Manage Archived Conversations in DeepSeek Harness Settings Page with dsh-archived-conversations

`dsh-archived-conversations` is a DeepSeek Harness community plugin maintained by hxyz486 (MIT license, package version 0.1.2, with 6 stars on both the catalog page and GitHub). It provides an "Archived Conversations" entry on the Web settings page: users can view archived conversations grouped by workspaces, support expanding full text, one-click recovery, clearing archived records, permanently deleting grouped entries and local logs. The installation shall refer to the catalog page: `dsh plugin add github:hxyz486/dsh-archived-conversations`. The plugin runs with the current dsh process permissions, and the log deletion path relies on PowerShell.