added docker

Dockerfile

@@ -1,11 +1,14 @@
-FROM node:22-alpine AS build
+# Use a Node image to build the Astro project
+FROM node:20-alpine AS builder
 WORKDIR /app
 COPY package*.json ./
-RUN npm ci
 COPY . .
+RUN npm install
 RUN npm run build
 
-FROM nginx:alpine AS runtime
+# Use Nginx to serve the static site
+FROM nginx:alpine AS production
+COPY --from=builder /app/dist /usr/share/nginx/html
 COPY ./nginx.conf /etc/nginx/nginx.conf
-COPY --from=build /app/dist /usr/share/nginx/html
-EXPOSE 8080
+EXPOSE 3000
+CMD ["nginx", "-g", "daemon off;"]