Create an AI-assisted workflow that extracts selected fields from invoices and business documents into structured data. The system should reduce manual work while keeping human review available for low-confidence results. Accuracy, traceability, and practical handling of different document layouts are key requirements. The successful freelancer will be expected to work independently, share progress at agreed checkpoints, and raise questions early when a requirement needs clarification. All submitted work should be original, well organized, and ready for practical use after reasonable review.