test(rag): mark RAG tests with clean_baseline for batch isolation

tests/test_rag_phase4_final_verify.py

@@ -12,6 +12,7 @@ sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "s
 from src import api_hook_client
 
 @pytest.mark.integration
+@pytest.mark.clean_baseline
 def test_phase4_final_verify(live_gui, live_gui_workspace):
  client = api_hook_client.ApiHookClient()
  assert client.wait_for_server(timeout=15), "Hook server did not start"

tests/test_rag_phase4_stress.py

@@ -12,6 +12,7 @@ sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "s
 from src import api_hook_client
 
 @pytest.mark.integration
+@pytest.mark.clean_baseline
 def test_rag_large_codebase_verification_sim(live_gui, live_gui_workspace):
  client = api_hook_client.ApiHookClient()
  assert client.wait_for_server(timeout=15), "Hook server did not start"