feat: Initial authentication logic and UX

wp-content/themes/moonshine/shared/utils/graphql.ts

@@ -0,0 +1,4 @@
+// Helper: Extracts nodes from a GraphQL connection object, returning an empty array if nodes are absent.
+export function extractNodes<T>(connection: { nodes?: T[] } | null | undefined): T[] {
+  return connection?.nodes || [] as T[];
+}