- ccaPreAuthProcessor: keep claim status as PREAUTH after successful
submission instead of jumping straight to APPROVED, matching the
Tufts SCO/UnitedDH/MassHealth preauth flows; also tag PNG fallback
screenshots with image/png instead of the default application/pdf
so they render in the Documents preview modal.
- claims-recent-table: add a PREAUTH status case so it displays as
"Submitted" instead of falling through to the raw enum value.