Both wrappers previously silently treated --help as a SQL comment and
returned empty result JSON. They now intercept --help/-h before
delegating to the Python connector and print proper usage text with
the correct JSON key names (affected_rows, not rows_affected).
ticket, sprint, and decision already supported --help — no change.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>