Simplify deployment workflow and fix package configuration

.github/workflows/main_poweron-nyla.yml

@@ -21,7 +21,9 @@ jobs:
           cache: 'npm' # Aktiviert Caching für schnellere Builds
 
       - name: Install dependencies
-        run: npm install
+        run: |
+          npm ci
+          npm install express
 
       - name: Build React app
         run: npm run build
@@ -31,9 +33,6 @@ jobs:
           # Create deployment package with build files and necessary configs
           mkdir deploy
           cp -r dist/* deploy/
-          cp package.json deploy/
-          cp package-lock.json deploy/
-          cp staticwebapp.config.json deploy/
           # Create a simple server.js for serving the app
           echo "const express = require('express');" > deploy/server.js
           echo "const path = require('path');" >> deploy/server.js
@@ -42,8 +41,18 @@ jobs:
           echo "app.get('/*', function(req, res) { res.sendFile(path.join(__dirname, 'index.html')); });" >> deploy/server.js
           echo "const port = process.env.PORT || 8080;" >> deploy/server.js
           echo "app.listen(port, () => console.log('Server running on port', port));" >> deploy/server.js
-          # Update package.json to include express and start script
-          node -e "const pkg = require('./deploy/package.json'); pkg.dependencies.express = '^4.18.2'; pkg.scripts.start = 'node server.js'; require('fs').writeFileSync('./deploy/package.json', JSON.stringify(pkg, null, 2));"
+          # Create a new package.json for deployment
+          echo '{
+            "name": "frontend",
+            "version": "1.0.0",
+            "private": true,
+            "scripts": {
+              "start": "node server.js"
+            },
+            "dependencies": {
+              "express": "^4.18.2"
+            }
+          }' > deploy/package.json
 
       - name: 'Deploy to Azure Web App'
         uses: azure/webapps-deploy@v3