xby-arxiv-paper-search: DeepSeek Harness Paper Search and Parsing Tool

`xby-arxiv-paper-search` is a plugin integrated into DSH, designed to simplify the process of searching for and parsing papers in the AI field. It provides core functions such as setting API keys, performing paper searches, retrieving the latest AI papers, obtaining PDF links, and parsing paper content. Users must specify `--profile web` during installation and configure the API key before use. It effectively reduces manual operations from literature acquisition to content processing, making it suitable for agent development scenarios that require integrating the latest academic research.