workflow: github action android build & dependabot

.github/dependabot.yml

@@ -0,0 +1,26 @@
+version: 2
+registries:
+  maven-google:
+    type: maven-repository
+    url: https://maven.google.com
+    username: ""
+    password: ""
+  maven-center:
+    type: maven-repository
+    url: https://repo.maven.apache.org/maven2/
+    username: ""
+    password: ""
+updates:
+  - package-ecosystem: "gradle"
+    directory: "/"
+    registries:
+      - maven-center
+      - maven-google
+
+    schedule:
+      interval: "daily"
+
+  - package-ecosystem: "github-actions"
+    directory: ".github/workflows"
+    schedule:
+      interval: "daily"

.github/workflows/build.yml

@@ -0,0 +1,30 @@
+name: Android Build
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: gradle
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+      - name: Build with Gradle
+        run: ./gradlew :api:assemble
+      - name: Upload a Build Artifact
+        if: success()
+        uses: actions/upload-artifact@v4.4.3
+        with:
+          name: build-artifact
+          path: |
+            ./**/*.arr