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/useCatalogHubs.ts

@@ -1,4 +1,4 @@
-import { GetNodesDocument } from '~/composables/graphql/public/geo-generated'
+import { GetNodesDocument, GetHubCountriesDocument } from '~/composables/graphql/public/geo-generated'
 
 const PAGE_SIZE = 24
 
@@ -6,6 +6,8 @@ const PAGE_SIZE = 24
 const items = ref<any[]>([])
 const total = ref(0)
 const selectedFilter = ref('all')
+const selectedCountry = ref('all')
+const countries = ref<string[]>([])
 const isLoading = ref(false)
 const isLoadingMore = ref(false)
 const isInitialized = ref(false)
@@ -22,6 +24,11 @@ export function useCatalogHubs() {
     { id: 'air', label: t('catalogHubsSection.filters.air') }
   ])
 
+  const countryFilters = computed(() => [
+    { id: 'all', label: t('catalogHubsSection.filters.all_countries') },
+    ...countries.value.map(c => ({ id: c, label: c }))
+  ])
+
   const itemsWithCoords = computed(() =>
     items.value.filter(h => h.latitude && h.longitude)
   )
@@ -44,9 +51,10 @@ export function useCatalogHubs() {
     if (replace) isLoading.value = true
     try {
       const transportType = selectedFilter.value === 'all' ? null : selectedFilter.value
+      const country = selectedCountry.value === 'all' ? null : selectedCountry.value
       const data = await execute(
         GetNodesDocument,
-        { limit: PAGE_SIZE, offset, transportType },
+        { limit: PAGE_SIZE, offset, transportType, country },
         'public',
         'geo'
       )
@@ -59,6 +67,15 @@ export function useCatalogHubs() {
     }
   }
 
+  const loadCountries = async () => {
+    try {
+      const data = await execute(GetHubCountriesDocument, {}, 'public', 'geo')
+      countries.value = data?.hubCountries || []
+    } catch (e) {
+      console.error('Failed to load hub countries', e)
+    }
+  }
+
   const loadMore = async () => {
     if (isLoadingMore.value) return
     isLoadingMore.value = true
@@ -70,7 +87,7 @@ export function useCatalogHubs() {
   }
 
   // При смене фильтра - перезагрузка
-  watch(selectedFilter, () => {
+  watch([selectedFilter, selectedCountry], () => {
     if (isInitialized.value) {
       fetchPage(0, true)
     }
@@ -79,7 +96,10 @@ export function useCatalogHubs() {
   // Initialize data if not already loaded
   const init = async () => {
     if (!isInitialized.value && items.value.length === 0) {
-      await fetchPage(0, true)
+      await Promise.all([
+        fetchPage(0, true),
+        loadCountries()
+      ])
     }
   }
 
@@ -87,7 +107,9 @@ export function useCatalogHubs() {
     items,
     total,
     selectedFilter,
+    selectedCountry,
     filters,
+    countryFilters,
     isLoading,
     isLoadingMore,
     itemsWithCoords,