<script
  defer
  data-website-id="YOUR_TRFYX_PROJECT_ID"
  data-domain="yourdomain.com"
  src="https://app.trfyx.com/script.js"
></script>

Integrate Trfyx analytics into my application.

Use https://app.trfyx.com/script.js as the tracking script URL.
Configure data-website-id="YOUR_TRFYX_PROJECT_ID" and data-domain="yourdomain.com", replacing both placeholders with the values I provide.

Use the appropriate integration point for this project's framework:
- For React or Next.js, use the shared root layout or framework script component.
- For a vanilla HTML app, put the script in the shared <head>.
- For server-rendered apps, use the base template or global layout.

Load the tracker once across all pages and routes. Do not add duplicate copies to individual pages or components. Show me which files you changed and how to verify the tracker in the browser.