UI improvements: filters, map layout, search bar

- Add hubCountries query and country filter for hubs page
- Add getAvailableProducts query for offers (only products with active offers)
- Add sourceLatitude/sourceLongitude to orders GraphQL
- Fix ListMapLayout with position fixed for proper map height
- GlobalSearchBar: make fields wider, remove unit selector
- Remove status/isVerified filters from suppliers/offers (backend handles this)

app/composables/useCatalogSuppliers.ts

@@ -5,20 +5,13 @@ const PAGE_SIZE = 24
 // Shared state across list and map views
 const items = ref<any[]>([])
 const total = ref(0)
-const selectedFilter = ref('all')
 const isLoading = ref(false)
 const isLoadingMore = ref(false)
 const isInitialized = ref(false)
 
 export function useCatalogSuppliers() {
-  const { t } = useI18n()
   const { execute } = useGraphQL()
 
-  const filters = computed(() => [
-    { id: 'all', label: t('catalogSuppliersSection.filters.all') },
-    { id: 'verified', label: t('catalogSuppliersSection.filters.verified') }
-  ])
-
   const itemsWithCoords = computed(() =>
     items.value.filter(s => s.latitude && s.longitude)
   )
@@ -28,10 +21,9 @@ export function useCatalogSuppliers() {
   const fetchPage = async (offset: number, replace = false) => {
     if (replace) isLoading.value = true
     try {
-      const isVerified = selectedFilter.value === 'verified' ? true : null
       const data = await execute(
         GetSupplierProfilesDocument,
-        { limit: PAGE_SIZE, offset, isVerified },
+        { limit: PAGE_SIZE, offset },
         'public',
         'exchange'
       )
@@ -54,13 +46,6 @@ export function useCatalogSuppliers() {
     }
   }
 
-  // При смене фильтра - перезагрузка
-  watch(selectedFilter, () => {
-    if (isInitialized.value) {
-      fetchPage(0, true)
-    }
-  })
-
   // Initialize data if not already loaded
   const init = async () => {
     if (!isInitialized.value && items.value.length === 0) {
@@ -71,8 +56,6 @@ export function useCatalogSuppliers() {
   return {
     items,
     total,
-    selectedFilter,
-    filters,
     isLoading,
     isLoadingMore,
     itemsWithCoords,