Add support for the Waveshare ESP32-S3-Zero N8R8 board

[WestYao666]

Description

Add support for the Waveshare ESP32-S3-Zero N8R8 board in the ESP-Claw board manager.

This PR introduces a new board definition for waveshare_esp32_s3_zero_n8r8, covering the board metadata, device declarations, peripheral layout, board-specific SDK defaults, and generated device include setup.

The board is based on the ESP32-S3-PICO-1-N8R8 module, with 8 MB flash and 8 MB Octal PSRAM. The configuration enables the native USB Serial/JTAG console over the USB-C connector and uses the 8 MB partition table.

Main changes:

• Add Waveshare ESP32-S3-Zero N8R8 board metadata.
• Configure board defaults for ESP32-S3, 8 MB QIO flash, 8 MB Octal PSRAM, and USB Serial/JTAG console.
• Declare onboard devices:
  • WS2812 RGB LED on GPIO21.
  • BOOT button on GPIO0.
  • UART0 header pins on GPIO43/GPIO44.
  • Native USB D-/D+ pins on GPIO19/GPIO20.
• Leave peripherals empty because this board has no fixed I2C, SPI, audio, display, or storage wiring.
• Add setup_device.c with board manager includes for generated device support.

The onboard WS2812 LED is marked init_skip: true, so Board Manager does not take ownership of it during boot. Lua scripts or custom application code can initialize and control it on demand.

Testing

It runs normally on the ESP32-S3-Zero N8R8 development board and can successfully call LLM.

Suggested validation command:

cd application/edge_agent
idf.py bmgr -c ./boards -b waveshare_esp32_s3_zero_n8r8
idf.py menuconfig
idf.py build
idf.py flash monitor

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Checklist

Before submitting a Pull Request, please ensure the following:

• 🚨 This PR does not introduce breaking changes.
• All CI checks (GH Actions) pass.
• Documentation is updated as needed.
• Tests are updated or added as necessary.
• Code is well-commented, especially in complex areas.
• Git history is clean — commits are squashed to the minimum necessary.