julian
2a13b95da6
The poll-until-confident loop (prev commit) opened a race: during its ~8s window a subscriber could scan their card/QR at the reader and exit immediately — but the ANPR loop kept polling and would ALSO emit a confident read a moment later, exiting the NEXT open occurrence (a phantom double-exit, worst for a fleet sub with several open). Guard it with the subscriber's open-occurrence count: the bridge identifies the subscription as soon as a frame reads the bound plate (identity needs no confidence), baselines openOccurrenceCount, then each tick AND before emit checks if it moved. If a credential closed/opened an occurrence mid-poll, the subscriber already transacted → abort, don't emit. New public SubscriptionFlow.openOccurrenceCount(). Bounded loop is unchanged (ANPR_POLL_WINDOW_MS=8000 cap; never infinite). +1 test (credential transacts mid-poll → no double-act); 170 server tests green. Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V