Co-authored-by: Rhys Arkins <rhys@arkins.net>
Co-authored-by: Sebastian Poxhofer <secustor@users.noreply.github.com>
Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

* refactor: prepare esm helper

* chore: fix type name

Co-authored-by: Rhys Arkins <rhys@arkins.net>

* refactor(util/regex): Enable strict null checks

* Fix coverage

* Refactor guard checks

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

Co-authored-by: Rhys Arkins <rhys@arkins.net>

Co-authored-by: Rhys Arkins <rhys@arkins.net>

* chore: fix types

* fix more types

* chore: mote fixes

* fix frmat

* chore: fix tests

* chore: fix type

* chore: cleanup

* chore: cleanup

Co-authored-by: Rhys Arkins <rhys@arkins.net>

Use defined error constants throughout codebase.