feat(ci): add quality gates to ci workflow

.github/workflows/ci.yml

@@ -190,3 +190,39 @@ jobs:
       - name: Run Lighthouse CI
         run: npm run test:lighthouse
         continue-on-error: true
+
+  quality:
+    name: Quality Gates
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          
+      - name: Install dependencies
+        run: npm ci
+        
+      - name: Run tests with coverage
+        run: npm run test:coverage
+        
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false
+          
+      - name: Build
+        run: npm run build
+        
+      - name: Check bundle size
+        run: npx bundlesize
+        
+      - name: Security audit
+        run: npm audit --audit-level=moderate
+        continue-on-error: true