "fkghjfg01924581=",
  "password": "",
  "emails": []
  "fullName": "Junior"
}
```

(username will be changed to something "real" when the "data account" is upgraded to a "login account")