OpenTag Station v1.0.1-beta.3

PRE-RELEASE. Not for general use. This build is for testing and may lose data or
need a USB reflash to recover. It is not offered by the USB installer. If you want a
working station, install the latest stable release instead.

To test it anyway, upload opentag-station-1.0.1-beta.3-application.bin in the station's
web page under Settings → Update. Back up your settings first.

Pre-release for testers. Reliability fixes for rare cases; nothing changes in normal use.

• Settings survive a power cut during recovery. If the main settings file was damaged and the
  station restored them from its backup, saving the restored copy replaced the only good backup
  first. A power cut at that moment lost the settings. Recovery now writes the main file and
  leaves the backup alone.
• Clearing a tag works when Spoolman holds the spool's UUID in capitals. The tag carries the
  UUID in lower case, so the station refused to unlink with "Owner instance UUID changed". UUIDs
  are compared without regard to case. A genuinely different UUID is still refused.
• A zero empty-spool weight on the spool no longer hides the filament's or vendor's weight.
  The tag now gets the first weight above 0 (spool, then filament, then vendor). A 0 is written
  only when nothing is above 0, as before.
• A wrong value in Spoolman now names the field. A weight, density or name that is negative or
  the wrong type used to report "does not fit this tag". It now says which Spoolman field to
  correct. "Does not fit this tag" remains for real lack of space.
• A flaky NFC reader no longer floods the browser. Each NFC bus error triggered a refresh. The
  count is still in the NFC data; it just no longer pushes updates.

Not in this release: refusing writes and weight saves while a restart is pending (needs a station
to test), and the screenshot-related items from the 1.1 cleanup list.