added react build

frontend/Dockerfile

@@ -1,12 +1,19 @@
-FROM node:20-alpine
+FROM node:22-alpine AS builder
 
 WORKDIR /app
 
-COPY package*.json ./
-RUN npm install
+COPY package.json package-lock.json ./
+RUN npm ci
 
 COPY . .
+RUN npm run build
 
-EXPOSE 7002
+FROM nginx:alpine AS runner
 
-CMD ["npm", "run", "dev"]
+WORKDIR /usr/share/nginx/html
+COPY --from=builder /app/dist .
+
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]