Fix GitHub Actions build issues

🔧 Fixed Build Problems:
- Add proper Node.js setup with npm caching
- Use working-directory for client build step
- Add client build verification with error handling
- Simplified workflow removing complex artifact generation
- Better error messages and build status reporting

🔄 Node.js Version Handling:
- Set explicit Node.js 18 setup
- Removed deprecated Node.js 24 environment variable
- Added proper npm cache configuration
- Cache both client and server package-lock.json files

✅ Build Process:
1. Checkout repository
2. Set up Node.js 18 with npm caching
3. Build React client with npm ci + npm run build
4. Verify client build succeeded
5. Build multi-platform Docker image
6. Push to GitHub Container Registry

This should resolve the npm build command not found error and Node.js deprecation warnings.

.github/workflows/docker-build.yml

@@ -22,6 +22,15 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v4
 
+    - name: Set up Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '18'
+        cache: 'npm'
+        cache-dependency-path: |
+          client/package-lock.json
+          server/package-lock.json
+
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
 
@@ -46,11 +55,22 @@ jobs:
           type=sha,prefix=sha-
 
     - name: Build React client
+      working-directory: ./client
       run: |
-        cd client
         npm ci
         npm run build
-        cd ..
+
+    - name: Verify client build
+      run: |
+        ls -la client/dist/ || echo "No dist directory found"
+        if [ -d "client/dist" ]; then
+          echo "✅ Client build successful"
+          echo "Build contents:"
+          find client/dist -type f | head -5
+        else
+          echo "❌ Client build failed - no dist directory"
+          exit 1
+        fi
 
     - name: Build and push Docker image
       uses: docker/build-push-action@v5
@@ -63,83 +83,12 @@ jobs:
         cache-from: type=gha
         cache-to: type=gha,mode=max
 
-    - name: Generate deployment artifact
+    - name: Image build summary
       if: github.event_name != 'pull_request'
       run: |
-        mkdir -p deployment
-        
-        # Create production docker-compose file
-        cat > deployment/docker-compose.prod.yml << 'EOF'
-        version: '3.8'
-        
-        services:
-          nginx:
-            image: nginx:alpine
-            container_name: etsy-nginx
-            ports:
-              - "3000:80"
-            volumes:
-              - ./nginx.conf:/etc/nginx/nginx.conf:ro
-              - client_dist:/usr/share/nginx/html:ro
-            depends_on:
-              - etsy-tracker
-            restart: unless-stopped
-            networks:
-              - etsy-network
-        
-          etsy-tracker:
-            image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}
-            container_name: etsy-finance-tracker
-            expose:
-              - "8080"
-            environment:
-              - NODE_ENV=production
-              - PORT=8080
-            volumes:
-              - ./data:/app/data
-              - etsy_uploads:/app/uploads
-              - client_dist:/usr/share/nginx/html
-            restart: unless-stopped
-            networks:
-              - etsy-network
-        
-        volumes:
-          etsy_uploads:
-          client_dist:
-        
-        networks:
-          etsy-network:
-            driver: bridge
-        EOF
-        
-        # Copy nginx config
-        cp nginx.conf deployment/
-        
-        # Create deployment script
-        cat > deployment/deploy.sh << 'EOF'
-        #!/bin/bash
-        
-        echo "🚀 Deploying Etsy Finance Tracker..."
-        
-        # Pull latest image
-        docker-compose -f docker-compose.prod.yml pull
-        
-        # Stop existing containers
-        docker-compose -f docker-compose.prod.yml down
-        
-        # Start with new image
-        docker-compose -f docker-compose.prod.yml up -d
-        
-        echo "✅ Deployment complete!"
-        echo "🌐 Access your app at: http://localhost:3000"
-        EOF
-        
-        chmod +x deployment/deploy.sh
-
-    - name: Upload deployment artifacts
-      if: github.event_name != 'pull_request'
-      uses: actions/upload-artifact@v4
-      with:
-        name: deployment-files
-        path: deployment/
-        retention-days: 30
+        echo "✅ Docker image built and pushed successfully!"
+        echo "📦 Image tags:"
+        echo "${{ steps.meta.outputs.tags }}"
+        echo ""
+        echo "🚀 Deploy on your Mac Mini with:"
+        echo "git pull && ./build-deploy.sh ghcr"