chore: add category for aisay app

Author: kevinkim-ogp

packages/backend/src/apps/aisay/index.ts

@@ -8,6 +8,7 @@ import queue from './queue'
 const app: IApp = {
   name: 'AISAY',
   key: 'aisay',
+  category: 'others',
   description:
     'AI-powered document reader that automates the extraction and validation of data',
   iconUrl: '{BASE_URL}/apps/aisay/assets/favicon.svg',