Please review

AfterConstraint.php

return $schedule->isOnce() ? $schedule->timestamp_target->diffInHours(now()->floorSeconds()) === $schedule->delay_minutes : $schedule->timestamp_target->diffInHours(now()->floorSeconds()) > $schedule->delay_minutes;

Should be like this

return $schedule->isOnce() ? $schedule->timestamp_target->diffInMinutes(now()) >= $schedule->delay_minutes && is_null($schedule->completed_at) : $schedule->timestamp_target->diffInMinutes(now()) > $schedule->delay_minutes;
on line 46 to 48