The persisted User PATH only reaches newly-started processes, so the old
"restart your shell" advice was wrong — a sign-out/in was actually needed
(observed on Windows 11). Update the current session's $env:Path as well
so the command works right away in the same window, and reword the notice.
Also refresh the header: verified on ARM64 Windows 11 under Windows
PowerShell 5.1 and PowerShell 7.6 against the live v0.2.0 release.
claude@clouddev1
c0531aa048