Design for improvements to passing import config between modules

It's very verbose to have to redeclare the `import` statement in every file and manually pass parameters down for configuration.

The issue names no files, tests, or entry points; start by mapping how import statements and configuration parameters are passed between modules in the service-side implementation. Done would require an agreed design for reducing repeated imports and manual parameter passing, followed by implementation scope and validation criteria.

Written by the indexing model from the issue text.