feat(variant): add kode dot ESP32-S3 board with QSPI LCD, SD and GPIO …

[LusimiCollado]

Add kode dot esp32-s3 board variant

Description of Change

This PR adds full support for the kode dot esp32-s3 board variant to the Arduino-ESP32 core:

• New variant directory variants/kodedot/ containing:
  • pins_arduino.h with pin mappings for the 2×10 header, QSPI-LCD, SD, I²C buses, buttons, NeoPixel, JTAG, USB power pins, etc.
  • kodedot_partitions.csv defining the custom flash layout (OTA, SPIFFS, app slots).
  • custom_ota_override.cpp to override the weak verifyRollbackLater() hook, forcing OTA images to remain un-validated until explicitly approved, thus protecting against faulty updates.
• Platform configuration in platform.txt:
  • Custom upload tool esptool_py_nomerge that writes firmware at the partition offset defined in kodedot_partitions.csv without manual flags.
• Documentation updated in:
  • boards.txt (board entry for KodeDot)
  • platform.txt (custom tool declaration)

With these additions, users can select kode dot, compile and upload their sketch (or OTA) directly into the correct partition, and rely on the custom_ota_override.cpp behavior to guard against bad firmware rolls.

Test scenarios

I have tested and debugged this PR on real kode dot hardware using:

• Arduino-ESP32 core v3.2.0
• macOS 14.5 with Arduino IDE 2.3.2 (custom tool)
• Examples run:
  • Blink / NeoPixel (LED_BUILTIN)
  • I²C scan (external header & internal sensor bus)
  • SPI to micro-SD (SPI2_HOST)
  • QSPI-LCD fill screen @40 MHz (SPI3_HOST)
  • Firmware upload lands at correct offset via esptool_py_nomerge
  • USB-Serial enumeration (VID/PID 0x303A:0x1001)
  • Button presses & JTAG debug
  • OTA update behavior: new images remain un-validated until manual confirmation, and rollback works as intended.

All tests passed, including OTA rollback verification.

Related links

• Website: https://kode.diy/es
• GitHub org: https://github.com/kodediy
• Issue: N/A
• Documentation updated: boards.txt, platform.txt

[github-actions]

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[P-R-O-C-H-Y]

Hi @LusimiCollado, please move your board definitions in boards.txt file to the end of the list as it's your 1st board there, and also replace comments to be in English. Thanks

[LusimiCollado]

Hi @P-R-O-C-H-Y, thanks for the review. I have change the board to be at the end, ensure all the need comments are in english and removed the not needed ones. Thanks for the review.

[LusimiCollado]

Hi, @P-R-O-C-H-Y i have change description of the last 3 commits in order to meet Contribution Guidelines. So i think the pre-commit check process have stop.
Sorry for the inconvenient.