update docker files

Dockerfile.prod

@@ -0,0 +1,33 @@
+# Multi-stage build for production
+# Stage 1: Build the React application
+FROM node:20-alpine AS build
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package.json yarn.lock ./
+
+# Install dependencies
+RUN yarn install --frozen-lockfile
+
+# Copy source code
+COPY . .
+
+# Build the application for production
+RUN yarn build
+
+# Stage 2: Serve with nginx
+FROM nginx:alpine
+
+# Copy custom nginx configuration
+COPY nginx.conf /etc/nginx/nginx.conf
+
+# Copy built application from build stage
+COPY --from=build /app/build /usr/share/nginx/html
+
+# Expose port 80
+EXPOSE 80
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]