On Windows /cso looked for docker only in Git's directory and System32, so
Docker Desktop was never found and the gap read as 'not installed'. It now
resolves Program Files, Program Files (x86) and the Windows directory through
PowerShell's [Environment]::GetFolderPath (not the process environment),
checks each candidate's real path against those roots and rejects reparse
points. lib/cso/docker.ts admits only unix:/// endpoints, so a trusted
docker.exe reports 'native Windows Docker transport is not supported yet;
static assessment only'; one outside the roots is refused as outside the
trusted install locations, not overridable. Both carry an anchor. Native
named-pipe transport is not implemented.