⚙️ Set pytest asyncio fixture scope to function level

Prevents test isolation issues where async fixtures from one test
could interfere with another. Function scope ensures each test gets
fresh async event loop fixtures for reliable test execution.

Author: Nick Sullivan

pyproject.toml

@@ -1,5 +1,6 @@
 [tool.pytest.ini_options]
 python_files = "tests.py test_*.py"
+asyncio_default_fixture_loop_scope = "function"
 # Disable warnings from third-party libraries
 filterwarnings = "ignore::DeprecationWarning"