test: 后端 pytest 测试基建 (Phase0) — 6 用例全绿 + 部署前备份SOP合规

backend/python/pytest.ini

@@ -0,0 +1,11 @@
+[pytest]
+testpaths = tests
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+asyncio_mode = auto
+asyncio_default_fixture_loop_scope = function
+addopts = -q --strict-markers
+filterwarnings =
+    ignore::DeprecationWarning
+    ignore::PendingDeprecationWarning