fix: add root tests/conftest.py with session-scoped event_loop

tests/conftest.py

@@ -0,0 +1,22 @@
+"""
+Root conftest for all tests.
+
+Configures pytest-asyncio to use session-scoped event loop.
+"""
+
+import asyncio
+
+import pytest
+
+
+@pytest.fixture(scope="session")
+def event_loop():
+    """
+    Create session-scoped event loop.
+    
+    This ensures all async fixtures use the SAME event loop
+    across all test files in the session.
+    """
+    loop = asyncio.get_event_loop_policy().new_event_loop()
+    yield loop
+    loop.close()

tests/e2e/conftest.py

@@ -37,14 +37,6 @@ def require_credentials(kwork_credentials):
     return kwork_credentials
 
 
-@pytest.fixture(scope="session")
-def event_loop():
-    """Create session-scoped event loop for all E2E tests."""
-    loop = asyncio.get_event_loop_policy().new_event_loop()
-    yield loop
-    loop.close()
-
-
 @pytest.fixture(scope="session")
 async def e2e_client(require_credentials):
     """