wip: finalize implementation

config/services.yaml

@@ -17,6 +17,7 @@ services:
             $xmlDump: '@xml_dump.storage'
             $travelInfoBaseUrl: '%env(APP_TRAVEL_INFO_BASE_URL)%'
             $logger: '@monolog.logger.core'
+            $environment: '%kernel.environment%'
 
     # makes classes in src/ available to be used as services
     # this creates a service per class whose id is the fully-qualified class name