Improve the reliability and usability of the shipping rates import
process and update PDF document templates for better visual fidelity.
- Enhance `ImportShippingRates` command with `--clear` and `--dry-run`
options to prevent accidental data loss and allow safe testing.
- Implement error handling and statistics tracking in `ShippingRatesImport`
to capture skipped rows and import errors.
- Refactor AWB and Label PDF templates to use A4 standard dimensions
and improved CSS layouts.
- Integrate company logo into PDF headers.
- Add a new pricing inquiry page and navigation link.
- Clean up obsolete test scripts.
Refactor the shipping rate import process to support bidirectional
data handling (import/export) and implement currency conversion using
system settings. Update the price calculator to ensure valid zone
data is retrieved.
- Update `ShippingRatesImport` to handle both import and export
directions via `SimpleRateSheetImport`.
- Implement AED to IRR conversion during rate importation using
`SystemSetting`.
- Add validation for zone numbers and rate values during import.
- Enhance `PriceCalculatorService` to filter for non-zero zone values.
- Add various debug and testing scripts for pricing and data
structure verification.
