feat(romm): enable Hasheous metadata

configs/nixos/modules/services/romm.nix

@@ -37,7 +37,10 @@ in
         database.createLocally = true;
         redis.createLocally = true;
         watcher.enable = true;
-        extraEnvironment.ROM_CONVERTO_ENABLED = "false";
+        extraEnvironment = {
+          HASHEOUS_API_ENABLED = "true";
+          ROM_CONVERTO_ENABLED = "false";
+        };
         inherit (cfg) environmentFile;
       };