feat: add docker support

Dockerfile

@@ -0,0 +1,23 @@
+FROM node:20-alpine AS build
+
+WORKDIR /app
+
+COPY package.json package-lock.json tsconfig.json ./
+COPY src ./src
+
+RUN npm ci
+RUN npm run build
+
+FROM node:20-alpine AS runtime
+
+WORKDIR /app
+ENV NODE_ENV=production
+ENV HOST=0.0.0.0
+ENV PORT=3000
+
+COPY package.json ./
+COPY --from=build /app/dist ./dist
+
+EXPOSE 3000
+
+CMD ["node", "dist/index.js"]