v1.47.0

Added

• The device tells you how full it is before a printer stops connecting.
  Settings > Printers, and the Choose printers step at first start, show a
  Load bar with a percentage. Some printers take far more of the device's
  memory than others - a Bambu Lab or an Anycubic about ten times an Elegoo,
  a FlashForge or a Creality - so the limit is not a number of printers but how
  much they load it. A printer that would not fit is refused when you switch it
  on: the switch does not move, the bar turns red and says Not enough room.
  Switching a printer off always works. How it is counted, and every
  measurement behind it, is in docs/CONNECTION-BUDGET.md.

Changed

• The documentation says what the firmware does today. Elegoo and Anycubic
  were still listed as not implemented; both read slots on real printers. A
  Bambu Lab in cloud mode is now documented as read only, which it is. The
  firmware README no longer says nothing builds, and the web installer's page
  shows the manifest that is actually published.