submitCash.php had no task creation — cash orders were invisible to KDS.
submit.php also lacked it (tab orders never hit webhook.php).
Both now create "Prepare Order #X for Table" task at StatusID=1.
submit.php includes duplicate guard since webhook.php also creates tasks
for card payments.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>