fx download-baseline

Usage: fx download-baseline [-n <count>] <builder_name> <out_dir>

Fetches a list of sample builds for a given builder and iterates through
the last <n> builds to find the most recent success.
It then downloads the performance artifacts for that build into <out_dir>.

Arguments:
  builder_name  The name of the builder to filter by (e.g., terminal.x64-release).
  out_dir       The directory to save the downloaded CAS contents into.

Options:
  -n <count>    The number of builds to check (default: 5).