fix(security): enforce sandbox bridge auth

src/browser/client-fetch.ts

@@ -1,5 +1,6 @@
 import { formatCliCommand } from "../cli/command-format.js";
 import { loadConfig } from "../config/config.js";
+import { getBridgeAuthForPort } from "./bridge-auth-registry.js";
 import { resolveBrowserControlAuth } from "./control-auth.js";
 import {
   createBrowserControlContext,
@@ -37,13 +38,36 @@ function withLoopbackBrowserAuth(
     const auth = resolveBrowserControlAuth(cfg);
     if (auth.token) {
       headers.set("Authorization", `Bearer ${auth.token}`);
-    } else if (auth.password) {
+      return { ...init, headers };
+    }
+    if (auth.password) {
       headers.set("x-openclaw-password", auth.password);
+      return { ...init, headers };
     }
   } catch {
     // ignore config/auth lookup failures and continue without auth headers
   }
 
+  // Sandbox bridge servers can run with per-process ephemeral auth on dynamic ports.
+  // Fall back to the in-memory registry if config auth is not available.
+  try {
+    const parsed = new URL(url);
+    const port =
+      parsed.port && Number.parseInt(parsed.port, 10) > 0
+        ? Number.parseInt(parsed.port, 10)
+        : parsed.protocol === "https:"
+          ? 443
+          : 80;
+    const bridgeAuth = getBridgeAuthForPort(port);
+    if (bridgeAuth?.token) {
+      headers.set("Authorization", `Bearer ${bridgeAuth.token}`);
+    } else if (bridgeAuth?.password) {
+      headers.set("x-openclaw-password", bridgeAuth.password);
+    }
+  } catch {
+    // ignore
+  }
+
   return { ...init, headers };
 }