Workflow nightly (#462)

Nightly APK build

.github/workflows/nightly.yml

@@ -0,0 +1,45 @@
+name: Nightly APK
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+  workflow_dispatch:  # This enables manual triggering
+
+jobs:
+  build:
+    # if: github.event.schedule_activity.commits > 0
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/[email protected]
+
+      - name: Setup Java JDK
+        uses: actions/[email protected]
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+          cache: 'gradle'
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Build with Gradle
+        run: ./gradlew assembleDebug --stacktrace
+
+      - name: Rename output APK
+        if: success()
+        run: |
+          DATE=$(date +'%Y%m%d')
+          mv app/build/outputs/apk/debug/app-debug.apk app/build/outputs/apk/debug/OSMTracker-nightly-$DATE.apk
+
+      - name: Create or Update GitHub Nightly Release
+        if: success()
+        uses: softprops/[email protected]
+        with:
+          tag_name: 'nightly'
+          name: 'Nightly Build'
+          draft: false
+          prerelease: true
+          files: app/build/outputs/apk/debug/OSMTracker-nightly-*.apk
+          body: "Nightly build for OSMTracker"
+          token: ${{ secrets.GITHUB_TOKEN }}