Wrapped the decode_quoted_printable function in a try-except block to handle decoding errors gracefully. If decoding fails, a warning is logged and the original value is returned, improving robustness when processing malformed vCard data.
Replaces regex-based vCard parsing with dedicated functions for parsing lines, handling quoted-printable encoding, and extracting fields. Adds support for CHARSET and ENCODING parameters, improves handling of multi-line and encoded values, and centralizes vCard entry processing for better maintainability and accuracy.
Enrichment is now performed before message processing to ensure that all contacts are available, regardless of whether they exist in the ChatCollection.
