jfjoch_broker: Default for plot generation is no binning

broker/JFJochBrokerHttp.cpp

@@ -563,7 +563,7 @@ void JFJochBrokerHttp::preview_plot_get(const std::optional<std::string> &type,
 
     PlotRequest req{
         .type = ConvertPlotType(type),
-        .binning = 0,
+        .binning = 1,
         .experimental_coord = experimentalCoord.value_or(false),
         .azint_unit = unit,
         .fill_value = fill

broker/jfjoch_api.yaml

@@ -37,6 +37,7 @@ components:
     binning:
       in: query
       name: binning
+      default: 1
       required: false
       schema:
         type: integer