Update project configuration and dependencies
- Added .mypy_cache and .cursor to .gitignore.
- Changed asyncio_default_fixture_loop_scope and asyncio_default_test_loop_scope to "session" in pyproject.toml.
- Updated e2e testing dependencies in requirements-dev.txt, replacing fakeredis and mongomock with pytest-httpserver.
- Updated requirements.txt to use sientia_do instead of a specific git commit.
- Modified sonar-project.properties to remove a file from coverage exclusions.
- Enhanced E2E test fixtures in e2e/conftest.py for better container management.
- Cleaned up e2e test files related to CoreScouter and PIWebAPIScouter workflows.
Update .gitignore and refactor metrics.py, activities.py, and gates.py for improved clarity and consistency. Added coverage.xml and cache directories to .gitignore. Standardized string formatting and parameter handling in metrics and activities classes, enhancing code readability. Removed the deprecated faker.py file and adjusted related tests accordingly.
