dsh-session-pause: Pausing the Current Round in DSH and Supporting Resume After Restart

`watericetangcw/dsh-session-pause` is a community web plugin for DSH, designed to achieve graceful suspension and resumption of sessions without terminating processes or introducing new storage formats. It allows users to pause at step boundaries during the current round of execution, fully preserving messages, tool calls, and context, and to resume later or even after a DSH restart. The plugin operates through a newly added pause button and the slash commands `/pause`, `/pause-cancel`, and `/resume`, with support for canceling pause requests. Installation requires the `dsh plugin add` command, and the environment must have Node.js version ^22.19.0 or higher; direct installation via npm is not recommended. This plugin is licensed under MIT and does not modify the DSH core code, making it suitable for scenarios requiring—