fix(order, core-flows): Tax inclusive order line item adjustments (#12875)

* fix(order, core-flows): Tax inclusive order line item adjustments

* fix test

packages/modules/order/src/migrations/.snapshot-medusa-order.json

@@ -2085,6 +2085,16 @@
           "nullable": true,
           "mappedType": "text"
         },
+        "is_tax_inclusive": {
+          "name": "is_tax_inclusive",
+          "type": "boolean",
+          "unsigned": false,
+          "autoincrement": false,
+          "primary": false,
+          "nullable": false,
+          "default": "false",
+          "mappedType": "boolean"
+        },
         "item_id": {
           "name": "item_id",
           "type": "text",

packages/modules/order/src/migrations/Migration20250702095353.ts

@@ -0,0 +1,13 @@
+import { Migration } from '@mikro-orm/migrations';
+
+export class Migration20250702095353 extends Migration {
+
+  override async up(): Promise<void> {
+    this.addSql(`alter table if exists "order_line_item_adjustment" add column if not exists "is_tax_inclusive" boolean not null default false;`);
+  }
+
+  override async down(): Promise<void> {
+    this.addSql(`alter table if exists "order_line_item_adjustment" drop column if exists "is_tax_inclusive";`);
+  }
+
+}

packages/modules/order/src/models/line-item-adjustment.ts

@@ -9,6 +9,7 @@ const _OrderLineItemAdjustment = model
     code: model.text().nullable(),
     amount: model.bigNumber(),
     provider_id: model.text().nullable(),
+    is_tax_inclusive: model.boolean().default(false),
     item: model.belongsTo<() => typeof OrderLineItem>(() => OrderLineItem, {
       mappedBy: "adjustments",
     }),