- Introduced PartnerDepotId and PartnerDepot navigation to ShippingDocument and IShippingDocument, loaded only for EKÁER scenarios.
- Updated ShippingToEkaerMapper to leave CarrierName empty for outgoing shipments.
- Enhanced GridShippingDocument.razor: added PartnerDepot column with edit/display templates, improved Partner selection with cascade depot logic, and optimized partner lookup.
- Fixed Ekaer tab and count logic to use NeedsCompletion filter.
- Minor code and comment cleanups.
Loretta