🎉 Initial commit: Document Server MVP

✨ Features implemented:
- FastAPI backend with JWT authentication
- PostgreSQL database with async SQLAlchemy
- HTML document viewer with smart highlighting
- Note system connected to highlights (1:1 relationship)
- Bookmark system for quick navigation
- Integrated search (documents + notes)
- Tag system for document organization
- Docker containerization with Nginx

🔧 Technical stack:
- Backend: FastAPI + PostgreSQL + Redis
- Frontend: Alpine.js + Tailwind CSS
- Authentication: JWT tokens
- File handling: HTML + PDF support
- Search: Full-text search with relevance scoring

📋 Core functionality:
- Text selection → Highlight creation
- Highlight → Note attachment
- Note management with search/filtering
- Bookmark creation at scroll positions
- Document upload with metadata
- User management (admin creates accounts)

backend/Dockerfile

@@ -0,0 +1,38 @@
+FROM python:3.11-slim
+
+# 작업 디렉토리 설정
+WORKDIR /app
+
+# 시스템 패키지 업데이트 및 필요한 패키지 설치
+RUN apt-get update && apt-get install -y \
+    gcc \
+    g++ \
+    libpq-dev \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Poetry 설치
+RUN pip install poetry
+
+# Poetry 설정
+ENV POETRY_NO_INTERACTION=1 \
+    POETRY_VENV_IN_PROJECT=1 \
+    POETRY_CACHE_DIR=/tmp/poetry_cache
+
+# 의존성 파일 복사
+COPY pyproject.toml poetry.lock* ./
+
+# 의존성 설치
+RUN poetry install --only=main && rm -rf $POETRY_CACHE_DIR
+
+# 애플리케이션 코드 복사
+COPY src/ ./src/
+
+# 업로드 디렉토리 생성
+RUN mkdir -p /app/uploads
+
+# 포트 노출
+EXPOSE 8000
+
+# 애플리케이션 실행
+CMD ["poetry", "run", "uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "8000"]