dsh-mcp-bridge: Automatically connect to MCP servers for DeepSeek Harness

`dsh-mcp-bridge` is an MIT-licensed, zero-dependency MCP client bridge plugin for DeepSeek Harness (DSH), designed to simplify the process of integrating external tools. The plugin connects to local MCP servers via standard input/output (stdio) or connects to remote servers via HTTP/SSE interfaces using `mcp-remote`. Upon successful connection, it automatically registers the tools, resources, and prompts declared by the server as callable tools for the DSH agent, using the naming format `mcp_<server>_<tool>`. Core capabilities include support for starting via local commands and configuring remote URLs, tool permission filtering (`allowTools`/`denyTools`), timeout settings, automatic exception retries (up to 3 times), and process lifecycle management. Installation can be done via `ds...`