Add GitHub Actions workflow for security scanning

.github/workflows/security-scan.yml

@@ -0,0 +1,88 @@
+name: Security Scan
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+  schedule:
+    # Run security scan weekly on Sundays at 2 AM UTC
+    - cron: '0 2 * * 0'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  security-events: write
+  actions: read
+
+jobs:
+  dependency-scan:
+    name: Dependency Vulnerability Scan
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@master
+        with:
+          scan-type: 'fs'
+          scan-ref: '.'
+          format: 'sarif'
+          output: 'trivy-results.sarif'
+
+      - name: Upload Trivy scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v3
+        if: always()
+        with:
+          sarif_file: 'trivy-results.sarif'
+
+  secret-scan:
+    name: Secret Scan
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Run Gitleaks
+        uses: gitleaks/gitleaks-action@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  codeql-analysis:
+    name: CodeQL Analysis
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+    strategy:
+      fail-fast: false
+      matrix:
+        # Customize this based on your project languages
+        # Supported options: 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby'
+        language: [ 'javascript' ]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v3
+        # If autobuild fails, uncomment and customize the manual build steps below
+        # - name: Manual build
+        #   run: |
+        #     # Add your build commands here
+        #     # Example for Node.js: npm ci && npm run build
+        #     echo "Add build steps for ${{ matrix.language }}"
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: "/language:${{matrix.language}}"