When generating a ruleset from the card, capture EF.IMSI (6F07) and
EF.ICCID (2FE2) contents as a mask matching only the first 4 bytes
(e.g. 08290591??????????), the rest are '?' wildcards.
Add profilerMaskPrefix4 helper + PROFILER_MASK_PREFIX4_FIDS map + tests.
SW cache v44.