T01: update frontend Dockerfile

frontend/Dockerfile

@@ -1,20 +1,23 @@
-FROM node:22-alpine AS build
+# Use Node.js 22 LTS as base image
+FROM node:22-alpine
 
+# Set working directory
 WORKDIR /app
 
+# Copy package files
 COPY package*.json ./
+
+# Install dependencies
 RUN npm ci
 
+# Copy source code
 COPY . .
 
+# Build the application
 RUN npm run build
 
-FROM nginx:alpine
-RUN apk add --no-cache curl
+# Expose port 8080
+EXPOSE 8080
 
-COPY --from=build /app/dist /usr/share/nginx/html
-COPY nginx.conf /etc/nginx/conf.d/default.conf
-
-EXPOSE 80
-
-CMD ["nginx", "-g", "daemon off;"]
+# Run the application
+CMD ["npm", "run", "preview"]