Joins the bar dataset with one or more alpha parquet files on (symbol, date)
for a given symbol and date range. Standalone tools/alphaview.py wired as
`cli.py alphaview`, plus README docs.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
A standalone tools/pqcat.py (head/tail/columns/info) wired as `cli.py pqcat`
and runnable directly via a PATH symlink, plus README docs.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>