Merge branch 'testing' of https://github.com/unibuc-cs/software-engineering-product-sprintify into testing

Author: pUmA73

.github/workflows/ci-cd.yml

@@ -0,0 +1,56 @@
+name: Android CI with Firebase Emulator
+
+on:
+  push:
+    branches:
+      - staging
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: 17
+
+      - name: Set up Android SDK
+        uses: android-actions/setup-android@v3
+
+      - name: Grant Gradlew Permissions
+        run: chmod +x ./gradlew
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+
+      - name: Install Firebase Tools
+        run: npm install -g firebase-tools
+
+      - name: Start Firebase Emulator (Background)
+        run: |
+          firebase emulators:start --only auth,database --project demo-project &
+          sleep 20  # Ensure emulators are fully started
+
+      - name: Run Unit Tests (Located in `test/`)
+        run: ./gradlew testDebugUnitTest
+
+      - name: Start Android Emulator for UI & Integration Tests
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 33
+          arch: x86_64
+          profile: Nexus 6
+          script: |
+            # Ensure Emulator is Ready
+            adb wait-for-device
+            sleep 10
+
+            # Run UI & Integration Tests (Located in `androidTest/`)
+            ./gradlew connectedDebugAndroidTest