Order api: create order schema

prisma/schema/account.schema.prisma

@@ -18,5 +18,7 @@ model Account {
     createdAt          DateTime  @default(now())
     updatedAt          DateTime  @default(now())
 
-    profile Profile?
+    profile Profile? //one-to-one
+
+    orders Order[] //one-to-many
 }