dsh-chat-manager: DeepSeek Harness Chat History and Session Manager

`dsh-chat-manager` is a DeepSeek Harness plugin designed to address the challenges of managing archived sessions. It offers archived session browsing, multi-dimensional search, one-click restore, and secure permanent deletion, with a native menu-based confirmation step to prevent accidental deletion. The package name is `dsh-chat-manager@1.5.3`. Users should note that permanent deletion is irreversible and does not clean up other data. The project is released under the MIT License and has no affiliation with DeepSeek.