dsh-baby-milk: Estimating Baby's Milk Intake

The DSH (DeepSeek Harness) plugin `dsh-baby-milk` is designed to provide agents with local computation capabilities and operate without an internet connection. It encapsulates baby milk estimation logic, registers the `baby_milk` tool, and returns estimated results from input parameters using a local algorithm. Implemented entirely in Node.js, it is lightweight and privacy-focused; however, its outputs are estimates only and do not constitute medical advice. Users can install it via a command, making it suitable for specific numerical calculation scenarios.