Box Management UI

[vivjd]

Goal:
Allow admins to manage boxes and view their contents without physically opening them.

Tasks:

• Build the "Box Management" view in the Admin Dashboard.
• Implement logic so clicking a box reveals a list of items inside it.
• (Optional) Add a button to "Print Box Label" (Barcode/QR for the box ID).

Acceptance Criteria:

• Admin can create a new Box record.
• Admin can view a list of boxes and see the count of items inside each.