ci: add pytest and Cloudflare proxy node test workflow

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Run Python tests
+        run: |
+          set -euo pipefail
+          python3 -m pip install --upgrade pip
+          python3 -m pip install pytest
+          python3 -m pytest tests -q
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: "22"
+
+      - name: Run Cloudflare proxy tests
+        working-directory: cloudflare/codex-audit-proxy
+        run: |
+          set -euo pipefail
+          node --experimental-default-type=module --test tests/index.test.mjs