Live finding (Network rejection events): the card asks the terminal for the
current date and time (PROVIDE LOCAL INFORMATION, qualifier 03) and our TR
answered "performed successfully" with no data. TS 102 223 6.4.15 says the
terminal shall return the current date and time, and the 6.8.0 TR structure
requires the Date-Time and Time zone object (8.39) for that qualifier.
- _pli_data_hex(qual): the TR Config dictionary entry wins; when it is empty
the date/time qualifier is answered from the host clock via _encode_scts
(the SMS timestamp builder, TP-SCTS coding).
- _build_tr and _DefaultProactiveHandler put the command-specific data objects
after the Result TLV per the 6.8.0 order (the POLL INTERVAL Duration echo
too; real terminal responses pin the order: 8103010300 02028281 030100
0402011E).
- _decode_tr decodes qualifier 03 with the same 8.39 coding (swapped
semi-octet BCD digits, time-zone sign bit 0x08, 'FF' = unknown); it read
plain decimal bytes and a 0x80 sign before.
- The PWA PLI dictionary codec for the date/time entry writes the same coding
(it wrote plain hex bytes and a 0x80 sign), and the TR Config panel notes
the empty-entry default. sw cache simple-v351.
Tests: builder vectors (east/west/unknown zone) + dictionary override + the
empty non-date/time qualifier + the object order (PLI and POLL INTERVAL) + the
handler path + the TR decode + a frontend codec round-trip test.
