Generate a security awareness training document at /app/training.md that contrasts the behavior of echo and…

Generate a security awareness training document at /app/training.md that contrasts the behavior of echo and…: a task in rts-1k-rootless-apptainer: RTS-1K: offline rootless Apptainer release (Harbor dataset). What the agent is asked, how it is graded, what it runs in, and its files.