Add manual build workflow for AppImage

.github/workflows/build-appimage-manual.yml

@@ -0,0 +1,81 @@
+name: Build ProxMenux Monitor AppImage
+
+on:
+
+  workflow_dispatch:  
+  
+permissions:
+  contents: write
+  
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20'
+        
+    - name: Install dependencies
+      working-directory: AppImage
+      run: npm install --legacy-peer-deps
+      
+    - name: Build Next.js app
+      working-directory: AppImage
+      run: npm run build
+      
+    - name: Install Python dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y python3 python3-pip python3-venv
+        
+    - name: Make build script executable
+      working-directory: AppImage
+      run: chmod +x scripts/build_appimage.sh
+      
+    - name: Build AppImage
+      working-directory: AppImage
+      run: ./scripts/build_appimage.sh
+      
+    - name: Get version from package.json
+      id: version
+      working-directory: AppImage
+      run: echo "VERSION=$(node -p "require('./package.json').version")" >> $GITHUB_OUTPUT
+      
+    - name: Upload AppImage artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: ProxMenux-${{ steps.version.outputs.VERSION }}-AppImage
+        path: AppImage/dist/*.AppImage
+        retention-days: 30
+
+    - name: Generate SHA256 checksum
+      run: |
+        cd AppImage/dist
+        sha256sum *.AppImage > ProxMenux-Monitor.AppImage.sha256
+        echo "Generated SHA256:"
+        cat ProxMenux-Monitor.AppImage.sha256
+
+    - name: Upload AppImage and checksum to /AppImage folder in main
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        git config --global user.name "github-actions[bot]"
+        git config --global user.email "github-actions[bot]@users.noreply.github.com"
+
+        git fetch origin main
+        git checkout main
+
+        rm -f AppImage/*.AppImage AppImage/*.sha256 || true
+
+        # Copy new files
+        cp AppImage/dist/*.AppImage AppImage/
+        cp AppImage/dist/ProxMenux-Monitor.AppImage.sha256 AppImage/
+
+        git add AppImage/*.AppImage AppImage/*.sha256
+        git commit -m "Update AppImage build ($(date +'%Y-%m-%d %H:%M:%S'))" || echo "No changes to commit"
+        git push origin main