Fix SQL query to use renamed asn column

Fixed remaining references to a.number that should be a.asn after
the column rename in the ASNs table.

internal/database/database.go

@@ -1183,7 +1183,7 @@ func (d *Database) GetASInfoForIPContext(ctx context.Context, ip string) (*ASInf
 		query := `
 			SELECT DISTINCT lr.prefix, lr.mask_length, lr.origin_asn, lr.last_updated, a.handle, a.description
 			FROM live_routes_v4 lr
-			LEFT JOIN asns a ON a.number = lr.origin_asn
+			LEFT JOIN asns a ON a.asn = lr.origin_asn
 			WHERE lr.ip_start <= ? AND lr.ip_end >= ?
 			ORDER BY lr.mask_length DESC
 			LIMIT 1
@@ -1220,7 +1220,7 @@ func (d *Database) GetASInfoForIPContext(ctx context.Context, ip string) (*ASInf
 	query := `
 		SELECT DISTINCT lr.prefix, lr.mask_length, lr.origin_asn, lr.last_updated, a.handle, a.description
 		FROM live_routes_v6 lr
-		LEFT JOIN asns a ON a.number = lr.origin_asn
+		LEFT JOIN asns a ON a.asn = lr.origin_asn
 		ORDER BY lr.mask_length DESC
 	`
 
@@ -1460,7 +1460,7 @@ func (d *Database) GetPrefixDetailsContext(ctx context.Context, prefix string) (
 		SELECT lr.origin_asn, lr.peer_ip, lr.as_path, lr.next_hop, lr.last_updated,
 			   a.handle, a.description
 		FROM %s lr
-		LEFT JOIN asns a ON a.number = lr.origin_asn
+		LEFT JOIN asns a ON a.asn = lr.origin_asn
 		WHERE lr.prefix = ?
 		ORDER BY lr.origin_asn, lr.peer_ip
 	`, tableName)