feat: collect and display usage stats

cmd/server/main.go

@@ -11,6 +11,8 @@ import (
 	"github.com/pkg/errors"
 )
 
+var Version string = "unknown"
+
 func main() {
 	opts := rebound.DefaultOptions()
 
@@ -18,8 +20,12 @@ func main() {
 		log.Fatalf("[ERROR] %+v", errors.WithStack(err))
 	}
 
+	opts.HTTP.TemplateData.Version = Version
+
 	server := rebound.NewServer(
 		rebound.WithAddress(opts.Address),
+		rebound.WithStatsFile(opts.StatsFile),
+		rebound.WithStatsFileSaveInterval(opts.StatsFileSaveInterval),
 		rebound.WithSSHOption(
 			ssh.WithSockDir(opts.SSH.SockDir),
 			ssh.WithPublicHost(opts.SSH.PublicHost),