fix(medusa): Rounding issues on line item adjustments (#3446)

* chores(medusa): Attempt to fix discount rounding issues

* add migration

* update entities

* apply multipler factor properly

* fix discount service

* WIP

* fix rounding issues in discounts

* fix some tests

* Exclude raw_discount_total from responses

* fix adjustments

* cleanup response

* fix

* fix draft order integration

* fix order integration

* fix order integration

* address feedback

* fix test

* Create .changeset/polite-llamas-sit.md

* remove comment

---------

Co-authored-by: Oliver Windall Juhl <59018053+olivermrbl@users.noreply.github.com>

integration-tests/api/__tests__/admin/order-edit/order-edit.js

@@ -2482,6 +2482,9 @@ describe("/admin/order-edits", () => {
       )
       expect(item2.adjustments).toHaveLength(1)
 
+      expect(item1.adjustments[0].amount).toBeCloseTo(1333, 0)
+      expect(item2.adjustments[0].amount).toBeCloseTo(667, 0)
+
       expect(response.data.order_edit).toEqual(
         expect.objectContaining({
           id: orderEditId,
@@ -2531,7 +2534,6 @@ describe("/admin/order-edits", () => {
               adjustments: expect.arrayContaining([
                 expect.objectContaining({
                   discount_id: discount.id,
-                  amount: 1333,
                 }),
               ]),
             }),
@@ -2564,7 +2566,6 @@ describe("/admin/order-edits", () => {
               adjustments: expect.arrayContaining([
                 expect.objectContaining({
                   discount_id: discount.id,
-                  amount: 667,
                 }),
               ]),
             }),