web_search: add searxng provider

docs/start/getting-started.md

@@ -44,9 +44,8 @@ run on host, set an explicit per-agent override:
 
 - Node `>=22`
 - `pnpm` (optional; recommended if you build from source)
-- **Recommended:** Brave Search API key for web search. Easiest path:
-  `openclaw configure --section web` (stores `tools.web.search.apiKey`).
-  See [Web tools](/tools/web).
+- **Recommended:** configure a `web_search` provider (Brave, Perplexity, or SearXNG) for web search.
+  Easiest path: `openclaw configure --section web`. See [Web tools](/tools/web).
 
 macOS: if you plan to build the apps, install Xcode / CLT. For the CLI + gateway only, Node is enough.
 Windows: use **WSL2** (Ubuntu recommended). WSL2 is strongly recommended; native Windows is untested, more problematic, and has poorer tool compatibility. Install WSL2 first, then run the Linux steps inside WSL. See [Windows (WSL2)](/platforms/windows).

docs/start/wizard.md

@@ -27,9 +27,9 @@ Follow‑up reconfiguration:
 openclaw configure
 ```
 
-Recommended: set up a Brave Search API key so the agent can use `web_search`
-(`web_fetch` works without a key). Easiest path: `openclaw configure --section web`
-which stores `tools.web.search.apiKey`. Docs: [Web tools](/tools/web).
+Recommended: set up a `web_search` provider (Brave, Perplexity, or SearXNG) so the
+agent can search the web when needed (`web_fetch` works without a key). Easiest
+path: `openclaw configure --section web`. Docs: [Web tools](/tools/web).
 
 ## QuickStart vs Advanced