introduce prerelease tags

.github/workflows/build.yml

@@ -26,24 +26,42 @@ jobs:
           large-packages: false
           docker-images: false
           swap-storage: false
+
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
           java-version: '17'
+
+      - name: Determine build type
+        id: build-type
+        run: |
+          if [[ "${{ github.ref_name }}" =~ ^v.*-(pre|alpha) ]]; then
+            echo "is_prerelease=true" >> $GITHUB_OUTPUT
+            echo "Build type: Prerelease (APK only)"
+          else
+            echo "is_prerelease=false" >> $GITHUB_OUTPUT
+            echo "Build type: Full release (APK + Bundle + Play Console)"
+          fi
+
       - uses: ruby/setup-ruby@v1
+        if: steps.build-type.outputs.is_prerelease == 'false'
         with:
           ruby-version: '3.3'
           bundler-cache: true
           working-directory: app
+
       - uses: actions/setup-node@v4
         with:
           node-version: 20
+
       - name: Download bundle dependencies
+        if: steps.build-type.outputs.is_prerelease == 'false'
         run: |
           gem install bundler
           bundle config path vendor/bundle
           bundle install
+
       - name: Build container proxy
         working-directory: packages/flutter_mozilla_components/javascript/container_proxy
         run: |
@@ -61,6 +79,7 @@ jobs:
           channel: stable
           flutter-version: 3.32.5
           cache: true
+
       - name: Setup Flutter dependencies
         working-directory: app
         run: |
@@ -70,19 +89,34 @@ jobs:
       - name: Build APK
         working-directory: app
         run: flutter build apk --verbose --release --split-per-abi --no-tree-shake-icons
+
       - name: Build App Bundle
+        if: steps.build-type.outputs.is_prerelease == 'false'
         working-directory: app
         run: flutter build appbundle --verbose --no-tree-shake-icons
-      - name: Create github artifact release
+
+      - name: Create github artifact release (Prerelease)
+        if: steps.build-type.outputs.is_prerelease == 'true'
+        uses: ncipollo/release-action@v1.17.0
+        with:
+          artifacts: "app/build/app/outputs/apk/release/*.apk"
+          prerelease: true
+
+      - name: Create github artifact release (Full)
+        if: steps.build-type.outputs.is_prerelease == 'false'
         uses: ncipollo/release-action@v1.17.0
         with:
           artifacts: "app/build/app/outputs/apk/release/*.apk,app/build/app/outputs/bundle/release/app-release.aab"
+
       - name: Upload app bundle artifact
+        if: steps.build-type.outputs.is_prerelease == 'false'
         uses: actions/upload-artifact@v4
         with:
           name: appbundle
           path: app/build/app/outputs/bundle/release/app-release.aab
+
       - name: Release to Google Play (internal)
+        if: steps.build-type.outputs.is_prerelease == 'false'
         working-directory: app
         env:
           SUPPLY_PACKAGE_NAME: ${{ secrets.ANDROID_PACKAGE_NAME }}