feat: Implement a user-approved shell command execution tool and a Windows installer script.

installer.ps1

@@ -0,0 +1,39 @@
+$ErrorActionPreference = "Stop"
+
+Write-Host "Publishing project..."
+dotnet publish -c Release -r win-x64 -p:PublishSingleFile=true -o ./publish
+
+Write-Host "Finding binary..."
+$binary = Get-ChildItem -Path ./publish -Filter "anchor.exe" -File | Select-Object -First 1
+
+if (-not $binary) {
+    Write-Host "Error: Could not find anchor.exe in ./publish" -ForegroundColor Red
+    exit 1
+}
+
+Write-Host "Found binary: $($binary.FullName)"
+
+# Define the installation directory in the user's profile
+$installDir = Join-Path $env:USERPROFILE ".anchor\bin"
+
+if (-not (Test-Path $installDir)) {
+    Write-Host "Creating installation directory: $installDir"
+    New-Item -ItemType Directory -Path $installDir | Out-Null
+}
+
+Write-Host "Copying to $installDir..."
+Copy-Item -Path $binary.FullName -Destination $installDir -Force
+
+# Check if the installation directory is in the User PATH
+$userPath = [Environment]::GetEnvironmentVariable("PATH", "User")
+if ($userPath -split ';' -notcontains $installDir) {
+    Write-Host "Adding $installDir to User PATH..."
+    $newPath = if ($userPath) { "$userPath;$installDir" } else { $installDir }
+    [Environment]::SetEnvironmentVariable("PATH", $newPath, "User")
+    Write-Host "PATH updated. You may need to restart your terminal for changes to take effect." -ForegroundColor Yellow
+}
+else {
+    Write-Host "$installDir is already in the PATH."
+}
+
+Write-Host "Installation complete!" -ForegroundColor Green