Add initial Django project structure with cleaning app

- Created .gitignore to exclude Python-generated files and virtual environments.
- Added .python-version to specify Python version 3.13.
- Implemented models for Client, Brigade, Service, Order, and CompletedWork.
- Created Django admin configurations for managing models.
- Added management command to seed the database with test data.
- Created initial migrations for the models.
- Developed views and templates for listing and detailing orders, clients, and brigades.
- Set up URL routing for the cleaning app.
- Configured Django settings and WSGI/ASGI entry points.
- Added basic test structure in tests.py.
- Included project metadata in pyproject.toml and uv.lock.

.python-version

@@ -0,0 +1 @@
+3.13