- Introduced E2E tests for admin user and organization management workflows: user listing, creation, updates, bulk actions, and organization membership management.
- Added comprehensive tests for organization CRUD operations, membership visibility, roles, and permission validation.
- Expanded fixtures for superuser and member setup to streamline testing of admin-specific operations.
- Verified pagination, filtering, and action consistency across admin endpoints.
- Reformatted assertions in `test_database_workflows.py` for better readability.
- Refactored `postgres_url` transformation logic in `conftest.py` for improved clarity.
- Adjusted import handling in `test_api_contracts.py` to streamline usage of Hypothesis and Schemathesis libraries.
- Introduced make commands for E2E tests using Testcontainers and Schemathesis.
- Updated `.env.demo` with configurable OAuth settings for Google and GitHub.
- Enhanced `README.md` with updated environment setup instructions.
- Added E2E testing dependencies and markers in `pyproject.toml` for real PostgreSQL and API contract validation.
- Included new libraries (`arrow`, `attrs`, `docker`, etc.) for testing and schema validation workflows.
