Summary:
This adds endpoints that allow the support user to remove unlisted
snapshots for a document, and to remove all action history for
a document.
This does increase what the support user can do, but not in a way
that would be particularly valuable to attack. It would have some
destructive value, for removing history (removing unlisted
snapshots doesn't impact the user, by contrast).
This would simplify some maintenance operations.
Test Plan: added test for snapshots; tested states manually
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2699
Summary: This removes some old metric code. There's also a user preference dialog that has a single option (whether to allow metrics) this is left in place with a dummy option. It could be ripped out as well, probably.
Test Plan: existing tests pass
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2622
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
