Stage M5 and Stage M6

apps/api/prisma/seed/catalog.ts

@@ -312,6 +312,10 @@ async function seedProduct(
       primaryCategoryId: refs.categoryId ?? null,
       genderTargets: seed.genders,
       sportTypes: seed.sports,
+      // Persisted, not just used to build the seed SKUs: adding a colourway to
+      // a seeded product later has to extend the same SKU family, and without
+      // this the write path falls back to the slug.
+      skuPrefix: seed.skuPrefix,
     },
     create: {
       slug: seed.key,
@@ -324,6 +328,7 @@ async function seedProduct(
       primaryCategoryId: refs.categoryId ?? null,
       genderTargets: seed.genders,
       sportTypes: seed.sports,
+      skuPrefix: seed.skuPrefix,
     },
   });