Adds DJF to freight.payments_currency_enum (migration 3860000000000,
alone in its own migration per Postgres's ADD VALUE-in-a-transaction
restriction) and to manual_payment_settings (djf_enabled column,
migration 3870000000000, default true).
Replaces the binary ETB/USD assumptions that would have silently
mispriced or discarded a DJF booking:
- booking-pricing / contract-pricing: usdToEtb scalar -> a rate table
keyed by source currency (ExchangeService.getRateTable), so a
contract-frozen rate converts into whatever currency the booking is
paid in instead of being dropped when neither leg is ETB or USD.
- warehouse-fee / booking-wagon-cancellation: normalizeCurrency no
longer coerces anything non-ETB to USD.
- additional-charge: convertAmount no longer bails out for a currency
that isn't literally ETB or USD.
- manual-payment-settings: isEnabled/enabledCurrencies cover DJF.
Widens the three @IsIn(['ETB','USD']) DTO validators, and adds DJF to
the export/report currency filter option lists.
Claude-Session: https://claude.ai/code/session_01CZy77vCWhka3pnmVF9NDkL
- Introduced StampUpload component for uploading company stamp images.
- Integrated stamp upload in contract signing modal, supporting PNG and JPG formats.
- Implemented validation for file type and size (max 5 MB).
- Added visual feedback for drag-and-drop functionality.
- Updated contract-related pages to handle duplicate contract alerts and pricing notices.
- Enhanced contract expiry management with a nightly sweep service.
- Added unit tests for new features and updated existing tests for contract handling.
- Added functionality to move containers between wagons in the train scheduling system.
- Introduced API endpoint and service method to handle container movement.
- Updated component to support drag-and-drop for rearranging containers.
- Enhanced to allow moving containers to other wagons via a context menu.
- Implemented UI feedback for container movement actions, including loading states and success/error notifications.
- Updated relevant types and constants to accommodate new container movement logic.
- Added tests for the rule engine to ensure proper handling of hazardous bookings.
- Added ContainerValidationService to handle 20ft weight-pairing logic.
- Introduced validate20ftWeightPairing utility function to check weight differences.
- Updated BookingPricingService to include overweight line details and pairing errors in price response.
- Enhanced BookingTransitionService to reject submissions with unpairable 20ft containers.
- Created ShipmentValidation interface for pre-submit validation of container contracts.
- Integrated shipment validation into the contract booking process, providing warnings for overweight containers and hard blocks for pairing errors.
- Updated front-end components to display validation results and prevent submission when errors are present.
