fastapi[all]  # Web framework with all extras
uvicorn  # ASGI server
celery  # Task queue
redis  # Message broker for Celery
sqlalchemy  # Database ORM
pydantic  # Data validation
openai  # GPT integration for metadata extraction
pymupdf  # PDF processing, text extraction, and detection (imported as 'fitz')
requests  # HTTP client
dropbox  # Dropbox integration
azure-ai-documentintelligence  # Azure OCR service
authlib  # Authentication
python-dotenv  # Environment variables
starlette  # ASGI toolkit (used by FastAPI)
alembic  # Database migrations