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/composables/useClusteredNodes.ts

@@ -35,7 +35,7 @@ export function useClusteredNodes(
         fetchPolicy: 'network-only'
       })
 
-      clusteredNodes.value = (data?.clustered_nodes ?? []).filter(Boolean) as ClusterPoint[]
+      clusteredNodes.value = (data?.clusteredNodes ?? []).filter(Boolean) as ClusterPoint[]
     } catch (error) {
       console.error('Failed to fetch clustered nodes:', error)
       clusteredNodes.value = []