Revise Android CI workflow for APK build and release

Updated Android CI workflow to build debug APK and create a GitHub release.

.github/workflows/android.yml

@@ -0,0 +1,38 @@
+name: Build Android APK
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Java 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 17
+
+      - name: Set up Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build debug APK
+        run: ./gradlew assembleDebug
+
+      - name: Create GitHub release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: build-${{ github.run_number }}
+          name: Build ${{ github.run_number }}
+          files: app/build/outputs/apk/debug/app-debug.apk
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}