fix: migrate geo GraphQL queries and frontend to camelCase

Geo backend was migrated to camelCase but frontend .graphql files and
component code still used snake_case, causing 400 errors on all geo API calls.

app/pages/catalog/hubs/[id]/index.vue

@@ -152,12 +152,12 @@ try {
 
     // Group offers by product
     const productsMap = new Map<string, { uuid: string; name: string }>()
-    offersData.value?.nearest_offers?.forEach((offer) => {
-      if (offer?.product_uuid) {
-        if (!productsMap.has(offer.product_uuid)) {
-          productsMap.set(offer.product_uuid, {
-            uuid: offer.product_uuid,
-            name: offer.product_name || ''
+    offersData.value?.nearestOffers?.forEach((offer) => {
+      if (offer?.productUuid) {
+        if (!productsMap.has(offer.productUuid)) {
+          productsMap.set(offer.productUuid, {
+            uuid: offer.productUuid,
+            name: offer.productName || ''
           })
         }
       }