feat: add node browser proxy routing

docs/tools/browser.md

@@ -166,6 +166,19 @@ Clawdbot preserves the auth when calling `/json/*` endpoints and when connecting
 to the CDP WebSocket. Prefer environment variables or secrets managers for
 tokens instead of committing them to config files.
 
+### Node browser proxy (zero-config default)
+
+If you run a **node host** on the machine that has your browser, Clawdbot can
+auto-route browser tool calls to that node without any custom `controlUrl`
+setup. This is the default path for remote gateways.
+
+Notes:
+- The node host exposes its local browser control server via a **proxy command**.
+- Profiles come from the node’s own `browser.profiles` config (same as local).
+- Disable if you don’t want it:
+  - On the node: `nodeHost.browserProxy.enabled=false`
+  - On the gateway: `gateway.nodes.browser.mode="off"`
+
 ### Browserless (hosted remote CDP)
 
 [Browserless](https://browserless.io) is a hosted Chromium service that exposes