Refactor lib for better readability

**Description**
Currently routes lacks proper pagination support.

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

**Priority**: Low/Medium

No files or tests are named. Start by locating the route handling and existing list-response entry points, then trace how configuration is loaded. Define done as configurable pagination with sensible defaults working for routes and covered by the relevant existing checks.

Written by the indexing model from the issue text.