Named from a live capture on an A5191: 0904 carried the nine UIDs the
account's own card list answers with, and 0908 arrived the moment a card
touched the reader, carrying its UID — and arrived without one when the
window closed empty. 0911 names the OCPP backend the charger is pointed
at. A UID is bytes, not a number, so type 0x04 now reads as hex.
With the frame log on, the command topic is subscribed too: the app's own
commands are the half no capture has seen.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>