## Defined here

- `health` — <root>/code/repo/app/api.py:21

## Which code touches which table
- `api.py`: /health, /invoice, /invoice/{id} ↔ fastapi

## HTTP routes this codebase serves (3)
- GET /health  (api.py)
… 2 rows in this section do not mention these words

## Public surface of the code
- `app/api.py`: list_invoices, get_invoice, health
… 3 rows in this section do not mention these words