first commit

app/plugins/04.cart-persist.client.ts

@@ -0,0 +1,15 @@
+import { useCartStore } from '~/stores/cart';
+
+export default defineNuxtPlugin(() => {
+    const cartStore = useCartStore();
+    const storageKey = cartStore.getStorageKey();
+
+    cartStore.hydrateFromStorage(localStorage.getItem(storageKey));
+
+    cartStore.$subscribe(
+        () => {
+            localStorage.setItem(storageKey, cartStore.toStoragePayload());
+        },
+        { detached: true }
+    );
+});