Start the existing Node.js server in /app locally, probe its HTTP endpoint, save the response to…

Start the existing Node.js server in /app locally, probe its HTTP endpoint, save the response to…: 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.