Enhance 835 Import Logic to Identify Duplicates Using ISA13 and ST02 Segments

Introduce logic to cross-reference incoming 835 files for previously processed combinations of ISA13 and ST02. If a match is found, flag the file as a potential duplicate and prevent import, or generate a warning for user review.

This enhancement would help reduce the risk of duplicate claims being processed and provide an extra layer of validation for agencies working with multiple clearinghouses or payers.