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>

nhn_prj/urls.py

@@ -0,0 +1,34 @@
+"""
+URL configuration for nhn_prj project.
+"""
+
+from django.contrib import admin
+from django.urls import path, include
+from rest_framework import permissions
+from drf_yasg.views import get_schema_view
+from drf_yasg import openapi
+
+schema_view = get_schema_view(
+    openapi.Info(
+        title="NHN API",
+        default_version="v1",
+        description="NHN Microservice API Documentation",
+    ),
+    public=True,
+    permission_classes=(permissions.AllowAny,),
+)
+
+urlpatterns = [
+    path("admin/", admin.site.urls),
+    path("api/nhn/", include("nhn.urls")),
+    path(
+        "swagger/",
+        schema_view.with_ui("swagger", cache_timeout=0),
+        name="schema-swagger-ui",
+    ),
+    path(
+        "swagger<format>/",
+        schema_view.without_ui(cache_timeout=0),
+        name="schema-json",
+    ),
+]