Rename all .txt files in the target directory to .json , but skip ignore.txt (it must remain .txt ).

Rename all .txt files in the target directory to .json , but skip ignore.txt (it must remain .txt ).: 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.