Add CI workflow to validate AVD skin conversion

Author: shai-almog

.github/workflows/avd-skin-conversion.yml

@@ -0,0 +1,34 @@
+name: AVD Skin Conversion
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  convert:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Java 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '21'
+
+      - name: Download sample AVD skin
+        run: |
+          curl -L -o skins.zip https://github.com/google/android-emulator-skins/archive/refs/heads/main.zip
+          mkdir -p skins
+          unzip -q skins.zip "android-emulator-skins-main/Pixel_4/*" -d skins
+
+      - name: Convert AVD skin to Codename One skin
+        run: |
+          mkdir -p build
+          java AvdSkinToCodenameOneSkin.java skins/android-emulator-skins-main/Pixel_4 build/Pixel_4.skin
+
+      - name: Validate Codename One skin archive
+        run: |
+          test -f build/Pixel_4.skin
+          unzip -l build/Pixel_4.skin