ci: restructure Python test paths and add asyncio configuration

- Changed test paths from apps/coordinator-api and apps/blockchain-node to tests/archived_phase_tests and tests/cross_phase
- Removed --ignore flags for tests/production and test_confidential*.py files
- Added asyncio_mode = auto and asyncio_default_fixture_loop_scope = function to pytest.ini for better async test handling

pytest.ini

@@ -4,6 +4,8 @@ python_files = test_*.py
 python_classes = Test*
 python_functions = test_*
 addopts = -v --tb=short
+asyncio_mode = auto
+asyncio_default_fixture_loop_scope = function
 markers =
     slow: marks tests as slow
     integration: marks tests as integration tests