feat: Convert helpers to use JS files

packages/backend/src/helpers/pagination.js

@@ -0,0 +1,23 @@
+const paginate = async (query, limit, offset) => {
+  if (limit < 1 || limit > 100) {
+    throw new Error('Limit must be between 1 and 100');
+  }
+
+  const [records, count] = await Promise.all([
+    query.limit(limit).offset(offset),
+    query.resultSize(),
+  ]);
+
+  return {
+    pageInfo: {
+      currentPage: Math.ceil(offset / limit + 1),
+      totalPages: Math.ceil(count / limit),
+    },
+    totalCount: count,
+    edges: records.map((record) => ({
+      node: record,
+    })),
+  };
+};
+
+export default paginate;