dsh-FocusCapture: Screenshot, annotate and attach files in DSH chat

dsh-FocusCapture is a Windows client plugin developed by janehk416-alt for DeepSeek Harness. It supports screen capture via the chat button or Left Ctrl + Right Ctrl box selection, providing annotation, mosaic, and pinned image tools. It allows copying, saving, or adding the PNG to the current chat attachment draft without automatically sending. Compatible with Windows 10/11 and DSH >=0.2.2-rc.1 <0.3.0, it is recommended to extract the Bundle from the Release and install it using an absolute path. It features local processing, no telemetry, and locks the target session to prevent mis-sending.