Add article.listSearchIndex for client-side search preload

Returns all company articles with id, sku, name, and eans as a flat
array. Walks the category tree to find reachable articles. Single
query using recursive CTE + FOR JSON for eans.

src/index.js

@@ -20,6 +20,7 @@ import articleOrderImages from './store/article/orderImages.js';
 import articleAddImage from './store/article/addImage.js';
 import articleCreateUnderParent from './store/article/createUnderParent.js';
 import articleGetBySku from './store/article/getBySku.js';
+import articleListSearchIndex from './store/article/listSearchIndex.js';
 import articleUpdateBySku from './store/article/updateBySku.js';
 import articleSetPricesBySku from './store/article/setPricesBySku.js';
 import articleSetEansBySku from './store/article/setEansBySku.js';
@@ -95,6 +96,7 @@ export default class LibDashStore {
     this.article = {
       createUnderParent: articleCreateUnderParent(pool),
       getBySku: articleGetBySku(pool),
+      listSearchIndex: articleListSearchIndex(pool),
       updateBySku: articleUpdateBySku(pool),
       setPricesBySku: articleSetPricesBySku(pool),
       setEansBySku: articleSetEansBySku(pool),

src/sql/article.js

@@ -160,6 +160,46 @@ FROM brand
 WHERE id = @brandId AND company_id = @companyId
 `;
 
+/**
+ * Company-wide article search index.
+ * Returns one row per article with id, sku, name, and all eans as a JSON array.
+ * Used by the client for local search / autocomplete.
+ */
+export const SEARCH_ARTICLES = `
+;WITH category_tree AS (
+    SELECT id
+    FROM category
+    WHERE id = @rootCategoryId
+
+    UNION ALL
+
+    SELECT c.id
+    FROM category c
+    INNER JOIN category_tree ct ON c.parent_id = ct.id
+)
+SELECT
+    a.id,
+    a.sku,
+    at.name,
+    (
+        SELECT ae.ean
+        FROM articleean ae
+        WHERE ae.article_id = a.id
+        ORDER BY ae.ean
+        FOR JSON PATH
+    ) AS eansJson
+FROM article a
+LEFT JOIN articletext at
+    ON at.article_id = a.id AND at.language_id = @languageId
+WHERE EXISTS (
+    SELECT 1
+    FROM categoryarticle ca
+    INNER JOIN category_tree ct ON ct.id = ca.category_id
+    WHERE ca.article_id = a.id
+)
+ORDER BY a.id
+`;
+
 /**
  * Single-query replacement for resolveArticleBySku + queryBySku.
  * Resolves SKU → article + company + auth, then loads full article detail

src/store/article/listSearchIndex.js

@@ -0,0 +1,23 @@
+import { SEARCH_ARTICLES } from '../../sql/article.js';
+import resolveCompanyAccess from '../companyuser/resolveCompanyAccess.js';
+
+export default function listSearchIndex(pool) {
+  const access = resolveCompanyAccess(pool);
+
+  return async (googleAuthId, companyId) => {
+    const { rootCategoryId, languageId } = await access(googleAuthId, companyId);
+
+    const result = await pool
+      .request()
+      .input('rootCategoryId', rootCategoryId)
+      .input('languageId', languageId)
+      .query(SEARCH_ARTICLES);
+
+    return result.recordset.map((row) => ({
+      id: row.id,
+      sku: row.sku,
+      name: row.name,
+      eans: row.eansJson ? JSON.parse(row.eansJson).map((r) => r.ean) : [],
+    }));
+  };
+}