Add build workflow

Author: Sohil876

.github/workflows/build.yaml

@@ -0,0 +1,49 @@
+name: Build Android APK
+
+on:
+    push:
+        branches: [dev]
+    pull_request:
+        branches: [dev]
+    workflow_dispatch:
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+
+        env:
+            SDK_VERSION: 34
+            NDK_VERSION: 27.0.11718014
+            MIN_SDK: 29
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v4
+              with:
+                  submodules: recursive
+
+            - name: Setup Java
+              uses: actions/setup-java@v3
+              with:
+                  distribution: "temurin"
+                  java-version: "17"
+
+            - name: Setup Android SDK
+              uses: android-actions/setup-android@v3
+
+            - name: Install NDK
+              run: |
+                  sdkmanager "ndk;$NDK_VERSION"
+                  sdkmanager "cmake;3.22.1"
+
+            - name: Grant execute permission to Gradle wrapper
+              run: chmod +x ./gradlew
+
+            - name: Build Debug APK
+              run: ./gradlew assembleDebug
+
+            - name: Upload APK artifact
+              uses: actions/upload-artifact@v4
+              with:
+                  name: testgame-apk
+                  path: app/build/outputs/apk/debug/app-debug.apk