Add new maintenance task to deploy udc_webserver_settings.json to shopfloor
PCs that have UDC installed. Checks C:\Program Files\UDC before pushing the
config file, skipping PCs without UDC. Rename UpdateEMxInfo to
UpdateEMxAuthToken to better describe the task's purpose.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>