publish docker package

Dockerfile

@@ -0,0 +1,35 @@
+# syntax=docker/dockerfile:1
+
+# --- build: needs devDependencies (vite) to produce dist/client + dist/server
+FROM node:22-alpine AS build
+WORKDIR /app
+RUN npm install -g pnpm@10
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
+RUN pnpm install --frozen-lockfile
+COPY . .
+RUN pnpm build
+
+# --- deps: runtime dependencies only (express, sirv, compression, react)
+FROM node:22-alpine AS deps
+WORKDIR /app
+RUN npm install -g pnpm@10
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
+RUN pnpm install --frozen-lockfile --prod
+
+# --- runtime
+FROM node:22-alpine AS runtime
+WORKDIR /app
+ENV NODE_ENV=production
+ENV PORT=5173
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY --from=build /app/dist ./dist
+COPY package.json server.js ./
+
+EXPOSE 5173
+USER node
+
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s \
+  CMD wget -qO- "http://127.0.0.1:${PORT}/" >/dev/null || exit 1
+
+CMD ["node", "server.js"]