Use Nushell to generate an error via error make with a structured record containing fields foo: "foo" , msg…

Use Nushell to generate an error via error make with a structured record containing fields foo: "foo" , msg…: 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.