SerialWifiInterface has no ESP32-specific code, so move it to helpers/wifi and reuse it on RP2040. Guard the ESP32-only WiFi event/auto-reconnect calls and poll link state on RP2040 instead.
SerialWifiInterface has no ESP32-specific code, so move it to helpers/wifi and reuse it on RP2040. Guard the ESP32-only WiFi event/auto-reconnect calls and poll link state on RP2040 instead.