Free DuckDuckGo search for the DeepSeek Harness

Key features

• packages/dsh-web-search-duckduckgo/ — the implementation package: a WebSearchProvider (id duckduckgo) registered into ctx.web, plus the model-facing web_search_ddg tool that calls the provider directly.
• the bundle patch composes the plugin tree over an empty root, so the web-search-duckduckgo row is an ordinary peer of every other DSH row.
• It declares no dsh.bundle, so it is not installed as a composition layer by itself.
• packages/dsh-web-search-duckduckgo-bundle/ — the installable bundle: it declares dsh.bundle.patch, and its cordis.patch.yml inserts one web-search-duckduckgo row.
• The row points at the bundle's own entry (the bundle entry re-exports the embedded implementation package), so the packed artifact is self-contained — bundleDependencies packs the implementation package (with schemastery/cosmokit) into the tarball.