Add Windows PowerShell installer script

[butschster]

Adds a native Windows installer script (download-latest.ps1)Default installation to %LOCALAPPDATA%\ctx (e.g., C:\Users\YourName\AppData\Local\ctx) ✅ Added -CurrentDir switch to install to current directory when needed ✅ Smart PATH handling:

• Default location → Adds to PATH automatically
• Current directory → Does NOT add to PATH (unless -AddToPath specified)
• Custom path → Adds to PATH automatically (unless -AddToPath:$false specified)

Usage Examples

# Install to %LOCALAPPDATA%\ctx and add to PATH (NEW DEFAULT)
.\download-latest.ps1

# Install to current directory without PATH
.\download-latest.ps1 -CurrentDir

# Install to current directory WITH PATH
.\download-latest.ps1 -CurrentDir -AddToPath

# Install to custom location with PATH
.\download-latest.ps1 -Path "C:\Tools\ctx"

# Install to custom location WITHOUT PATH
.\download-latest.ps1 -Path "C:\Tools\ctx" -AddToPath:$false

powershell -c "& ([ScriptBlock]::Create((irm 'https://raw.githubusercontent.com/context-hub/generator/main/download-latest.ps1'))) -AddToPath"

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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