Feat: Extend "current" import/export capability to support file as a startup argument.

[ivarconr]

Describe the feature request

Extend "current" import/export capability to support file as a startup argument.

Background

v6 drops support for old state-servive. The impact of this change is that we loose the file-based import as a startup argument. We want to add support for that in the current import/export service.

related to
#6306

Solution suggestions

No response