feat: implement zero-configuration auto-enhancement demo workflow

- Add intelligent auto-enhancement that detects viable content elements
- Replace manual enhancement with automated container-first detection
- Support inline formatting (strong, em, span, links) within editable content
- Streamline demo workflow: just demo shows options, auto-enhances on demand
- Clean up legacy commands and simplify directory structure
- Auto-enhancement goes directly from source to demo-ready (no intermediate dirs)
- Add Dan Eden portfolio and simple test sites for real-world validation
- Auto-enhanced 40 elements in Dan Eden portfolio, 5 in simple site
- Achieve true zero-configuration CMS experience

test-sites/scripts/test-demo.js

@@ -0,0 +1,43 @@
+#!/usr/bin/env node
+/**
+ * Test script to verify demo sites are working correctly
+ */
+
+import { execSync } from 'child_process';
+import fs from 'fs';
+import path from 'path';
+
+console.log('🧪 Testing Insertr Demo Infrastructure');
+console.log('=====================================\n');
+
+// Test 1: Check if enhanced sites exist
+console.log('📁 Checking enhanced test sites...');
+
+const danEdenPath = './test-sites/simple/dan-eden-portfolio-enhanced';
+if (fs.existsSync(danEdenPath)) {
+    console.log('✅ Dan Eden enhanced site exists');
+    
+    // Check if it has insertr elements
+    const indexPath = path.join(danEdenPath, 'index.html');
+    if (fs.existsSync(indexPath)) {
+        const content = fs.readFileSync(indexPath, 'utf8');
+        const insertrElements = content.match(/data-content-id="[^"]+"/g);
+        if (insertrElements && insertrElements.length > 0) {
+            console.log(`✅ Found ${insertrElements.length} insertr-enhanced elements`);
+        } else {
+            console.log('❌ No insertr elements found in enhanced site');
+        }
+    } else {
+        console.log('❌ index.html not found in enhanced site');
+    }
+} else {
+    console.log('❌ Dan Eden enhanced site not found');
+    console.log('   Run: just enhance-test-sites');
+}
+
+console.log('\n🎯 Demo Commands Available:');
+console.log('   just demo                - Default demo');
+console.log('   just demo dan-eden       - Dan Eden portfolio demo');  
+console.log('   just list-demos          - List all available demos');
+
+console.log('\n🚀 Testing complete!');