Example data included for package documentation and tests.

bruker_sample/
  One Bruker flex spectrum (sample 9) from the PXD058284 MALDI-TOF cohort.
  Source dataset: PRIDE project PXD058284
  https://www.ebi.ac.uk/pride/archive/projects/PXD058284

  Included as a minimal example only; not intended as a redistributable
  standalone dataset beyond this package context.
