Add Windows PowerShell examples in docs/cli.md

[Tarcroi]

Context

On Windows, PowerShell aliases curl to Invoke-WebRequest, which breaks the curl examples in the docs. Users need to use curl.exe instead. The README mentions this briefly but the CLI docs don't.

Proposal

In docs/cli.md, add PowerShell-compatible examples alongside the bash ones, or at minimum a note at the top:

Windows (PowerShell): use curl.exe instead of curl. For JSON bodies, use a file: curl.exe ... -d "@input.json"

Files to change

• docs/cli.md — add Windows/PowerShell notes to the Common Workflows section