Add configuration options for pagination

**Description**
Currently core lacks proper notifications support.

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

**Priority**: Low/Medium

The title asks for pagination options, while the description proposes configurable notifications, so clarify the intended scope before starting. No files, tests, or entry points are named; identify the relevant core configuration and notification areas, then define the defaults and the behavior that will demonstrate completion.

Written by the indexing model from the issue text.