chore: import upstream snapshot with attribution

cli-tool/components/commands/setup/vercel-analytics.md

@@ -0,0 +1,66 @@
+---
+allowed-tools: Read, Write, Edit, Bash
+argument-hint:
+description: Set up Vercel Analytics and Speed Insights for React/Vite projects
+---
+
+# Vercel Analytics Setup
+
+Automatically configure Vercel Analytics and Speed Insights for your React/Vite project.
+
+**Usage:** `/vercel-analytics` (no arguments needed)
+
+**What it does:**
+- Installs @vercel/analytics and @vercel/speed-insights packages
+- Adds components to your React app
+- Configures SPA routing for Vercel deployment
+- Fixes 404 errors for direct route access
+
+**Process:**
+
+1. **Install Vercel Packages**
+   ```bash
+   npm install @vercel/analytics @vercel/speed-insights
+   ```
+
+2. **Detect Main App File**
+   - Search for main React entry point:
+     - `src/App.tsx` or `src/App.jsx`
+     - `src/main.tsx` or `src/main.jsx`
+   - Read file to determine current structure
+
+3. **Add Analytics Components**
+   - Import Analytics from '@vercel/analytics/react'
+   - Import SpeedInsights from '@vercel/speed-insights/react'
+   - Add both components to the main App component
+   - Use `/react` imports (not `/next`)
+
+4. **Create vercel.json Configuration**
+   - Create `vercel.json` in project root
+   - Add SPA rewrite rules:
+   ```json
+   {
+     "rewrites": [
+       { "source": "/(.*)", "destination": "/index.html" }
+     ]
+   }
+   ```
+   - This ensures all routes serve index.html (fixes 404s)
+
+5. **Verify Setup**
+   - Confirm components are properly imported
+   - Check vercel.json exists and is valid
+   - Display success message with next steps
+
+**Expected Outcome:**
+- ✅ Analytics tracking active
+- ✅ Speed Insights monitoring configured
+- ✅ SPA routing works correctly on Vercel
+- ✅ No 404 errors on direct route access
+
+**Next Steps:**
+1. Deploy to Vercel: `vercel deploy`
+2. View analytics at: https://vercel.com/dashboard/analytics
+3. Check Speed Insights: https://vercel.com/dashboard/speed-insights
+
+**Note**: Works with React, Vite, Create React App, and other SPA frameworks.