Added ShippingDate and Partner fields to EkaerHistory with ToonDescription metadata. Introduced SetSummary method in FruitBankEkaerService and interface for setting these fields. Updated EkaerHistoryMapping with a future-use Comment property. Extended FullProcessModel for tests. Displayed new fields in GridEkaerHistory.razor as read-only columns.
Refactored EKÁER declaration logic to allow one EkaerHistory to reference multiple source documents via a new EkaerHistoryMapping junction table. Removed ForeignKey from EkaerHistory and updated all usages to use the Mappings collection. Updated service, controller, SignalR, and client interfaces to operate by EkaerHistoryId. Adjusted grid UI to display all mapped source IDs. Added EkaerHistoryMapping entity and updated documentation, constants, and ToonDescription attributes accordingly.
Loretta