Document reassignable serial ports, pin roles, and e-stop during firmware updates - New Serial-Ports.md: the new Serial Ports config page (dome/drive serial link reassignment between the board's two hardware UARTs) - New Pins.md: the GPIO pin-role reassignment page, previously shipped but undocumented - Safety.md / Firmware-Update.md: document the new automatic e-stop broadcast during firmware flashing, and resume on completion/failure - Home.md / Web-Configuration.md: nav links for the two new pages

thePunderWoman committed Jul 26, 2026