Introducing the DeepSeek Harness Plugin: dsh-codex-select (Codex-Style Code Selection)

`dsh-codex-select` is a plugin designed for the DeepSeek Harness Web GUI, aiming to solve the problems of disrupted workflow caused by manual copy-and-pasting of code context and draft contamination. The plugin provides a lazily loaded file tree and a read-only viewer, allowing users to select code in the viewer or add files from the file tree. It automatically generates “reference chips” and inserts them into the input box without additional manual steps. Users can click a chip to manage the context. The plugin only supports UTF-8 text, with file sizes limited to under 1 MiB. After installation, simply restart the service to use it, significantly improving the efficiency of providing code snippets to the model.