feat: add npm audit and trivy CI checks on PRs

Ticket: WP-6506

Author: pranavjain97

.github/workflows/build-and-test.yaml

@@ -99,6 +99,43 @@ jobs:
       - name: Lint
         run: npm run lint
 
+  trivy-scan:
+    name: Security - Trivy Scan
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ inputs.node-version }}
+          cache: 'npm'
+
+      - name: Cache dependencies
+        uses: actions/cache@v3
+        id: node-modules-cache
+        with:
+          path: '**/node_modules'
+          key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-modules-
+
+      - name: Install dependencies
+        if: steps.node-modules-cache.outputs.cache-hit != 'true'
+        run: npm ci
+
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@master
+        with:
+          scan-type: 'fs'
+          scan-ref: '.'
+          format: 'table'
+          severity: 'CRITICAL,HIGH'
+          exit-code: '1'
+          ignore-unfixed: true
+          scanners: 'vuln'  # Only scan for vulnerabilities, not secrets
+
   test:
     name: Test
     runs-on: ubuntu-latest