updated search suggestions functionality

src/api/client.js

@@ -179,8 +179,15 @@ export const api = {
   getProductDetail: (brand, imageId) =>
     request(`/api/brands/${encodeURIComponent(brand)}/products/${encodeURIComponent(imageId)}`),
 
-  search: (q, { brand, category, top_k = 50 } = {}) =>
-    request(`/api/search${qs({ q, brand, category, top_k })}`),
+  // Same reasoning as SHOW_ALL_PRODUCTS_LIMIT above: searching a brand name must
+  // return that brand's whole catalog, not a page of it. The old default of 50
+  // was in any case ignored - the backend clamped every search to 15.
+  search: (q, { brand, category, top_k = SHOW_ALL_PRODUCTS_LIMIT, offset = 0 } = {}) =>
+    request(`/api/search${qs({ q, brand, category, top_k, offset })}`),
+
+  // Autocomplete for the catalog search box. Answers from in-process caches,
+  // so it is safe to call per keystroke (debounced in useSuggestions).
+  suggest: (q, { limit = 8 } = {}) => request(`/api/suggest${qs({ q, limit })}`),
 
   chat: ({ query, brand, category, top_k, history }) =>
     request('/api/chat', {