feat(catalog): sprint 10.2 ux responsive empty-states polish

src/app/i18n/en.ts

@@ -181,7 +181,7 @@ export const en: Translations = {
     clearHistory: 'Clear',
     searchNoResultsHint: 'No results found for this query. Try broader keywords.',
     sortBy: 'Sort by',
-    sortRelevance: 'Relevance',
+    sortRelevance: 'Recommended',
     sortLatest: 'Newest',
     sortPriceAsc: 'Price Low -> High',
     sortPriceDesc: 'Price High -> Low',
@@ -199,6 +199,20 @@ export const en: Translations = {
     previousPage: 'Previous',
     nextPage: 'Next',
     pageOf: 'Page {{page}} / {{total}}',
+    emptyCategoryTitle: 'This category has no products yet',
+    emptyCategoryMessage: 'Try browsing parent categories or return to the full catalog.',
+    browseCategories: 'Browse Categories',
+    noFilterMatchTitle: 'No products match your selected filters.',
+    noFilterMatchMessage: 'Try broadening price, attributes, or brand filters.',
+    clearFilters: 'Clear Filters',
+    openFilters: 'Open Filters',
+    applyFilters: 'Apply',
+    close: 'Close',
+    filtersDrawerAria: 'Filters drawer',
+    sortSheetAria: 'Sort options',
+    mobileToolbarAria: 'Catalog mobile toolbar',
+    gridCycle: 'Grid',
+    filtersPanelAria: 'Catalog filters',
     filterPrice: 'Price',
     filterAvailability: 'Availability',
     filterInStock: 'In stock',