Add CI pipeline

.github/workflows/ci.yml

@@ -0,0 +1,63 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - 'feature/*'
+      - 'dummy-App'
+
+  pull_request:
+    branches:
+      - 'dummy-App'
+      - 'master'
+
+jobs:
+  frontend:
+    name: Frontend CI
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: public/package-lock.json
+
+      - name: Install frontend dependencies
+        working-directory: public
+        run: npm ci
+
+      - name: Run frontend tests
+        working-directory: public
+        run: npm test -- --watchAll=false --passWithNoTests
+
+      - name: Build frontend
+        working-directory: public
+        run: npm run build
+        env:
+          CI: false
+
+  backend:
+    name: Backend CI
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Install backend dependencies
+        working-directory: server
+        run: npm install
+
+      - name: Verify backend
+        working-directory: server
+        run: node --check index.js