feat: store key from draft on cart create

.changeset/gentle-pots-accept.md

@@ -0,0 +1,5 @@
+---
+"@labdigital/commercetools-mock": minor
+---
+
+Feat: takes store key from cart draft if not avaiable from context

src/repositories/cart/index.test.ts

@@ -286,6 +286,16 @@ describe("Cart repository", () => {
 		expect(result.shippingInfo?.taxRate?.name).toBe("Standard VAT");
 	});
 
+	test("create start with store from draft", () => {
+		const ctx = { projectKey: "dummy" };
+		const draft: CartDraft = {
+			currency: "USD",
+			store: { key: "draftStore", typeId: "store" },
+		};
+		const result = repository.create(ctx, draft);
+		expect(result.store).toEqual({ typeId: "store", key: "draftStore" });
+	});
+
 	test("create cart with business unit", async () => {
 		storage.add("dummy", "business-unit", {
 			...getBaseResourceProperties(),

src/repositories/cart/index.ts

@@ -153,7 +153,9 @@ export class CartRepository extends AbstractResourceRepository<"cart"> {
 		resource.totalPrice.centAmount = calculateCartTotalPrice(resource);
 		resource.store = context.storeKey
 			? { typeId: "store", key: context.storeKey }
-			: undefined;
+			: draft.store?.key
+				? { typeId: "store", key: draft.store.key }
+				: undefined;
 
 		// Set shipping info after resource is created
 		if (draft.shippingMethod) {