Add GitHub Actions build workflows

Author: ibrahim-m-dev

.github/workflows/backend.yml

@@ -0,0 +1,35 @@
+name: Backend Build Check
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "backend/**"
+      - ".github/workflows/backend.yml"
+  pull_request:
+    branches: [main]
+    paths:
+      - "backend/**"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Java 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: "21"
+          distribution: "temurin"
+          cache: "maven"
+
+      - name: Make Maven wrapper executable
+        working-directory: backend
+        run: chmod +x mvnw
+
+      - name: Build backend
+        working-directory: backend
+        run: ./mvnw clean package -DskipTests

.github/workflows/frontend.yml

@@ -0,0 +1,35 @@
+name: Frontend Build Check
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "frontend/**"
+      - ".github/workflows/frontend.yml"
+  pull_request:
+    branches: [main]
+    paths:
+      - "frontend/**"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js 22
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: "npm"
+          cache-dependency-path: "frontend/package-lock.json"
+
+      - name: Install frontend dependencies
+        working-directory: frontend
+        run: npm ci
+
+      - name: Build frontend
+        working-directory: frontend
+        run: npm run build