#include <ArduinoJson.h>
#include "../global_data/global_data.h"

// Refactored to pass by reference - no expensive copies on stack
void build_shunt_data_json(SensorData data, String& output);
void build_water_data_json(WaterData data, String& output);
void build_telemetry_json(DeviceTelemetry data, String& output);
void build_network_json(NetworkData wired, NetworkData wireless, String& output);
void build_ota_json(OTAStatus status, String& output);