- Add poll message decoding for iOS (ZMESSAGETYPE 46) using raw protobuf
parsing of ZWAMESSAGEINFO.ZRECEIPTINFO blobs (no external dependency).
Polls render with vote tallies and voter names in the HTML export.
- Fix iOS contact name resolution: pull ZFULLNAME from address book,
resolve LID-based group members, fall back to ZWAPROFILEPUSHNAME,
and avoid overwriting real names with phone numbers.
- Fix typo: 'expoter' -> 'exporter' in android_crypt.py and __main__.py.
- Add poll field to Message data model and update test fixtures.
