feat: add docker support

Dockerfile

@@ -0,0 +1,20 @@
+FROM node:18-alpine AS builder
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+RUN npm install --frozen-lockfile
+
+COPY . .
+RUN npm run build
+
+FROM node:18-alpine AS runner
+
+WORKDIR /app
+
+COPY --from=builder /app/.output .output
+COPY --from=builder /app/node_modules node_modules
+COPY --from=builder /app/package.json .
+
+EXPOSE 3000
+CMD ["node", ".output/server/index.mjs"]