RC: (upload) astro initial structure

Dockerfile

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+# Stage 1: Build the Astro project
+FROM node:22-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+# Stage 2: Serve with Nginx
+FROM nginx:alpine
+RUN rm -rf /usr/share/nginx/html/*
+# Copy the Astro output from the builder stage
+COPY --from=builder /app/dist /usr/share/nginx/html
+# Expose port 80 for your Helm chart / Traefik to pick up
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]