feat(checks): reusable infrastructure checks

.github/workflows/reusable-infrastructure-checks.yaml

@@ -0,0 +1,25 @@
+name: Reusable infrastructure checks
+
+on:
+  workflow_call:
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Lint Ansible
+        uses: ansible/ansible-lint@main
+
+      - name: Sanity Ansible
+        uses: ansible/ansible-content-actions/.github/workflows/sanity.yaml@main
+
+      - name: Find and Validate NGINX Configs
+        run: |
+          find $GITHUB_WORKSPACE -name 'nginx.conf' | while read -r conf; do
+            echo "Validating $conf"
+            sudo nginx -t -c "$conf" || exit 1
+          done