docs: add JSDoc headers to all externally exported store functions

src/store/article/setCategoryIdsBySku.js

@@ -7,6 +7,17 @@ import resolveCategoryAccess from '../category/resolveCategoryAccess.js';
 import queryBySku from './queryBySku.js';
 import resolveArticleBySku from './resolveArticleBySku.js';
 
+/**
+ * Replaces the category membership of an article by its SKU.
+ *
+ * @param {object} pool - The mssql connection pool.
+ * @returns {Function} An async function that sets the article categories.
+ *
+ * @example
+ * const fn = setCategoryIdsBySku(pool);
+ * const article = await fn(42, 'SKU-1', [5, 9]);
+ * // => { id, sku, name, ... }
+ */
 export default function setCategoryIdsBySku(pool) {
   const resolve = resolveArticleBySku(pool);
   const categoryAccess = resolveCategoryAccess(pool);