dsh-document-reader: Fast File Reading Plugin

dsh-document-reader is a client-side plugin for DeepSeek Harness (DSH), designed to address the pain point of manually copying and pasting document content in the web interface and improve interaction efficiency. The plugin supports reading the content of various file formats, such as PDF, Word, and PPT, directly via the upload button or file drag-and-drop. Once installed, users can easily import documents into the chat input field. Note that the plugin only supports text extraction and is incompatible with scanned PDFs and legacy binary formats. It also requires a newer browser environment.