feat(core-flows, product): options checks on product create/update (#9171)

**What**
- validate that variants are unique with respect to options on product update/create and variant update/create
- validate that the product has options upon creation
- ensure variants have the same number of option values as the product has options
- admin error handling
- update tests

---

FIXES FRMW-2707 CC-556

integration-tests/http/__tests__/inventory/admin/inventory.spec.ts

@@ -839,9 +839,11 @@ medusaIntegrationTestRunner({
               "/admin/products",
               {
                 title: "product 1",
+                options: [{ title: "size", values: ["large"] }],
                 variants: [
                   {
                     title: "variant 1",
+                    options: { size: "large" },
                     prices: [{ currency_code: "usd", amount: 100 }],
                     inventory_items: [
                       {