fix(loyalty): show translated category names on terminal

Category pills in the PIN modal now display the translated name
based on the page's current_language, falling back to the default
name (English) if no translation exists.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/modules/loyalty/templates/loyalty/store/terminal.html

@@ -338,7 +338,7 @@
                         :class="selectedCategories.includes(cat.id)
                             ? 'bg-purple-600 text-white border-purple-600'
                             : 'bg-white text-gray-700 border-gray-300 hover:bg-gray-50 dark:bg-gray-700 dark:text-gray-300 dark:border-gray-600'"
-                        x-text="cat.name">
+                        x-text="(cat.name_translations && cat.name_translations['{{ current_language | default('en') }}']) || cat.name">
                 </button>
             </template>
         </div>