All of my banking history is exported from Bank Of Scotland in CSV format, available in years in `raw/`. `./generate-bank-history` takes these CSVs, converts them to JSON, concatenates them into a single JSON blob, cleans them up, and writes the result to `./bank-history.json`. All scripts import `utils.jq`, which provides `bank-history.json` in the `all_data` variable, and utilities for querying it.