ci: smoke-test that npm run openapi-ts still works on dependency bumps

.github/workflows/openapi-codegen-smoke-test.yml

@@ -0,0 +1,32 @@
+name: OpenAPI Codegen Smoke Test
+
+on:
+  pull_request:
+    paths:
+      - 'package.json'
+      - 'package-lock.json'
+
+permissions:
+  contents: read
+
+jobs:
+  openapi-codegen-smoke-test:
+    name: Verify openapi-ts codegen still runs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+        with:
+          persist-credentials: false
+
+      - name: Setup Node.js
+        uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+        with:
+          node-version: '24.15.0'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci --include=optional --ignore-scripts
+
+      - name: Run openapi-ts against the production gateway
+        run: npm run openapi-ts