adding github action

Author: James Hiester

.github/workflows/redteam-scan.yml

@@ -0,0 +1,85 @@
+name: Promptfoo Redteam Scan
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+
+env:
+  NODE_VERSION: '22'
+  PROMPTFOO_HOST: ${{ vars.PROMPTFOO_HOST }}
+  SCAN_TEMPLATE_ID: ${{ vars.SCAN_TEMPLATE_ID }}
+  TARGET_ID: ${{ vars.TARGET_ID }}
+  PROMPTFOO_API_KEY: ${{ secrets.PROMPTFOO_API_KEY }}
+  OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+  PROMPTFOO_CACHE_PATH: ~/.cache/promptfoo
+  PORT: 4000
+
+jobs:
+  evaluate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'npm'
+
+      - name: Install project dependencies
+        run: |
+          npm install
+
+      - name: Start dev server
+        run: |
+          nohup npm run dev > /dev/null 2>&1 &
+          sleep 10
+          echo "Dev server started in background"
+
+      - name: Install dependencies
+        run: |
+          npm install -g promptfoo@latest
+
+      - name: Cache promptfoo
+        uses: actions/cache@v4
+        with:
+          path: ~/.cache/promptfoo
+          key: ${{ runner.os }}-promptfoo-${{ hashFiles('prompts/**') }}
+          restore-keys: |
+            ${{ runner.os }}-promptfoo-
+
+      - name: Promptfoo Login
+        run: |
+          promptfoo auth login --host "$PROMPTFOO_HOST" --api-key "$PROMPTFOO_API_KEY"
+
+      - name: Run redteam
+        run: |
+          promptfooredteam run -c "$SCAN_TEMPLATE_ID" -t "$TARGET_ID" \
+            -c promptfooconfig.yaml \
+            --share \
+            -o results.json \
+            -o report.html
+
+      - name: Check quality gate
+        run: |
+          FAILURES=$(jq '.results.stats.failures' results.json)
+          EVAL_ID=$(jq '.evalId' results.json)
+          EVAL_URL=$(jq -r '.shareableUrl' results.json)
+          echo "Eval ID: $EVAL_ID"
+          echo "URL: $EVAL_URL"
+          if [ "$FAILURES" -gt 0 ]; then
+            echo "❌ Eval failed with $FAILURES failures"
+            exit 1
+          fi
+          echo "✅ All tests passed!"
+
+      - name: Upload results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: eval-results
+          path: |
+            results.json
+            report.html
+