Add initial project setup with Python 3.12, environment configuration, and logging setup.

.envrc

.gitignore

django/.python-version

django/README.md

django/django_project/settings.py

django/django_project/urls.py

django/entrypoint.sh

django/icosa/api/assets.py

django/icosa/api/authentication.py

django/icosa/api/login.py

django/icosa/api/schema.py

...anagement/commands/create_asset_owner_from_django_user.py

django/icosa/views/auth.py

django/pyproject.toml

django/requirements.in

django/uv.lock

shell.nix