Run npm install on server after deployment

.gitea/workflows/deploy.yml

@@ -62,6 +62,16 @@ jobs:
             -e "ssh -i $SSH_KEY -o StrictHostKeyChecking=no -p $SERVER_PORT" \
             ./frontend/dist/ ${SERVER_USER}@${SERVER_HOST}:/var/www/html/turbotrades/
 
+          # Install dependencies on server
+          echo "📦 Installing dependencies on server..."
+          ssh -i $SSH_KEY -o StrictHostKeyChecking=no -p $SERVER_PORT ${SERVER_USER}@${SERVER_HOST} << 'EOF'
+            cd /root/ttbackend
+            npm install --production
+            chown -R www-data:www-data /var/www/html/turbotrades
+            chmod -R 755 /var/www/html/turbotrades
+            echo "✅ Dependencies installed!"
+          EOF
+
           echo "✅ Deployment complete!"
           echo "🌐 Frontend: https://turbotrades.dev"
           echo "🔧 Backend: https://api.turbotrades.dev"