Enhanced filtering and sorting for Sessions and Events API

AI Impact Summary

The platform adds server-side filtering controls for Sessions and Events: sessions can be filtered by status, and events by type and creation time. This enables precise segmentation of user journeys and operational event streams, improving query performance for dashboards and reports as clients can push filters instead of retrieving full datasets. To maximize value, ensure backend indexes exist on session.status, event.type, and event.created_at, and consider updating SDKs to surface the new filter parameters in queries and UI components. This change reduces time-to-insight for analysts and operators and supports more accurate audits and alerting workflows.