dsh-update-checker: An Update Checking and One-Click Updating Plugin for DeepSeek Harness

dsh-update-checker is a DeepSeek Harness (DSH) Web GUI plugin maintained by Airmetro, designed to consolidate the update processes for the main program and third-party plugins from scattered commands into a unified interface. The core functionalities of this plugin include: checking the version status of the DSH main program (by comparing with npm latest) and unofficial plugins (via cross-referencing between npm and GitHub sources); providing full lifecycle update management with features such as dry-run protection, automatic backups, adaptive installation, and post-installation verification; supporting real rollback interfaces and backup list viewing; and ensuring service recovery through a restart watchdog based on PID and port detection. Additionally, the plugin offers multilingual status prompts in the GUI and implements loopback origin and confirmation mechanisms for write operations.