curl -X POST https://n8n.paccoco.com/webhook/school/intake/upload \
  -F "document=@essay-draft.pdf" \
  -F "class_name=English 101" \
  -F "assignment_name=Essay Draft 1" \
  -F "submission_kind=homework" \
  -F "semester=Fall 2026" \
  -F "course_code=ENG101" \
  -F "paper_kind=essay" \
  -F "notes=Submitted from Telegram chat intake" \
  -F "source=telegram" \
  -F "telegram_chat_id=123456789" \
  -F "telegram_message_id=987654321"