feat: implement wishlist feature with admin toggle

- Add WishlistController with full CRUD API
- Create wishlist page in My Account
- Add heart icon to all product card layouts (always visible)
- Implement useWishlist hook for state management
- Add wishlist toggle in admin Settings > Customer
- Fix wishlist menu visibility based on admin settings
- Fix double navigation in wishlist page
- Fix variable product navigation to use React Router
- Add TypeScript type casting fix for addresses

includes/Api/Routes.php

@@ -25,6 +25,7 @@ use WooNooW\Frontend\ShopController;
 use WooNooW\Frontend\CartController as FrontendCartController;
 use WooNooW\Frontend\AccountController;
 use WooNooW\Frontend\AddressController;
+use WooNooW\Frontend\WishlistController;
 use WooNooW\Frontend\HookBridge;
 use WooNooW\Api\Controllers\SettingsController;
 use WooNooW\Api\Controllers\CartController as ApiCartController;
@@ -127,6 +128,7 @@ class Routes {
             FrontendCartController::register_routes();
             AccountController::register_routes();
             AddressController::register_routes();
+            WishlistController::register_routes();
             HookBridge::register_routes();
         });
     }