### What?
Updated `docker-compose.yml` to use `Postgres` by default, with
`MongoDB` commented out in the templates that are by default using the
postgres adapter.
Fixes#11322
Having the `scripts` dir re-use all packages from the top-level was
getting quite unwieldy. Created new `tools` directory that is part of
the workspace. Packages are exported with the `@tools` package
namespace.