Django-cmd

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* Use the ``pyproject.toml`` directory as the path
when discovered by walking up the tree.

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* Remove accidentally added debug print.
* Add ruff linting and print checking.

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* Walk up the tree to find ``pyproject.toml``.

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* Support configuration when using
the built-in ``django-admin`` command.

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* Add the directory to the Python path
if the settings module from the configuration file
is the same as it is in the environment.
This allows ``django runserver`` to work.

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* Automatically add the directory to the Python path
when a configuration file is found.