chore(audit): create empty tests/test_code_path_audit_live_gui.py v2

Module docstring + skipif gate on CODE_PATH_AUDIT_LIVE_GUI=1.
The 2 live_gui tests go in Phase 11.

tests/test_code_path_audit_live_gui.py

@@ -0,0 +1,24 @@
+"""Live_gui E2E tests for src.code_path_audit v2 (opt-in).
+
+These tests are gated on the CODE_PATH_AUDIT_LIVE_GUI env var.
+Set CODE_PATH_AUDIT_LIVE_GUI=1 to enable. The tests use the
+session-scoped live_gui fixture from tests/conftest.py to spin
+up the full app with --enable-test-hooks on port 8999, then
+invoke the code_path_audit_v2 MCP tool via ApiHookClient.
+
+Per the live_gui test authoring contract (see
+docs/guide_testing.md#authoring-robust-live_gui-tests-dont-assume-clean-state),
+the tests use poll-until-state-visible rather than time.sleep,
+because the v2 audit's MCP tool may run async via
+_pending_gui_tasks dispatch.
+"""
+from __future__ import annotations
+import os
+
+import pytest
+
+LIVE_GUI_ENABLED = os.environ.get("CODE_PATH_AUDIT_LIVE_GUI") == "1"
+pytestmark = pytest.mark.skipif(
+ not LIVE_GUI_ENABLED,
+ reason="live_gui E2E test; set CODE_PATH_AUDIT_LIVE_GUI=1 to enable",
+)