refactor(greeter): Update auth flows and add configurable opts

- Finally fix debug info logs before dms greeter loads
- prevent greeter/lockscreen auth stalls with timeout recovery and unlock-state sync

core/cmd/dms/utils.go

@@ -7,14 +7,6 @@ import (
 	"strings"
 )
 
-func findCommandPath(cmd string) (string, error) {
-	path, err := exec.LookPath(cmd)
-	if err != nil {
-		return "", fmt.Errorf("command '%s' not found in PATH", cmd)
-	}
-	return path, nil
-}
-
 func isArchPackageInstalled(packageName string) bool {
 	cmd := exec.Command("pacman", "-Q", packageName)
 	err := cmd.Run()