dsh-free-pi: Access free-pi inference via GitHub login in DSH

dsh-free-pi is a DSH provider plugin maintained by wawaTuna. It registers free-pi's ad-sponsored, OpenAI-compatible inference as a free-pi model group, enabling access to Free Unlimited models like DeepSeek V4.1 Flash without an API key via GitHub login. This article details the installation command `dsh plugin --profile web add github:wawaTuna/dsh-free-pi`, credential paths, daily budgets, and multi-account polling based on the repository README. It also notes privacy terms regarding session and training data and clarifies that the plugin accesses local credentials and external network APIs with dsh process permissions.