Implement the core logic for applying discount codes during price
calculation and introduce the WalletService. This includes updating
the PriceCalculatorService to validate and apply discounts,
incrementing usage counts, and adding a Filament resource for
managing discount codes via the admin panel.
Additionally, refactor TrackingDataImport to use OnEachRow for better
memory management during large Excel imports.
Implement a new Artisan command and Excel import logic to handle tracking data ingestion. This includes registering new commands in the application bootstrap and providing several utility scripts for debugging and testing the import process.
- Add `ImportTrackingData` command and `TrackingDataImport` class
- Register `ImportShippingRates` and `ImportTrackingData` in `app.php`
- Add `ifnex:import:tracking` closure command in `console.php`
- Include various debugging and testing scripts for Excel and shipment verification
