Moisture barrier layer between clinker and terrace?

Since our little house is now built, we are giving some thought to the garden design.
The only things really planned are a paved terrace and a paved entrance and parking area.

You should definitely not place the fill soil or possibly the gravel/paving stones directly against the brick wall to avoid moisture problems.
What would be best for this?
As you can see in the picture, the basement was wrapped with bitumen coating and purple rigid insulation boards. Can the same bitumen coating also be applied to the brick wall up to the terrace door, or is there something better suited for that?

If you cross this out, the drainage/ventilation at the bottom will no longer work. I don’t want to be a pessimist, but it seems it was forgotten anyway.

If you cross that out, the drainage/ventilation at the base will no longer work.

If I interpret the picture correctly, there are no ventilation openings. I would probably just use a dimpled membrane.

I already wrote that too, the wall gets damp anyway, so it doesn't matter. Studded foil is still the best, with the studs facing the wall, so at least some air can get through.

I did write that too,

Those who can read clearly have the advantage... But core insulation without an air layer and ventilation is actually standard nowadays, and ventilation is dispensable. Therefore, I do not think the openings were forgotten.

Even without ventilation, the base must be designed so that water channels lead outward. However, this is not clearly visible in the photo.