4.5Lighthouse PWA Audit in CI

# Run Lighthouse PWA audit in CI
npx lighthouse https://staging.example.com \
  --only-categories=pwa \
  --output=json \
  --output-path=./lighthouse-pwa.json \
  --chrome-flags="--headless --no-sandbox"

# Parse results and fail if score is below threshold
node -e "
const results = require('./lighthouse-pwa.json');
const score = results.categories.pwa.score * 100;
console.log('PWA Score: ' + score);
if (score < 90) {
    console.error('PWA score below 90. Failing build.');
    process.exit(1);
}
// Check specific audits
const audits = results.audits;
const criticalAudits = [
    'service-worker',
    'installable-manifest',
    'splash-screen',
    'themed-omnibox',
    'viewport'
];
criticalAudits.forEach(audit => {
    if (!audits[audit].score) {
        console.error('FAILED: ' + audit + ' - ' + audits[audit].title);
        process.exit(1);
    }
});
"