0 is out of stock and nothing is available from now on

src/seed.rs

@@ -177,7 +177,7 @@ pub async fn seed_catalog(ctx: &AppContext) -> Result<()> {
             label: Set(String::new()),
             position: Set(0),
             sku: Set(item.sku.map(|s| s.to_string())),
-            stock: Set(item.stock),
+            stock: Set(Some(item.stock)),
             price_cents: Set(item.price_cents),
             ..Default::default()
         }