dsh-dev-http-tools: Web Technology Entry Query Tool

The `dsh-dev-http-tools` plugin for DeepSeek Harness (DSH) is used to list and query Web technology entries without network dependencies, making it suitable for static data scenarios. It provides two core features, `list_webtech` and `get_webtech`, and depends on `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools`. Users can install it via a command and invoke it in a DSH session; it is recommended to inspect the source code before installation.