dsh-surfing-plugin: Integrating Self-Hosted SearXNG and Crawl4AI for DSH

dsh-surfing-plugin, maintained by cyijun, registers two providers, surfing-searxng and surfing-crawl4ai, with DeepSeek Harness's ctx.web, interfacing with self-hosted SearXNG search and Crawl4AI crawling, respectively. The native web_search and web_fetch tools retain their original names, parameters, and timeout behaviors. It requires Node.js ^22.19.0 or >=24.0.0, DSH >=0.1.0-rc.6, and configuration of endpoints and authentication via environment variables or cordis.patch.yml. This plugin is ideal for DSH developers seeking full control over their networking backend.