Reduce peering processing interval from 2 minutes to 30 seconds

The 2 minute interval was causing a noticeable delay before peerings
appeared in the database. Reducing to 30 seconds provides a better
user experience while still maintaining efficient batch processing.

internal/routewatch/peeringhandler.go

@@ -21,7 +21,7 @@ const (
 	pathExpirationTime = 30 * time.Minute
 
 	// peeringProcessInterval is how often to process AS paths into peerings
-	peeringProcessInterval = 2 * time.Minute
+	peeringProcessInterval = 30 * time.Second
 
 	// pathPruneInterval is how often to prune old AS paths
 	pathPruneInterval = 5 * time.Minute