Adds Dockerfile, docker-compose, and updates README.

Dockerfile

@@ -0,0 +1,10 @@
+FROM oven/bun:alpine
+
+WORKDIR /app
+
+COPY . .
+RUN apk add git && bun install && bun run build && rm -rf .git
+
+ENV NODE_ENV=production
+
+CMD ["bun", "start"]