Improve catalog UX: remove category, add offers count, dynamic layout

- ProductCard: remove category field, add offersCount display
- CatalogPage: add fullWidthMap prop for map-only view
- catalog/index: pass fullWidthMap based on selectMode
- i18n: add offers pluralization

app/components/catalog/ProductCard.vue

@@ -14,10 +14,10 @@
       ]"
     >
       <Stack gap="2">
-        <Stack gap="1">
-          <Text size="base" weight="semibold">{{ product.name }}</Text>
-          <Text tone="muted">{{ product.categoryName || t('catalogProduct.labels.category_unknown') }}</Text>
-        </Stack>
+        <Text size="base" weight="semibold">{{ product.name }}</Text>
+        <Text v-if="product.offersCount" tone="muted" size="sm">
+          {{ product.offersCount }} {{ t('catalog.offers', product.offersCount) }}
+        </Text>
         <Text v-if="product.description && !compact" tone="muted" size="sm">{{ product.description }}</Text>
       </Stack>
     </Card>
@@ -30,8 +30,8 @@ import { NuxtLink } from '#components'
 interface Product {
   uuid?: string | null
   name?: string | null
-  categoryName?: string | null
   description?: string | null
+  offersCount?: number | null
 }
 
 const props = defineProps<{