- 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.
- Introduced `useClaude` option in `AnalysisPipelineOptions` to toggle Claude LLM usage.
- Updated `processProductChunk` and `analyzeProducts` functions to accept and handle `useClaude` parameter.
- Modified argument parsing in various scripts (`bestsellers-by-category`, `mid-range-sellers-by-category`, `top-monthly-sold-by-category`, etc.) to include `--claude` flag.
- Enhanced `analyzeProductsInternal` to differentiate between LLM providers and handle requests to Claude API.
- Added error handling for Claude API responses and ensured proper configuration for using Claude.
- Updated documentation and usage messages to reflect the new `--claude` flag.
- Updated test case to reflect changes in processing mid-range matches based on sellability.
- Modified `processCategory` function to implement strict and soft sellability gates.
- Introduced new command-line arguments for category selection and sellability gate configuration.
- Enhanced error handling and validation for new arguments.
- Improved logging for category processing and budget usage.
Introduces the capability to resolve UPCs to ASINs using the Keepa API. This includes a new `upc-file` command for processing large Excel files of UPCs, a `upc` CLI tool for quick lookups, and API endpoints for web-based integration. The analysis pipeline was refactored into a reusable module to support both standard ASIN leads and new UPC-driven workflows.
