Add RCC6 headless BLE, USB, and Web companions

[n30nex]

Summary

• add dedicated screenless RCC6 BLE, native USB/serial, and Wi-Fi Web/TCP companion targets
• use fixed BLE PIN 123456, fail-closed storage mounting, and no TFT/framebuffer code
• print headless Web setup credentials and LAN IP over the USB console
• add exact Actions builds, recovery images, docs, and a TFT Ultimate regression build

Local checks

• python scripts/verify_rcc6_headless.py
• workflow YAML parse
• git diff --check

[qodo-code-review]

Qodo reviews are paused for this user.

Troubleshooting steps vary by plan Learn more →

On a Teams plan?
Reviews resume once this user has a paid seat and their Git account is linked in Qodo.
Link Git account →

Using GitHub Enterprise Server, GitLab Self-Managed, or Bitbucket Data Center?
These require an Enterprise plan - Contact us
Contact us →