Explicitly import and register EJS engine dependency

[Copilot]

ejs was listed as a production dependency but only implicitly loaded by Express's internal view engine resolution. All production dependencies should be explicitly required in source code.

Changes

• index.js: Add explicit require("ejs") and register it as the rendering engine via app.engine():

const ejs = require("ejs");
// ...
app.engine("ejs", ejs.renderFile);
app.set("view engine", "ejs");

---

🔒 GitHub Advanced Security automatically protects Copilot coding agent pull requests. You can protect all pull requests by enabling Advanced Security for your repositories. Learn more about Advanced Security.

[netlify]

✅ Deploy Preview for myapp-52980b ready!

Name	Link
🔨 Latest commit	c32dc7c
🔍 Latest deploy log	https://app.netlify.com/projects/myapp-52980b/deploys/699df91ae5a7c90008034984
😎 Deploy Preview	https://deploy-preview-20--myapp-52980b.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.