Add node-app.yml

Run tests on the T view (web) application.

.github/workflows/node-app.yml

@@ -0,0 +1,36 @@
+name: Node.js CI
+
+on:
+  push:
+    branches: [trunk]
+  pull_request:
+    branches: [trunk]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install dependencies
+        working-directory: ./view/web
+        run: npm install
+
+      - name: Build TypeScript code
+        working-directory: ./view/web
+        run: npm run build
+
+      - name: Run Vitest tests
+        working-directory: ./view/web
+        run: npm run test