iOS: Add poll support, fix contact name resolution, fix typos

- 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.

Whatsapp_Chat_Exporter/__main__.py

@@ -578,6 +578,13 @@ def process_messages(args, data: ChatCollection) -> None:
             filter_chat, args.filter_empty
         )
 
+        # Process polls (iOS only)
+        if args.ios:
+            message_handler.polls(
+                db, data, args.filter_date,
+                filter_chat, args.filter_empty
+            )
+
         # Process calls
         process_calls(args, db, data, filter_chat, timing)
 
@@ -747,7 +754,7 @@ def setup_logging(level):
     
     if level == logging.DEBUG:
         timestamp = datetime.now().strftime("%Y%m%d-%H%M%S")
-        log_handler_file = logging.FileHandler(f"wtsexpoter-debug-{timestamp}.log", mode="w")
+        log_handler_file = logging.FileHandler(f"wtsexporter-debug-{timestamp}.log", mode="w")
         log_handler_file.terminator = ""
         log_handler_file.addFilter(ClearLineFilter())
         handlers.append(log_handler_file)