dsh-plugin-browser: DSH Plugin Marketplace Entry and Installed Plugins Panel

`dsh-plugin-browser` is a DSH plugin designed to unify the management of plugin status queries and administration. It integrates the awesome-dsh-plugin community directory browsing, the loading status check of plugins in the current profile, and installation, update, and uninstallation operations executed via `dshmarket` into a single panel. This plugin provides the agent with two tools, `list_plugins` and `browse_plugin_market`, enabling direct querying of the plugin list or keyword-based search with status viewing during conversations. The GUI interface includes "Market" and "Installed Plugins" tabs, supporting category filtering, search, and status display, and requires `dshmarket` for executing change operations. Additionally, the plugin offers HTT