Send notice for missing files on unapproved check requests

Unapproved check requests without a compliance file stall payments and force billing follow-up. Notifying agents immediately speeds remediation so payments proceed before the next payment run.

Overview

Stalled check requests force billing teams into manual chase and delay payments; this flow converts new unapproved records into immediate, templated reminders to the responsible agent. That reduces follow-up time and helps ensure files arrive before the next payment run.