Summary:
This adds a `user:delete` target to the `cli.sh` tool. The desired user will be deleted from our database, from sendgrid, and from cognito.
There is code for scrubbing the user from team sites, but it isn't yet activated, I'm leaving finalizing and writing tests for it for follow-up.
Test Plan: tested manually
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3043
Summary: This moves enough server material into core to run a home server. The data engine is not yet incorporated (though in manual testing it works when ported).
Test Plan: existing tests pass
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2552