feat: make v7 UUID values instead of v1

this is thanks to the presentation at
https://www.youtube.com/watch?v=n9Cxs0sTqEY

the basic rationale is that:

- v1 UUID is "less private" in that MAC address can be deduced
- v7 UUID has "better index performance" per sortable prefix

we also need to store these as true UUID data type in postgres, but
that will be a separate effort..

pyproject.toml

@@ -32,6 +32,7 @@ dependencies = [
         "progress",
         "python-configuration",
         "typer",
+        "uuid7",
 ]