refactor: improve ServiceManager initialization with cleaner API

- Split initializeServiceManager into two methods:
  * initializeServiceManager(): Simple method using default configuration
  * initializeServiceManagerWithServiceConfig(): Advanced method for custom config
- Simplify NewServiceCommand() to return *ServiceCommand without error
- Update all service command methods to use appropriate initialization:
  * Start: Uses initializeServiceManagerWithServiceConfig() for custom args
  * Stop/Restart/Reload/Status/Uninstall: Use simple initializeServiceManager()
- Remove direct access to sc.serviceManager.svc/prog in favor of lazy initialization
- Improve separation of concerns and reduce code duplication

cmd/cli/commands_service_reload.go

@@ -12,7 +12,11 @@ import (
 
 // Reload implements the logic from cmdReload.Run
 func (sc *ServiceCommand) Reload(cmd *cobra.Command, args []string) error {
-	status, err := sc.serviceManager.svc.Status()
+	s, _, err := sc.initializeServiceManager()
+	if err != nil {
+		return err
+	}
+	status, err := s.Status()
 	if errors.Is(err, service.ErrNotInstalled) {
 		mainLog.Load().Warn().Msg("service not installed")
 		return nil
@@ -37,7 +41,7 @@ func (sc *ServiceCommand) Reload(cmd *cobra.Command, args []string) error {
 	case http.StatusCreated:
 		mainLog.Load().Warn().Msg("Service was reloaded, but new config requires service restart.")
 		mainLog.Load().Warn().Msg("Restarting service")
-		if _, err := sc.serviceManager.svc.Status(); errors.Is(err, service.ErrNotInstalled) {
+		if _, err := s.Status(); errors.Is(err, service.ErrNotInstalled) {
 			mainLog.Load().Warn().Msg("Service not installed")
 			return nil
 		}