Centralized EKÁER configuration in new EkaerSettings class (company info, EUR-HUF rate, thresholds). Refactored service and mapper to use EkaerSettings. Added EkaerValueCalculator for HUF value logic. Extended EkaerHistory with ConversionRate for audit. Added IsEkaer to Partner. Updated mapping, VTSZ normalization, UI grid, CSS, and tests. Added diagnostic commands to settings.local.json.
- Added GenerateEkaerXmlDocument to service and interface for EKÁER tradeCard XML generation and validation from ShippingDocument.
- Extended IShippingToEkaerMapper to support document-level mapping.
- Updated controller and SignalR client/interfaces with new methods and tags for EKÁER XML and EkaerHistory creation.
- Formatted Created/Modified columns in Blazor grids.
- Added tests for EkaerHistory creation, XML generation, and idempotency.
- Improved null-safety and argument validation in mapping logic.
- Introduced `EkaerHistory` entity with status enum and new properties for EKÁER declaration lifecycle tracking.
- Added CRUD methods for `EkaerHistory` in controller interface and SignalR client.
- Implemented `GridEkaerHistory` and `GridEkaerDetail` components for displaying EKÁER records and trade card details.
- Enhanced `TradeCardItemType` with `IId<int>` for grid compatibility.
- Improved AcSignalRDataSource to skip server refresh for tagless/local data sources.
- Updated settings to include .NET 9 runtime install commands.
Loretta