publish cli and add install scripts from the quickstart guide

scripts/install-cli.ps1

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+# CUA CLI Installation Script for Windows
+$ErrorActionPreference = "Stop"
+
+Write-Host "🚀 Installing CUA CLI..." -ForegroundColor Green
+
+# Check if bun is already installed
+try {
+    $bunVersion = bun --version 2>$null
+    Write-Host "✅ Bun is already installed (version $bunVersion)" -ForegroundColor Green
+} catch {
+    Write-Host "📦 Installing Bun..." -ForegroundColor Yellow
+    try {
+        powershell -c "irm bun.sh/install.ps1|iex"
+        
+        # Refresh environment variables
+        $env:Path = [System.Environment]::GetEnvironmentVariable("Path","Machine") + ";" + [System.Environment]::GetEnvironmentVariable("Path","User")
+        
+        # Add bun to PATH for this session if not already there
+        $bunPath = "$env:USERPROFILE\.bun\bin"
+        if ($env:Path -notlike "*$bunPath*") {
+            $env:Path = "$bunPath;$env:Path"
+        }
+    } catch {
+        Write-Host "❌ Failed to install Bun. Please install manually from https://bun.sh" -ForegroundColor Red
+        exit 1
+    }
+}
+
+# Verify bun installation
+try {
+    $bunVersion = bun --version 2>$null
+    Write-Host "✅ Bun verified (version $bunVersion)" -ForegroundColor Green
+} catch {
+    Write-Host "❌ Bun installation failed. Please install manually from https://bun.sh" -ForegroundColor Red
+    exit 1
+}
+
+Write-Host "📦 Installing CUA CLI..." -ForegroundColor Yellow
+try {
+    bun add -g @trycua/cli
+} catch {
+    Write-Host "❌ Failed to install CUA CLI with Bun. Trying with npm..." -ForegroundColor Yellow
+    try {
+        npm install -g @trycua/cli
+    } catch {
+        Write-Host "❌ Installation failed. Please ensure you have Node.js or Bun installed." -ForegroundColor Red
+        exit 1
+    }
+}
+
+# Verify installation
+try {
+    $cuaVersion = cua --version 2>$null
+    Write-Host "✅ CUA CLI installed successfully!" -ForegroundColor Green
+    Write-Host ""
+    Write-Host "🎉 Get started with:" -ForegroundColor Cyan
+    Write-Host "   cua auth login" -ForegroundColor White
+    Write-Host "   cua vm create --os linux --configuration small --region north-america" -ForegroundColor White
+    Write-Host ""
+    Write-Host "📚 For more help, visit: https://docs.cua.ai/libraries/cua-cli" -ForegroundColor Cyan
+} catch {
+    Write-Host "❌ Installation verification failed. Please try installing manually:" -ForegroundColor Red
+    Write-Host "   npm install -g @trycua/cli" -ForegroundColor White
+    exit 1
+}

scripts/install-cli.sh

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+#!/bin/bash
+set -e
+
+# CUA CLI Installation Script for macOS/Linux
+echo "🚀 Installing CUA CLI..."
+
+# Check if bun is already installed
+if command -v bun &> /dev/null; then
+    echo "✅ Bun is already installed"
+else
+    echo "📦 Installing Bun..."
+    curl -fsSL https://bun.sh/install | bash
+    
+    # Source the shell profile to make bun available
+    if [ -f "$HOME/.bashrc" ]; then
+        source "$HOME/.bashrc"
+    elif [ -f "$HOME/.zshrc" ]; then
+        source "$HOME/.zshrc"
+    fi
+    
+    # Add bun to PATH for this session
+    export PATH="$HOME/.bun/bin:$PATH"
+fi
+
+# Verify bun installation
+if ! command -v bun &> /dev/null; then
+    echo "❌ Failed to install Bun. Please install manually from https://bun.sh"
+    exit 1
+fi
+
+echo "📦 Installing CUA CLI..."
+bun add -g @trycua/cli
+
+# Verify installation
+if command -v cua &> /dev/null; then
+    echo "✅ CUA CLI installed successfully!"
+    echo ""
+    echo "🎉 Get started with:"
+    echo "   cua auth login"
+    echo "   cua vm create --os linux --configuration small --region north-america"
+    echo ""
+    echo "📚 For more help, visit: https://docs.cua.ai/libraries/cua-cli"
+else
+    echo "❌ Installation failed. Please try installing manually:"
+    echo "   npm install -g @trycua/cli"
+    exit 1
+fi