Mirror the notifications list paging pattern (offset/limit, fetch one
extra row to detect the next page, First/Prev/Next controls) across the
devices DB query, REST endpoint, API client and UI. Also add a First
page button to the notifications pagination row.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
HomeScreen is now a StatelessWidget responsible only for the responsive
layout structure. All notification state, pagination, filtering, and
mark-as-read logic lives in the new NotificationsList widget.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
