fix user permission issue

internal/zfs/service.go

@@ -27,8 +27,28 @@ func New() *Service {
 }
 
 // execCommand executes a shell command and returns output
+// For ZFS operations that require elevated privileges, it uses sudo
 func (s *Service) execCommand(name string, args ...string) (string, error) {
-	cmd := exec.Command(name, args...)
+	// Commands that require root privileges
+	privilegedCommands := []string{"zpool", "zfs"}
+	useSudo := false
+
+	for _, cmd := range privilegedCommands {
+		if strings.Contains(name, cmd) {
+			useSudo = true
+			break
+		}
+	}
+
+	var cmd *exec.Cmd
+	if useSudo {
+		// Use sudo for privileged commands
+		sudoArgs := append([]string{name}, args...)
+		cmd = exec.Command("sudo", sudoArgs...)
+	} else {
+		cmd = exec.Command(name, args...)
+	}
+
 	var stdout, stderr bytes.Buffer
 	cmd.Stdout = &stdout
 	cmd.Stderr = &stderr