dsh-migrate: Migrating Other Agents' Conversation Logs and Memory to DeepSeek Harness

`dsh-migrate` is an open-source plugin for DeepSeek Harness (DSH) designed to prevent the loss of conversation history when switching AI agents. It supports reading chat logs and memory from multiple mainstream agents, such as Claude, Cursor, and ChatGPT, and converts them into DSH’s native format. The plugin provides both a Web UI (`/migrate`) and a command-line tool, allowing users to import, preview, and retrieve historical sessions. Imported logs preserve tool calls and reasoning processes and are marked as “seed history,” enabling seamless context continuity. The plugin operates on source data in a read-only manner and retains only textual content without modifying the original data.