- Removed the DockerEnvManager and SSHKeyHandler classes from docker_env/manager.py and docker_env/ssh_handler.py.
- Added a new example usage script example.py demonstrating the module's functionality.
- Deleted outdated examples.py and replaced it with a more concise example.
- Introduced a new pyproject.toml for project metadata and dependency management.
- Updated setup.py to reflect the new package name and versioning.
- Removed old test files and their associated test cases to streamline the codebase.