Mass replace irelax with homaroma across project

apps/spa/src/pages/ShopPage.tsx

@@ -27,7 +27,7 @@ export default function ShopPage() {
     const params = new URLSearchParams(location.search)
     const coupon = params.get('coupon')
     if (coupon) {
-      localStorage.setItem('irelax_active_coupon', coupon)
+      localStorage.setItem('homaroma_active_coupon', coupon)
       // Optionally clean URL
       window.history.replaceState({}, document.title, window.location.pathname)
     }