add dockerfile

Dockerfile

@@ -0,0 +1,28 @@
+# cat Dockerfile
+# Stage 1: Builder
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Install pnpm
+RUN npm install -g pnpm@9.0.0
+
+# Copy files
+COPY pnpm-lock.yaml ./
+COPY package.json ./
+COPY turbo.json ./
+COPY . .
+
+# Install deps and build
+RUN pnpm install --frozen-lockfile
+RUN pnpm build
+
+# Stage 2: Runtime
+FROM node:20-alpine
+
+WORKDIR /app
+
+COPY --from=builder /app ./
+
+CMD ["node", "apps/web/server.js"]
+