Log Trigger Source and Time for Cron Execution

[mkduew]

First of all, thank you for the great WP Crontrol plugin!

I have a feature request: Would it be possible to add logging for when and where the trigger to execute WordPress cron jobs comes from? Usually, the trigger is a visit to the WordPress site, but many users (including us) run wp-cron.php via a system cron job or other mechanisms.

It would be very helpful if the plugin could log when the cron trigger was fired and whether it was initiated by a site visit, an external cron job, or another method. This would make it much easier to analyze if and how reliably cron jobs are being triggered.

This would also help especially in setups where define('DISABLE_WP_CRON', true); is configured, to verify that wp-cron.php is actually being called correctly by the system cron jobs.

Thank you very much!