Set up a shell function in /app/warn.sh that hooks into Bash's PROMPT COMMAND to warn users when they…

Set up a shell function in /app/warn.sh that hooks into Bash's PROMPT COMMAND to warn users when they…: 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.