Type Alias WireFileMetadata

Snapshot of a wire file's contents, crystallized at create (CSV generation) by WireFileService. wireBatchIds / withdrawalIds name what the file carried; recordCount / totalAmount freeze the count and sum.

Everything here is frozen rather than joined because archiving a wire file nulls wire_batch.wire_file_id — a live join through the FK returns nothing for an archived file, so an unfrozen figure reads as zero exactly when the historical record matters. Same fields as ach_file.metadata, plus parts (wire files are split at 15 wires per CSV part; ACH writes one file).