Add unit tests for lib

**Description**
Currently store lacks proper analytics support.

**Proposed solution**
Add configurable analytics with sensible defaults.

**Priority**: Low/Medium

Start by locating the lib directory and the store implementation, then inspect any existing unit-test structure for related behavior. Clarify how analytics should be configured and what the sensible defaults are before adding coverage; done means the store supports the agreed configuration and its defaults are tested.

Written by the indexing model from the issue text.