add gtin field to db schema -> Wen cant use is as id since relations depend on type Int. Trying Float for price storage. I dont think this works..

prisma/schema.prisma

@@ -52,8 +52,9 @@ model sales {
 
 model products {
   id   Int    @id @unique @default(autoincrement())
+  gtin String @unique // Dont try to use BigInt -> https://github.com/prisma/studio/issues/614
   name String @unique
-  price Float
+  price Float // FIXME: input:  77.80 -> output: 77.8
   stock Int
   visible Boolean @default(true)