Evergreen farms (pos)

- Fixed the return request validation error by making the `returnShippingMethod` field dynamic in the backend RMA model.
- Reviewed Amazon/Flipkart replacement workflows, including doorstep exchange, two-way shipping costs, and warehouse-based replacement logistics.
- Prepared the multi-warehouse return and replacement workflow covering return destination selection, prepaid FedEx labels, warehouse notifications, quality inspection, and replacement authorization.
- Implemented the return destination selection modal with dispatched store and nearby regional warehouse options, distance, transit estimates, and shipping rate details.
- Added the return action information tooltip explaining the free replacement guarantee, return drop-off options, quality inspection process, and FedEx shipping guidelines.
- Integrated the return workflow into the order tracking, order details, and customer profile components.
- Added supporting API configurations for return destination selection and return label operations.
- Implemented the return tracking and printable/downloadable FedEx return label interface.
- Continue backend implementation for eligible return destinations, warehouse selection, return label generation, and RMA status management.
- Implement warehouse manager notifications, receiving warehouse quality inspection, and replacement dispatch authorization.
- Integrate warehouse staff dashboard functionality and synchronize return and replacement statuses with the customer order tracking timeline.

- Implemented destination-specific return inventory restocking to ensure returned products update stock only at the approved receiving warehouse, preventing unintended updates across multiple warehouses.
- Added automatic warehouse stock record creation for returned products when the destination warehouse does not have an existing stock entry.
- Implemented quarantine handling for damaged or defective returned products, keeping unsellable inventory separate from available stock.
- Added item-level duplicate restocking protection and inventory ledger tracking to maintain accurate stock movements and return transaction records.
- Researched and implemented warehouse proximity calculations using geographical coordinates and postal codes to identify the nearest suitable fulfillment warehouse based on the customer's delivery address.
- Updated warehouse allocation logic to prioritize the nearest active warehouse with sufficient stock and select alternative warehouses when the preferred location cannot fulfill the required quantity.
- Implemented multi-warehouse split fulfillment to distribute order items across different warehouse origins and calculate FedEx shipping rates for individual shipments.
- Updated the customer return workflow to remove customer-facing warehouse selection controls and establish admin-controlled return destination selection, return approval, shipping cost optimization, and FedEx return label generation.

- Added skeleton loading to Warehouse Floor Control, Picker Queue, and Packer Desk.
- Updated the Picker Queue to display one row per order with expandable product details, selected warehouse filtering, and newest orders first.
- Updated the Packer Desk to show only orders handed over by pickers, added the All tab, and sorted orders by latest first.
- Replaced the Packer dispatch action with Ready for dispatch and made Dropper Manifest Confirm Handover the final dispatch step.
- Added delivery charge tracking to show customer-paid delivery charges, actual FedEx costs, and the difference.
- Added per-parcel delivery cost storage and a Delivery Charges tab with warehouse-level totals.
- Fixed missing FedEx sandbox cost handling and added sandbox cost identification.
- Optimized API calls, database queries, and refresh behavior across Picker, Packer, and cancelled-return screens.
- Added real-time in-app notifications for warehouse managers when customers request returns.
- Improved return photo and video upload error handling and admin table handling for unavailable media files.
- Updated the return approval flow to ask whether to generate a shipping label and select the return destination.
- Updated return destination selection to display actual distances only.
- Verified TypeScript compilation, Node.js syntax, and selected backend logic using offline tests.
- Fixed the Product Analysis and Sales screen blinking issue by addressing unnecessary component remounting in the router.