Feature/add workflow

.github/workflows/build-app.yaml

@@ -0,0 +1,65 @@
+name: 🏗️ Build & Release APK
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: 🔨 Build APK
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: 📥 Checkout repository
+        uses: actions/checkout@v5
+
+      - name: ☕ Set up JDK 21
+        uses: actions/setup-java@v5
+        with:
+          distribution: temurin
+          java-version: 21
+
+      - name: 💾 Cache Gradle
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper/
+          key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-
+
+      - name: 🔑 Setup keystore
+        run: |
+          mkdir -p app
+          echo "${{ secrets.KEYSTORE }}" | base64 -d > app/anyapk-release.keystore
+
+      - name: 🏭 Build Release APK
+        run: |
+          cd app
+          ../gradlew assembleRelease \
+            -Pandroid.injected.signing.store.file=anyapk-release.keystore \
+            -Pandroid.injected.signing.store.password="${{ secrets.KEYSTORE_PASSWORD }}" \
+            -Pandroid.injected.signing.key.alias="${{ secrets.KEY_ALIAS }}" \
+            -Pandroid.injected.signing.key.password="${{ secrets.KEY_PASSWORD }}" \
+            --no-daemon
+
+      - name: 📝 Extract versionName
+        id: get_version
+        run: |
+          VERSION_NAME=$(grep 'versionName =' app/build.gradle.kts | head -1 | sed 's/.*"\(.*\)".*/\1/')
+          echo "VERSION_NAME=$VERSION_NAME" >> $GITHUB_ENV
+
+      - name: 📦 Create GitHub Release & upload APK
+        uses: softprops/action-gh-release@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref_name }}
+          name: "AnyAPK v${{ env.VERSION_NAME }}"
+          body: "📱 Automated release of AnyAPK"
+          draft: false
+          prerelease: false
+          files: app/build/outputs/apk/release/app-release.apk