dsh-ui-quote-selection: Quote Text Selection into Input Box in DSH Web Chat

dsh-ui-quote-selection is a DSH Web client plugin maintained by nekogpt, licensed under the MIT License, designed to address the tedious copy-paste process when quoting specific text in chat. This plugin allows users to select a portion of text in a message and quote it into the input box with a single click. The input box displays only a brief preview to avoid long text occupying space, but automatically includes the full original text when sending the message. Users can hover over the quoted content to view it, press the backspace key to delete it, and add multiple quotes within a single message. The button text automatically switches between Chinese and English based on the interface language. The plugin leverages DSH's built-in functionality without modifying core code, is compatible with DeepSeek Harness Web, and has been tested on version `0.1.0-rc.6`. Installation requires executing `dsh plugin