dsh-red-packet: Red Packet Etiquette

`dsh-red-packet` is a DeepSeek Harness (DSH) plugin maintained by uckkk that focuses on providing family holiday preparation solutions and can run without network requests. Implemented in pure Node.js, it falls under the "Fun Costume" category. Its core feature is generating etiquette suggestions through the `red_packet` tool based on parameters. Users can install it using the official command `dsh plugin add github:uckkk/dsh-red-packet`. It is suitable for offline environments or scenarios with strict network request restrictions, making it a lightweight solution for handling holiday etiquette.