feat: add dockerfile with the readme

Dockerfile

@@ -0,0 +1,14 @@
+FROM node:22-alpine
+
+WORKDIR /app
+RUN npm install -g @anthropic-ai/claude-code
+
+RUN apk add --no-cache bash
+
+ENV NODE_ENV=production
+ENV CLAUDE_CONFIG_DIR=/root/.claude
+
+# Ensure config directory exists
+RUN mkdir -p $CLAUDE_CONFIG_DIR
+
+ENTRYPOINT ["/bin/bash", "-c", "claude; exec /bin/bash"]