Add GitHub Actions workflows for automatic APK building

- Added build-apk.yml: Builds APK on every push and PR
- Added release.yml: Creates GitHub releases with APKs when tags are pushed
- APKs will be available as downloadable artifacts
- Supports both debug and release builds

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: dnoggle

.github/workflows/build-apk.yml

@@ -0,0 +1,58 @@
+name: Build APK
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        
+    - name: Setup Android SDK
+      uses: android-actions/setup-android@v3
+      
+    - name: Cache Gradle packages
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
+          
+    - name: Make gradlew executable
+      run: chmod +x ./gradlew
+      
+    - name: Build Debug APK
+      run: ./gradlew assembleDebug
+      
+    - name: Upload APK as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: app-debug-apk
+        path: app/build/outputs/apk/debug/app-debug.apk
+        retention-days: 30
+        
+    - name: Build Release APK
+      run: ./gradlew assembleRelease
+      
+    - name: Upload Release APK as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: app-release-apk
+        path: app/build/outputs/apk/release/app-release-unsigned.apk
+        retention-days: 30

.github/workflows/release.yml

@@ -0,0 +1,77 @@
+name: Release APK
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Release tag'
+        required: true
+        default: 'v1.0.0'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        
+    - name: Setup Android SDK
+      uses: android-actions/setup-android@v3
+      
+    - name: Cache Gradle packages
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
+          
+    - name: Make gradlew executable
+      run: chmod +x ./gradlew
+      
+    - name: Build Release APK
+      run: ./gradlew assembleRelease
+      
+    - name: Get release tag
+      id: get_tag
+      run: |
+        if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
+          echo "tag=${{ github.event.inputs.tag }}" >> $GITHUB_OUTPUT
+        else
+          echo "tag=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+        fi
+      
+    - name: Create Release
+      uses: softprops/action-gh-release@v1
+      with:
+        tag_name: ${{ steps.get_tag.outputs.tag }}
+        name: Release ${{ steps.get_tag.outputs.tag }}
+        body: |
+          ## What's Changed
+          - Fixed screen rotation state reset bug
+          - App now preserves user input and navigation state when device rotates
+          
+          ## Installation
+          1. Download the APK file below
+          2. Enable "Install from unknown sources" in your Android settings
+          3. Install the APK on your device
+          
+          **Note:** This is an unsigned release build. You may need to enable installation from unknown sources.
+        files: |
+          app/build/outputs/apk/release/app-release-unsigned.apk
+        draft: false
+        prerelease: false
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}