* don't run the Stalwart container in recovery mode first, just run it
in "proper" mode, import the configuration and use it like that,
which only requires skipping the "destroy" steps
* add code documentation and logging
* replace the text templating of the Stalwart snapshot by doing the
same as the formatting script was doing, but directly in Go, removing
an additional step to perform when modifying a Stalwart
configuration to use in the integration tests
3a0139eaa1