Add configuration file support

i want to create a PR for a configuration file please lets discuss what you would prefer for name and that i will simply add all cli options to it this way done-serve gets a middelware like discussed in other issues.

No files or tests are named. Start by reviewing the existing CLI options and the other issues referenced in the discussion, then confirm the preferred configuration filename and the intended middleware scope. Done means the agreed configuration file supports all CLI options and integrates the discussed middleware.

Written by the indexing model from the issue text.