curl --location --request GET '/documents/2' \
--header 'X-User-ID: {{X-User-ID}}'{
"document_id": 1,
"filename": "机器学习入门.pdf",
"file_type": "pdf",
"file_size": 2097152,
"status": "completed",
"chunk_count": 45,
"error_message": null,
"created_at": "2024-01-15T10:30:00Z",
"updated_at": "2024-01-15T10:32:00Z"
}