dsh-shot: Adds screenshot capability to DSH, directly entering draft input upon capture.

dsh-shot is a screenshot plugin for DeepSeek Harness (maintained by EasySSHCN, version 0.1.1, MIT), with the default shortcut key Ctrl+Alt+A. It supports full-screen drag-and-select selection, the `/shot` command (including x, y, w, h rectangle parameters), the camera button in the input box, and the agent screenshot tool. Screenshots are generated locally and inserted into the draft of the current session's input box, requiring manual pressing of Enter to send. It is only supported on Windows 10/11. Tested on DSH 0.2.2-rc.1 and declared compatible with 0.2.1+. This article explains environment requirements, CLI and Desktop installation commands, profile shortcut key configuration, overlay actions (enter session/translate/OCR/copy), and privacy and security considerations.