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>

Dockerfile

@@ -0,0 +1,22 @@
+FROM harbor.icurfer.com/open/python:3.10-slim-bullseye
+
+WORKDIR /usr/src/app
+
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+RUN apt-get update && apt-get install -y \
+    gcc \
+    pkg-config \
+    default-libmysqlclient-dev \
+    python-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --upgrade pip && pip install -r requirements.txt
+
+COPY . .
+
+EXPOSE 8000
+
+CMD ["gunicorn", "--workers=3", "--bind=0.0.0.0:8000", "nhn_prj.wsgi:application"]