Add NHN Cloud API integration with async task support

- NHN Cloud API packages: token, vpc, compute, nks, storage
- REST API endpoints with Swagger documentation
- Async task processing for long-running operations
- CORS configuration for frontend integration
- Enhanced logging for debugging API calls

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

requirements.txt

@@ -0,0 +1,29 @@
+asgiref==3.8.1
+certifi==2025.1.31
+cffi==1.17.1
+charset-normalizer==3.4.1
+coreapi==2.3.3
+coreschema==0.0.4
+Django==4.2.14
+django-cors-headers==4.7.0
+djangorestframework==3.16.0
+djangorestframework_simplejwt==5.5.0
+drf-yasg==1.21.10
+gunicorn==20.1.0
+idna==3.10
+inflection==0.5.1
+itypes==1.2.0
+Jinja2==3.1.5
+MarkupSafe==3.0.2
+mysqlclient==2.2.7
+packaging==24.2
+pycparser==2.22
+PyJWT==2.9.0
+python-dotenv==1.0.1
+pytz==2025.1
+PyYAML==6.0.2
+requests==2.32.3
+sqlparse==0.5.3
+typing_extensions==4.12.2
+uritemplate==4.1.1
+urllib3==2.3.0