dsh-mcp-market: Plugin marketplace for one-click MCP server installation in DeepSeek Harness

# Preface When developing agents using DeepSeek Harness (DSH), the typical workflow for integrating an MCP server involves: locating the package name or URL, opening the profile configuration file, manually writing a YAML snippet, restarting, and then verifying that the tool appears to the model. Typos in the package name, or if the package has been delisted from npm, are often only caught when runtime errors occur. DSH operates on the philosophy that "everything is a plugin," and this workflow can be automated via plugins as well. The dsh-mcp-market introduced below accomplishes exactly this: moving the "discover MCP server → fill in configuration → activate" process into a web interface, so the model can utilize the new tool immediately without requiring a restart after installation. # What is dsh-mcp-m