Add CI/CD actions

Author: Tetr4

.github/workflows/cd.yml

@@ -0,0 +1,25 @@
+name: Continuous Delivery
+
+on:
+  push:
+    tags:
+      - 'v*' # e.g. v1.0.0
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: alvrme/alpine-android:android-34-jdk17
+    env:
+      SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
+      KEYSTORE_BASE64: ${{ secrets.KEYSTORE_BASE64 }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Decode keystore
+        run: echo $KEYSTORE_BASE64 | base64 --decode > keystore.jks
+      - name: Build APK AAB
+        run: ./gradlew assembleRelease bundleRelease
+      - uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            app/build/outputs/apk/release/*.apk
+            app/build/outputs/bundle/release/*.aab

.github/workflows/ci.yml

@@ -0,0 +1,24 @@
+name: Continuous Integration
+
+on:
+  pull_request: null
+  push:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: alvrme/alpine-android:android-34-jdk17
+    env:
+      SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
+      KEYSTORE_BASE64: ${{ secrets.KEYSTORE_BASE64 }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Decode keystore
+        run: echo $KEYSTORE_BASE64 | base64 --decode > keystore.jks
+      - name: Build APK
+        run: ./gradlew assembleRelease
+      - uses: actions/upload-artifact@v4
+        with:
+          name: APK
+          path: app/build/outputs/apk/release/*.apk