Get printer status

What the 3D printer is doing right now: state (idle, heating, printing, paused, finished, cancelled, error, shutdown, offline), nozzle and bed temperatures with their targets, the current job (file, progress, layer, time elapsed and left, and what the time left is based on), and any problems the printer reports, each in the printer's own words with a plain-English hint for common ones. Relay headline as-is. Never invent a cause the printer did not report.

Finds the printer from OrcaSlicer's active printer profile (or ORCA_PRINTER_URL), so it needs no extra setup once the printer is connected in OrcaSlicer. Klipper (Moonraker) printers report the most; OctoPrint reports basic status. Read-only: it never sends commands to the printer.