Victor Noguera c006d87c54 feat: add supplier scoring and UPC file analysis functionality ...

- Implemented supplier scoring logic in `supplier-scoring.ts` with functions to compute demand score, competition penalty, and overall supplier product score.
- Created unit tests for supplier scoring in `supplier-scoring.test.ts` to validate scoring logic against various scenarios.
- Developed UPC file analysis tool in `upc-file-analysis.ts` to process UPCs in batches, fetch product data from Keepa and SP-API, and generate supplier results.
- Added UPC input reading functionality in `upc-file-reader.ts` to handle XLSX and XLS files, including validation for UPC formats.
- Introduced a command-line tool in `upc-lookup.ts` for looking up UPCs and displaying detailed results or mappings to ASINs.
- Enhanced error handling and logging throughout the new modules for better traceability and user feedback.

2026-05-25 00:53:47 -04:00

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