Check for path overlaps (#12832)

Jellyfin.Server/Program.cs

@@ -77,6 +77,7 @@ namespace Jellyfin.Server
         {
             _startTimestamp = Stopwatch.GetTimestamp();
             ServerApplicationPaths appPaths = StartupHelpers.CreateApplicationPaths(options);
+            appPaths.MakeSanityCheckOrThrow();
 
             // $JELLYFIN_LOG_DIR needs to be set for the logger configuration manager
             Environment.SetEnvironmentVariable("JELLYFIN_LOG_DIR", appPaths.LogDirectoryPath);