fix: product delete (single+bulk) had zero confirmation

(delete) and (bulkDelete) called facade.deleteOne()/applyBulkDelete()
straight from the click event. Added app-confirm-dialog gates for
both, same pattern as categories.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/i18n/en.ts

@@ -1617,6 +1617,9 @@ export const en: Translations = {
   },
   adminProducts: {
     confirmLeaveUnsaved: 'You have unsaved changes. Leave without saving?',
+    deleteTitle: 'Delete product',
+    confirmDelete: 'Delete this product? This cannot be undone.',
+    confirmBulkDelete: 'Delete the selected products? This cannot be undone.',
     emptyTitle: 'No products found',
     emptyDescription: 'Try adjusting your filters, or create a new product.',
     emptyGuide: 'Good products have a clear title, at least one photo, a price, and a short description — that\'s enough to publish. You can always add more detail later.',