chore(medusa, core-flows): receive item return request (#8172)

What:
* `POST /admin/returns/:id/receive-items`
* `POST /admin/returns/:id/receive-items/:action_id`
* `DELETE /admin/returns/:id/receive-items/:action_id`
* `POST /admin/returns/:id/dismiss-items`
* `POST /admin/returns/:id/dismiss-items/:action_id`
* `DELETE /admin/returns/:id/dismiss-items/:action_id`
* `POST /admin/returns/:id/receive/confirm`

CLOSES: CC-190, CC-191, CC-192, CC-193, CC-195, CC-196, CC-197

* Inventory management isn't included yet. Will add it in a next PR

packages/modules/order/src/services/__tests__/util/actions/returns.ts

@@ -298,7 +298,7 @@ describe("Order Return - Actions", function () {
           return_requested_quantity: "0",
           return_received_quantity: "1",
           return_dismissed_quantity: "1",
-          written_off_quantity: 0,
+          written_off_quantity: "1",
         },
       },
     ])

packages/modules/order/src/utils/actions/receive-damaged-return-item.ts

@@ -35,6 +35,12 @@ OrderChangeProcessing.registerActionType(
         toReturn
       )
 
+      existing.detail.written_off_quantity ??= 0
+      existing.detail.written_off_quantity = MathBN.add(
+        existing.detail.written_off_quantity,
+        action.details.quantity
+      )
+
       setActionReference(existing, action, options)
 
       if (previousEvents) {
@@ -70,6 +76,11 @@ OrderChangeProcessing.registerActionType(
         action.details.quantity
       )
 
+      existing.detail.written_off_quantity = MathBN.sub(
+        existing.detail.written_off_quantity,
+        action.details.quantity
+      )
+
       unsetActionReference(existing, action)
 
       if (previousEvents) {