try to setup demo

web/deploy/demo.Dockerfile

@@ -4,6 +4,8 @@ FROM node:20
 # Create and change to the app directory
 WORKDIR /usr/src/app
 
+ENV NODE_ENV=demo
+
 # Copy the package.json and package-lock.json files
 COPY package*.json ./
 
@@ -13,8 +15,8 @@ RUN npm install
 # Copy the rest of the application code
 COPY . .
 
-# Expose port 3000
 EXPOSE 8880
+EXPOSE 8881
 
 # Start the application
 CMD ["npm", "run", "start:demo-chat"]