dsh-agent-sync: Sync local AI agents' MCP servers and Skills to DeepSeek Harness

`dsh-agent-sync` is an MIT-licensed plugin for DeepSeek Harness (DSH) designed to eliminate redundancy for pre-configured MCP servers and Skills from other local AI agents within DSH. Supporting over 20 AI agents, its core functions include automatically scanning local configurations, writing MCP servers to DSH profiles with a single click, and copying or linking Skills to global or workspace directories. The plugin provides comprehensive MCP and Skills management capabilities, such as enabling/disabling, deleting, grouping, migrating, and manual addition (supporting multiple file formats). Through its settings, the plugin allows users to configure the synchronization method (copy/link) and target profiles.