Add analyzer and frontend lint guardrails

.github/workflows/ci.yml

@@ -14,6 +14,20 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Install frontend tooling
+        run: npm install
+
+      - name: Lint frontend
+        run: npm run lint
+
+      - name: Check frontend formatting
+        run: npm run format:check
+
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with: