Write two KSQL stream‑stream join queries and save them to /app/result.txt .

Write two KSQL stream‑stream join queries and save them to /app/result.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.