The attended license doesn’t allow automatic job execution, so the only way to do it (legally) is to execute either a script or a workflow on user log-in that will run “forever” and continuously monitor the folder.
You can make it a background workflow that can monitor a bunch of different triggers to spin off other jobs with Run Parallel Process.
To start a workflow on log-in, you have to automatically start Assistant (you can select that during installation) and set this on the process in Orchestrator:
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