added build workflow

.github/workflows/build.yml

@@ -0,0 +1,56 @@
+name: CI Pipeline
+
+on:
+  push:
+    branches:
+      - "**"
+  pull_request:
+    branches:
+      - "**"
+
+jobs:
+  backend:
+    name: Backend Build
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./backend
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: "18"
+          cache: "npm"
+          cache-dependency-path: "./backend/package-lock.json"
+
+      - name: Install Dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+  frontend:
+    name: Frontend Build
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./frontend
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: "18"
+          cache: "npm"
+          cache-dependency-path: "./frontend/package-lock.json"
+
+      - name: Install Dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build