update constructor of loaders to take a system id

src/loaders/ApiBasedShuttleRepositoryLoader.ts

@@ -15,10 +15,10 @@ export class ApiResponseError extends Error {
  * which inherit from `IEntityWithId`.
  */
 export class ApiBasedShuttleRepositoryLoader implements ShuttleRepositoryLoader {
-  systemId = "263";
   baseUrl = "https://passiogo.com/mapGetData.php";
 
   constructor(
+    public systemId: string,
     public repository: ShuttleGetterSetterRepository,
   ) {
   }

src/loaders/TimedApiBasedShuttleRepositoryLoader.ts

@@ -22,9 +22,10 @@ export class TimedApiBasedShuttleRepositoryLoader extends ApiBasedShuttleReposit
   readonly timeout = 10000;
 
   constructor(
+    public systemId: string,
     repository: ShuttleGetterSetterRepository,
   ) {
-    super(repository);
+    super(systemId, repository);
     this.startFetchDataAndUpdate = this.startFetchDataAndUpdate.bind(this);
   }