Could not find any solid example or tutorial. But here is a thread is slightly related to what you're looking for.
https://stackoverflow.com/questions/856 ... with-cmake

USB_SERIAL_JTAG is primarily used for JTAG debugging and serial communication. It uses the built-in USB-to-serial/JTAG bridge. Communicates over a virtual COM port. USB_OTG supports the DFU class. It uses DFU utilities to upload firmware to the device. It uses the USB DFU protocol, which is a ...

You can use a 1.8V to 3.3V logic level shifter like the Texas Instruments SN74LV1T34/SN74LV1T34-Q1 Logic Level Shifter.

ESP-MDF (ESP-Mesh Development Framework) is the best fit for a network of 1000 street light nodes spaced 50-100 meters apart.

You can try this edited version of your code:
#include "esp_partition.h"
#include "esp_log.h"
#include "esp_ota_ops.h"
#include <stdlib.h>

#define TAG "example_main"

void copy_image_to_ota0() {
const esp_partition_t *storage_partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP ...

To manage different build configurations in an ESP-IDF CMake project, it's usually done via command-line options or scripting within CMakeLists.txt rather than through IDE-specific "build configurations.

1)It is possible to reflash non-encrypted firmware in development mode.
a)The ESP32-S3 can automatically use the key stored in the eFuses to encrypt the firmware when flashing via the UART bootloader.
b)The UART bootloader can also flash non-encrypted firmware directly into the flash memory.
2)you ...

You uploaded your code but it is not working. Are you sure there is no problem with your code itself? If you now try to upload a basic code like the LED blinking or so on, can you upload it without any problem?

I do not have any example of using the test.mosquitto.org. However, here is a tutorial on Sending Data to Cloud with ESP32 and ThingSpeak.
https://www.theengineeringprojects.com/2022/02/sending-data-to-cloud-with-esp32-and-thingspeak.html
ThingSpeak is an MQTT server. ThingSpeak updates various ...

ESP32-WROVER-B comes with a PCB antenna. ESP32-WROVER-IB has an external antenna connector. You have to select the later version.