feat(search): add local brave mcp search skill

TOOLS.md

@@ -56,6 +56,7 @@ Skills are shared. Your setup is yours. Keeping them apart means you can update
     - `http://192.168.153.117:18803`
   - API: JSON enabled (`search.formats` includes `html,json`)
   - Runtime env: `SEARXNG_URL=http://192.168.153.113:18803` (workspace `.env`)
+  - Role: preferred local-first search backend
   - Smoke test:
     - `skills/searxng-local-search/scripts/smoke.sh openclaw`
 
@@ -75,7 +76,9 @@ Skills are shared. Your setup is yours. Keeping them apart means you can update
   - URL(s):
     - `http://192.168.153.113:18802`
     - `http://192.168.153.117:18802`
+  - MCP endpoint: `http://192.168.153.113:18802/mcp`
   - Note: Will confirmed Brave search port is `18802` on 2026-03-10.
+  - Verified 2026-03-10: reachable via `mcporter` as tool `brave_web_search`.
 
 ### Embeddings (local)