Epic: Physical example prototype pipeline

Deliverables:
- Example pipeline using data from Kew
- Running through some code to produce some paper / figures
- Providing these as an output (images in a pandoc / paper)
- Ability to change the data injested to redo this

The issue names no files, tests, or entry points. Start by locating the existing pipeline and example-data structure, then determine how Kew data, figure generation, and pandoc output are currently handled. Done means a reproducible example can rerun with changed input data and produce the paper or figures described.

Written by the indexing model from the issue text.