Split scheduled jobs so the working open-data fetch can run without the credential-less FTP/Harmonie jobs crash-looping the app

.env-sample

@@ -6,6 +6,11 @@ POSTGRES_HOST=postgres
 APP_BIND_ADDRESS=127.0.0.1
 APP_PORT=9090
 ENABLE_SCHEDULED_JOBS=true
+# Gates the FTP station fetch and DMI Harmonie fetch specifically, separately
+# from ENABLE_SCHEDULED_JOBS, since both require real credentials below.
+# Leave false until those are real; both jobs throw on placeholder values,
+# and would otherwise crash-loop the whole app rather than just fail quietly.
+ENABLE_LEGACY_PROVIDER_JOBS=false
 
 METEO_USER=aaa
 METEO_PASSWORD=aaa

src/main/scala/Main.scala

@@ -55,11 +55,25 @@ object Main extends IOApp {
       server <- Server.of(postgresService, dataService, fetchLvgmcService, warningService)
       serverTask = server.run
 
-      scheduledTasks =
+      // Split from the legacy provider jobs below: parMapN cancels and fails
+      // every branch the moment any one of them throws, and the FTP/Harmonie
+      // paths currently point at placeholder credentials that always throw
+      // on first use. Without this split, enabling scheduled jobs at all
+      // would crash-loop the whole app (server included) roughly every few
+      // minutes rather than just start the real, working open-data fetch.
+      safeTasks =
         if (sys.env.get("ENABLE_SCHEDULED_JOBS").exists(_.equalsIgnoreCase("false")))
           IO.never[Unit]
         else
-          (fetchStationsTask, fetchOpenDataStationsTask, cleanupTask, fetchGribTask).parMapN((_, _, _, _) => ())
+          (fetchOpenDataStationsTask, cleanupTask).parMapN((_, _) => ())
+
+      legacyProviderTasks =
+        if (sys.env.get("ENABLE_LEGACY_PROVIDER_JOBS").exists(_.equalsIgnoreCase("true")))
+          (fetchStationsTask, fetchGribTask).parMapN((_, _) => ())
+        else
+          IO.never[Unit]
+
+      scheduledTasks = (safeTasks, legacyProviderTasks).parMapN((_, _) => ())
 
       exitCode <- (serverTask, scheduledTasks).parMapN((_, _) => ExitCode.Success)
     } yield exitCode