Pair Store is a lightweight Drupal module that allows you to store, retrieve,
and manage key-value pairs directly in your site configuration or runtime settings.
Easily add, edit, and manage internal notes on any entity using a clean, AJAX-powered modal form. Designed for admins and editors to track changes, comments, or decisions privately.
Here, write an introduction that summarizes the purpose and function of this project with a focus on users brand new to Drupal. Answer the question: What solution does this module provide?