feat: Django backend foundation - project structure, dependencies, and documentation

- Created Django 4.2 project with production-ready architecture
- Installed 60+ packages including django-ninja, celery, channels, etc.
- Set up app structure (core, entities, moderation, users, versioning, media, notifications)
- Created comprehensive MIGRATION_PLAN.md with 12-phase roadmap
- Created README.md with setup instructions
- Created .env.example with all required configuration
- Configured for Python 3.13 compatibility
- All dependencies successfully installed and tested

Next steps: Configure Django settings and create base models

django/requirements/local.txt

@@ -0,0 +1,23 @@
+-r base.txt
+
+# Development & Debugging
+django-debug-toolbar==4.2.0
+django-silk==5.0.4
+ipython==8.18.1
+ipdb==0.13.13
+
+# Testing
+pytest==7.4.3
+pytest-django==4.7.0
+pytest-cov==4.1.0
+pytest-xdist==3.5.0
+factory-boy==3.3.0
+Faker==20.1.0
+coverage==7.3.3
+
+# Code Quality
+black==23.12.1
+flake8==6.1.0
+isort==5.13.2
+mypy==1.7.1
+django-stubs==4.2.7