Role: Senior Front-End Developer. Objective: Final fix for the preview crash. We must use ES Module syntax to avoid the ReferenceError: require is not defined. Please overwrite the project with these three EXACT files: File 1: package.json { "name": "dyslexia-app-demo", "version": "1.0.0", "type": "module", "scripts": { "start": "node server.js" } } File 2: server.js (This uses import instead of require to satisfy the ES Module requirement). import http from 'http'; import fs from 'fs'; import path from 'path'; import { fileURLToPath } from 'url'; const __dirname = path.dirname(fileURLToPath(import.meta.url)); const PORT = process.env.PORT || 3000; const server = http.createServer((req, res) => { const filePath = path.join(__dirname, 'index.html'); fs.readFile(filePath, (err, content) => { if (err) { res.writeHead(500); res.end('Error loading index.html'); } else { res.writeHead(200, { 'Content-Type': 'text/html' }); res.end(content, 'utf-8'); } }); }); server.listen(PORT, () => { console.log(`Server is running on port ${PORT}`); }); File 3: index.html (Ensure the AI provides the full HTML file here using the Vue.js + Tailwind CDN approach: Background: #FDFBF7 (Cream) Font: Comic Sans MS, Andika, or Lexend Hub: 4 Large colorful bubbles (🔊 Letter Sounds, 🦘 Syllable Jump, 🧱 Word Builder, 📖 Story Time) Exercise: The sentence-chunking word-chips that highlight yellow on click. Settings: Background color toggle). Why this WILL work: No more require errors: I replaced require with import. This is the only way to stop that specific ReferenceError. __dirname Fix: In ES Modules, __dirname doesn't exist. I added the fileURLToPath logic to recreate it so the server can actually find your index.html file. Alignment: The package.json now explicitly says "type": "module", so the server and the configuration are finally speaking the same language.
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