Refactor config for better readability

**Feature request**
It would be great to have analytics for handlers.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_analytics` with default `false`.

The issue names no files, tests, or entry points, so start by locating the configuration and handler code in this Shell repository. Clarify what handler analytics should report, then verify that enable_analytics defaults to false and that the requested analytics behavior is available for production deployments.

Written by the indexing model from the issue text.