Refactor PIWebAPIClient and Update Configuration Imports
- Removed outdated PostgreSQL, Redis, MongoDB, and API configuration functions from connectors_config.py.
- Deleted the pi_web_api_client.py file as part of the refactor.
- Updated imports in worker.py and api.py to use the new repository structure.
- Cleaned up scenarios.md by removing obsolete scenarios related to unique constraint violations.
- Commented out the specific version of the sientia-dataops-library in requirements.txt for flexibility.
Update pyproject.toml to enable automatic asyncio mode, modify pytest_asyncio fixture scopes in conftest.py for better isolation, and streamline e2e scenarios documentation in scenarios.md by removing outdated scenarios and reorganizing sections for clarity.
Update requirements-dev.txt to add E2E testing dependencies: fakeredis and mongomock for in-memory testing, and include testcontainers for PostgreSQL support.
