feat: dockerize client (nginx) and server (node) with docker-compose

client/Dockerfile

@@ -0,0 +1,19 @@
+# ── Stage 1 : build ──────────────────────────────────────────────────────────
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+COPY package.json package-lock.json* ./
+RUN npm ci
+
+COPY . .
+RUN npm run build
+
+# ── Stage 2 : serve with nginx ────────────────────────────────────────────────
+FROM nginx:1.27-alpine
+
+COPY --from=builder /app/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]