- Introduced GeoIP configuration options in config.example.yaml to enable geolocation lookups for the /api/agg/unique-ips endpoint. - Updated the aggregate handler to include optional GeoIP data in responses, enriching unique IP information with country and city details, as well as ASN data if available. - Enhanced documentation in AGGREGATE.md and README.md to reflect the new GeoIP functionality and its usage. - Added a dependency on the geoip2-golang library in go.mod for GeoIP lookups. - Modified tests to accommodate the new GeoIP integration in the aggregate handler.