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src/Web/StellaOps.Web/.lighthouserc.js

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+/**
+ * Lighthouse CI Configuration
+ *
+ * Quality gates aligned with StellaOps advisory:
+ * - Performance: >= 90
+ * - Accessibility: >= 95
+ * - Best Practices: >= 90
+ * - SEO: >= 90
+ */
+module.exports = {
+  ci: {
+    collect: {
+      staticDistDir: './dist/stella-ops-web/browser',
+      numberOfRuns: 3,
+      settings: {
+        // Mobile-first testing
+        formFactor: 'mobile',
+        throttling: {
+          rttMs: 150,
+          throughputKbps: 1638.4,
+          cpuSlowdownMultiplier: 4,
+        },
+        screenEmulation: {
+          mobile: true,
+          width: 375,
+          height: 667,
+          deviceScaleFactor: 2,
+          disabled: false,
+        },
+        // Skip audits that don't apply to SPAs
+        skipAudits: [
+          'uses-http2', // Often depends on server config
+          'redirects-http', // Handled by deployment
+        ],
+      },
+    },
+    assert: {
+      preset: 'lighthouse:recommended',
+      assertions: {
+        // Performance budget
+        'categories:performance': ['warn', { minScore: 0.9 }],
+        'first-contentful-paint': ['warn', { maxNumericValue: 2000 }],
+        'largest-contentful-paint': ['warn', { maxNumericValue: 2500 }],
+        'cumulative-layout-shift': ['error', { maxNumericValue: 0.1 }],
+        'total-blocking-time': ['warn', { maxNumericValue: 300 }],
+
+        // Accessibility (strict - these are blocking)
+        'categories:accessibility': ['error', { minScore: 0.95 }],
+        'color-contrast': 'error',
+        'document-title': 'error',
+        'html-has-lang': 'error',
+        'image-alt': 'error',
+        'label': 'error',
+        'link-name': 'error',
+        'meta-viewport': 'error',
+        'button-name': 'error',
+        'aria-roles': 'error',
+        'aria-valid-attr': 'error',
+        'aria-valid-attr-value': 'error',
+
+        // Best Practices
+        'categories:best-practices': ['warn', { minScore: 0.9 }],
+        'is-on-https': 'off', // Handled by deployment
+        'no-vulnerable-libraries': 'error',
+
+        // SEO
+        'categories:seo': ['warn', { minScore: 0.9 }],
+        'meta-description': 'warn',
+        'robots-txt': 'off', // Handled by deployment
+      },
+    },
+    upload: {
+      target: 'filesystem',
+      outputDir: './lighthouse-results',
+      reportFilenamePattern: '%%PATHNAME%%-%%DATETIME%%-report.%%EXTENSION%%',
+    },
+  },
+};