fix: Update Dockerfile to use serve for production and enhance Vite configuration with CORS support

client/Dockerfile

@@ -1,4 +1,4 @@
-# Production build with Vite preview server
+# Production build with simple HTTP server
 FROM node:18-alpine
 
 WORKDIR /app
@@ -15,8 +15,11 @@ COPY . .
 # Build the app
 RUN npm run build
 
-# Expose port for Vite preview server
+# Install serve globally for serving static files
+RUN npm install -g serve
+
+# Expose port
 EXPOSE 3000
 
-# Serve built files with Vite preview (allow all hosts)
-CMD ["npm", "run", "preview", "--", "--host", "0.0.0.0", "--port", "3000", "--strictPort"]
+# Serve built files with serve (no host restrictions)
+CMD ["serve", "-s", "dist", "-l", "3000"]

client/vite.config.js

@@ -5,12 +5,18 @@ export default defineConfig({
   plugins: [react()],
   server: {
     port: 3000,
-    host: '0.0.0.0'
+    host: '0.0.0.0',
+    hmr: {
+      clientPort: 3000
+    }
   },
   preview: {
     port: 3000,
     host: '0.0.0.0',
     strictPort: true,
-    allowedHosts: 'all'
+    cors: true,
+    headers: {
+      'Access-Control-Allow-Origin': '*'
+    }
   }
 })