@edwindigital/dsh-web-search-microsoft-webiq: Microsoft Web IQ Search integration for DeepSeek Harness

`@edwindigital/dsh-web-search-microsoft-webiq` is an MIT-licensed plugin designed for DeepSeek Harness (DSH). It is intended to switch the search backend for `ctx.web` to Microsoft Web IQ while maintaining the Agent side's use of the standard `web_search` tool, without introducing new tools visible to the model. The plugin calls the Web Search v3 REST endpoint to map query results to `WebSearchResult` and provides a configuration card on the settings page. It only takes effect when manually toggled on or explicitly configured via `web.searchProvider: microsoft-webiq`, and will not silently...