merge: integrate remote MQTT routing with seat-scoped dynamic modes

tests/e2e/test_mode_rail_browser.py

@@ -10,6 +10,7 @@ from http import HTTPStatus
 from http.server import ThreadingHTTPServer
 from pathlib import Path
 from unittest.mock import patch
+from urllib.parse import urlparse
 
 import pytest
 
@@ -52,7 +53,13 @@ def test_mode_rail_real_browser_interactions(tmp_path: Path) -> None:
     class BrowserHandler(SeatDemoHandler):
         auth = AuthRuntime(AuthConfig(False, "", "", b"", 3600, 5, 300, 120, False))
 
-        def do_POST(self) -> None:  # noqa: N802
+        def do_GET(self) -> None:
+            if urlparse(self.path).path in {"/api/hardware/seat-state", "/api/hardware/vehicle-state"}:
+                self._json({"status": "unavailable", "hardware_execution_allowed": False})
+                return
+            super().do_GET()
+
+        def do_POST(self) -> None:
             # Only GET reaches this test server. Browser requests to the
             # assistant are intercepted; unexpected writes fail closed.
             self._json({"error": "browser_test_write_forbidden"}, HTTPStatus.FORBIDDEN)