dsh-plugin-response-window: DeepSeek Harness (DSH) Web Plugin

The DeepSeek Harness (DSH) response window plugin is designed to address UI clutter in long multi-turn conversations caused by an excessive number of tool calls and reasoning steps. It aggregates thinking blocks and tool calls into a scrollable window with a default height of 10 lines, displaying them in segments based on text replies while keeping native responses fully visible. It supports configuring the window height, collapsed state, and other options, and is non-invasive to the React structure. The plugin is built on the dsh 0.1.5-rc contract, implemented in pure JavaScript, and is suitable for scenarios that require full traceability of intermediate processes.