Add Node.js implementation with enhanced search capabilities

- Implement complete Express.js server with SQLite FTS5 search
- Add modern responsive UI with dark/light themes
- Enhance search with partial word matching and advanced filters
- Add RESTful API with comprehensive endpoints
- Include security features (Helmet.js, rate limiting, CORS)
- Add performance optimizations (gzip, caching, WAL mode)
- Provide comprehensive documentation and setup scripts
- Maintain feature parity with Python implementation while adding enhancements

start-nodejs.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# 🚀 N8N Workflow Documentation - Node.js Launcher
+# Quick setup and launch script
+
+echo "🚀 N8N Workflow Documentation - Node.js Implementation"
+echo "======================================================"
+
+# Check if Node.js is available
+if ! command -v node &> /dev/null; then
+    echo "❌ Node.js is not installed. Please install Node.js 19+ first."
+    exit 1
+fi
+
+# Check Node.js version
+NODE_VERSION=$(node --version)
+echo "📦 Node.js version: $NODE_VERSION"
+
+# Install dependencies if node_modules doesn't exist
+if [ ! -d "node_modules" ]; then
+    echo "📦 Installing dependencies..."
+    npm install
+fi
+
+# Initialize database if it doesn't exist
+if [ ! -f "database/workflows.db" ]; then
+    echo "🔄 Initializing database..."
+    npm run init
+fi
+
+# Check if workflows directory has files
+WORKFLOW_COUNT=$(find workflows -name "*.json" -type f | wc -l)
+echo "📁 Found $WORKFLOW_COUNT workflow files"
+
+if [ $WORKFLOW_COUNT -gt 0 ]; then
+    echo "🔄 Indexing workflows..."
+    npm run index
+else
+    echo "⚠️  No workflow files found in workflows/ directory"
+    echo "   Place your N8N workflow JSON files in the workflows/ directory"
+fi
+
+# Start the server
+echo "🌐 Starting server..."
+echo "   Server will be available at: http://localhost:8000"
+echo "   Press Ctrl+C to stop the server"
+echo ""
+
+npm start