SearXNG was a fallback search backend that added complexity without being used in practice. All search-dependent features (web search, government DB checks, vetting orchestrator, tracker mapping) now use Firecrawl exclusively. Removes the SEARCH_ENDPOINT config plumbing from probodconfig, bootstrap, Helm charts, and all callers. Signed-off-by: Émile Ré <emile@probo.com>