cluster: group default option factories

Signed-off-by: Alejandro Mery <amery@jpi.io>

pkg/cluster/cluster_scan_options.go

@@ -6,7 +6,6 @@ import (
 
 	"darvaza.org/resolver"
 	"darvaza.org/slog"
-	"darvaza.org/slog/handlers/discard"
 	"github.com/hack-pad/hackpadfs/os"
 )
 
@@ -65,7 +64,7 @@ func WithResolver(h resolver.Resolver) ScanOption {
 func WithLogger(log slog.Logger) ScanOption {
 	return func(m *Cluster, opt *ScanOptions) error {
 		if log == nil {
-			log = discard.New()
+			log = DefaultLogger()
 		}
 
 		opt.Logger = log
@@ -76,7 +75,7 @@ func WithLogger(log slog.Logger) ScanOption {
 
 func (m *Cluster) setDefaults(opt *ScanOptions) error {
 	if m.resolver == nil {
-		h := resolver.NewCloudflareLookuper()
+		h := DefaultLookuper()
 
 		if err := WithLookuper(h)(m, opt); err != nil {
 			return err