🚩 create basic flow for fetching user data

src/helpers/http/userHeader/query/parseArrayQuery.ts

@@ -0,0 +1,11 @@
+import { Context } from "elysia";
+
+export const parseArrayQuery = <T extends string = string>(
+  query: Context["query"],
+  key: string
+): T[] => {
+  const raw = query[key];
+  if (!raw) return [];
+
+  return raw.split(",").map((s) => s.trim()) as T[];
+};