feat(ci): add CI for android

.github/workflows/android-ci.yaml

@@ -0,0 +1,45 @@
+name: Kotlin CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Build and test
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          submodules: "recursive"
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: "17"
+          cache: "gradle"
+
+      - name: Grant execute permission for gradlew
+        run: |
+          cd android
+          chmod +x gradlew
+
+      - name: Auto-format with ktfmt
+        run: |
+          cd android
+          ./gradlew ktfmtFormat
+
+      - name: Build with Gradle
+        run: |
+          cd android 
+          ./gradlew build
+
+      - name: Run tests
+        run: |
+          cd android
+          ./gradlew test