feat: setup CI for Google Play Store submission and refactor UI

.gitea/workflows/android.yml

@@ -63,4 +63,29 @@ jobs:
 
       - name: assembleDebug (cargo-ndk → jniLibs → APK)
         working-directory: clients/android
+        env:
+          VERSION_CODE: ${{ github.run_number }}
         run: ./gradlew :app:assembleDebug --stacktrace
+
+      - name: Build Release Bundle (AAB)
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        working-directory: clients/android
+        env:
+          VERSION_CODE: ${{ github.run_number }}
+          RELEASE_KEYSTORE_FILE: "../release.jks"
+          RELEASE_KEYSTORE_PASSWORD: ${{ secrets.RELEASE_KEYSTORE_PASSWORD }}
+          RELEASE_KEY_ALIAS: ${{ secrets.RELEASE_KEY_ALIAS }}
+          RELEASE_KEY_PASSWORD: ${{ secrets.RELEASE_KEY_PASSWORD }}
+        run: |
+          echo "${{ secrets.RELEASE_KEYSTORE_BASE64 }}" | base64 -d > release.jks
+          ./gradlew :app:bundleRelease --stacktrace
+
+      - name: Upload to Google Play (Internal Testing)
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        uses: r0adkll/upload-google-play@v1
+        with:
+          serviceAccountJsonKeyData: ${{ secrets.SERVICE_ACCOUNT_JSON }}
+          packageName: io.unom.punktfunk
+          releaseFiles: clients/android/app/build/outputs/bundle/release/app-release.aab
+          track: internal
+          status: completed