dsh-session-import: Cross-tool Session Migration Plugin

`dsh-session-import` is an MIT-licensed DeepSeek Harness (dsh) plugin maintained by devmom, designed to address the fragmentation of multi-agent tool sessions and enable unified cross-platform session migration. The plugin supports importing sessions from over 15 tools, such as ChatGPT, Claude Code, and Cursor, converting them into native dsh logs for persistence to ensure they can be rendered as-is and continued in the Web UI. It also features bidirectional export capabilities, supporting the export of dsh sessions to common formats such as JSON and Markdown. The plugin offers privacy masking detection (e.g., for API keys and ID cards) and knowledge extraction functions to deposit key information into local memory. It provides rich interaction entry points, including Web...