fix: disable auth in e2e tests to avoid selector conflicts

The auth sidebar dropdown interferes with _wait_for_entrypoints which
uses document.querySelector('select') and picks up the auth select first.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: cristipufu

tests/e2e/conftest.py

@@ -1,5 +1,6 @@
 """E2E-specific fixtures for Textual TUI and web server tests."""
 
+import os
 import socket
 import threading
 import time
@@ -46,6 +47,10 @@ def live_server_url():
     trace_mgr = UiPathTraceManager()
     port = _find_free_port()
 
+    # Disable auth in tests so the sidebar auth dropdown doesn't interfere
+    # with selectors that look for entrypoint dropdowns.
+    os.environ["UIPATH_AUTH_ENABLED"] = "false"
+
     server_obj = UiPathDeveloperServer(
         runtime_factory=factory,
         trace_manager=trace_mgr,