NAPAfrica and ZANOG add Cape Town cache cluster

This gives South African traffic a local cache and compute point at Teraco CT2, which should reduce how often content delivery has to leave the region. The partnership also shows NAPAfrica and ZANOG using shared infrastructure to keep more internet traffic inside South Africa rather than relying on external paths. For streaming and other bandwidth-heavy services, the key signal to watch is whether additional community cache capacity is added at Teraco CT2 or other South African sites.