Input files referenced by the bundled example spec (walkthrough.specs.mjs):
cap_table.png— a synthetic portfolio/cap-table image (generated bymake_cap_table.py, needs Python + Pillow) — uploaded in the "Card → Rows" step.memo.md— a short investment memo — ingested in the "Document Brain" step.
Replace these with your own fixtures (or remove the steps that use them) when you
adapt walkthrough.specs.mjs to your app.