add Dockerfile and docker-compose.yml

Dockerfile

@@ -0,0 +1,16 @@
+# syntax=docker/dockerfile:1
+
+FROM node:20-alpine AS builder
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+RUN npm ci
+
+COPY . .
+RUN npm run build
+
+FROM nginx:1.27-alpine
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]