Add bandit scan

Author: AmberJBlue

.github/workflows/security.yaml

@@ -57,3 +57,57 @@ jobs:
         with:
           sarif_file: 'trivy-results.sarif'
           category: 'trivy-security-scan'
+
+  bandit-scan:
+    name: Bandit
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+      actions: read
+      contents: read
+      checks: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: "pip"
+
+      - name: Create virtual environment
+        run: |
+          python -m pip install --upgrade pip
+          python -m venv .venv
+
+      - name: Install dependencies
+        run: |
+          source .venv/bin/activate
+          pip install -e ".[dev]"
+
+      - name: Install Bandit
+        run: |
+          source .venv/bin/activate
+          pip install bandit[toml]
+
+      - name: Run Bandit Security Scan
+        uses: PyCQA/bandit-action@v1
+        with:
+          targets: "."
+
+      - name: Upload SARIF results to Security tab
+        if: github.ref == 'refs/heads/main'
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: results.sarif
+          category: bandit-security-scan
+        continue-on-error: true
+
+      - name: Upload SARIF as artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: bandit-sarif-results
+          path: results.sarif
+          retention-days: 30
+        continue-on-error: true