Nozzle temperature not showing right value

[Escrich]

The nozzle temperature is not being shown, appearing always as zero, the value looks always as zero, but despite of this the value is controllable from knomi, if you set a temperature the machine shows it and start to heat, but knomi continues showing zero, all preheating or cooling functions are still working, the only problem is to display both values, current and setpoint,

[Escrich]

the system is being receiving an o, instead of an zero

        data.nozzle_actual = int16_t(json_parse["temperature"][knomi_config.moonraker_tool]["actual"].as<double>() + 0.5f);
        data.nozzle_target = int16_t(json_parse["temperature"][knomi_config.moonraker_tool]["target"].as<double>() + 0.5f);

knomi_config.moonraker_tool appears as "Toolo", instead of "Tool0"
this change works, but for a single nozzle, the multi nozzle option has been overriden:

        data.nozzle_actual = int16_t(json_parse["temperature"]["tool0"]["actual"].as<double>() + 0.5f);
        data.nozzle_target = int16_t(json_parse["temperature"]["tool0"]["target"].as<double>() + 0.5f);