feat(api): standardize REST contracts and auth

tests/conftest.py

@@ -13,6 +13,12 @@ PROJECT_ROOT = Path(__file__).resolve().parents[1]
 sys.path.insert(0, str(PROJECT_ROOT))
 
 
+@pytest.fixture
+def anyio_backend():
+    """The delivery test environment supports asyncio, not the optional Trio backend."""
+    return "asyncio"
+
+
 def run_this_test(test_file):
     """自定义函数：运行单个测试文件（类似pytest）"""
     # 提取测试文件名（无扩展名）