Fix catalogue API base URL missing /web segment

catalogueApi.ts's fallback base URL ("/live/api/v1") was one path
segment short of where the routes actually live ("/live/api/v1/web"),
unlike every other service file's fallback. Any build without
VITE_FIESTA_URL set (it's gitignored, never committed) 404'd on every
catalogue call — browse, brands, categories, and import.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/services/catalogueApi.ts

@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-const API_BASE = import.meta.env.VITE_FIESTA_URL || "https://fiesta.nearle.app/live/api/v1";
+const API_BASE = import.meta.env.VITE_FIESTA_URL || "https://fiesta.nearle.app/live/api/v1/web";
 
 export interface CatalogueProduct {
   id: number;